From patchwork Thu Jun 3 08:18:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ben.Tseng" X-Patchwork-Id: 12296587 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7D44C47082 for ; Thu, 3 Jun 2021 08:21:12 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A7B42613E3 for ; Thu, 3 Jun 2021 08:21:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A7B42613E3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=P1va3j9scSLlxXKUGPYUxSfwZQBg5+9XNoYHhPsid04=; b=CgzC62r0BW8RH/ 9j7g2untDtS3uC6E52/5zGulcLvLj2cZmM5BR9HpaFD1woCfQ6raFWnpKSDAexJ7omB3/SR6/YXpx +URJd1+7N26c6odAUNoUUPml7ne9ZL/ig+e4D/VyaCz47B86cvqHxyjCBdW0o3B/KPq8E93566NIJ vTVhmhf82HzQ+lcO/06r86GIbwROE+XxrnzFOMDJC5ajDFA6IDsf6SU+8yIt67qhZN17su428+Io+ qsvnIJ26LdU2Vu1XlA+6YoTpIUj0+KpMlXq+1gB6t8SLfturi5To1Dw2+62U5R7W0pNTOz/M2fNRr o8tyKMalIKjZ6mJqlVHg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1loiZD-007dbm-4Z; Thu, 03 Jun 2021 08:19:03 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1loiYW-007dMV-Pr; Thu, 03 Jun 2021 08:18:26 +0000 X-UUID: 33abff21609f42f2be500e5da031afe8-20210603 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=D8L59vq9RhMMKUS/J7Zf2m57rSNpZZOEsh/M6wacoDg=; b=KwtLp8pG+CaoKfyuh/kepiEMS2kvsD4/1q58btD+9e16ZNOAlMTBhE/9K4NIH8fV8i0kB6Fdn8AlaGHZB1rk7jgcQjzcek8jTXQkMTGenNtJSgcU5NmEaYCUpqjHMH6F5tjS6EE2AanvZjm/GwJCjShMkggDwQFBwIhdODS8LII=; X-UUID: 33abff21609f42f2be500e5da031afe8-20210603 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 310065986; Thu, 03 Jun 2021 01:18:12 -0700 Received: from MTKMBS06N1.mediatek.inc (172.21.101.129) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Jun 2021 01:18:10 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs06n1.mediatek.inc (172.21.101.129) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Jun 2021 16:18:08 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 3 Jun 2021 16:18:07 +0800 From: Ben Tseng To: Fan Chen , Zhang Rui , "Daniel Lezcano" , , CC: Eduardo Valentin , Rob Herring , Mark Rutland , Matthias Brugger , , , , , , , Michael Kao , Ben Tseng Subject: [PATCH v4 1/3] thermal: mediatek: Relocate driver to mediatek folder Date: Thu, 3 Jun 2021 16:18:04 +0800 Message-ID: <20210603081806.21154-2-ben.tseng@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210603081806.21154-1-ben.tseng@mediatek.com> References: <20210603081806.21154-1-ben.tseng@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_011820_968620_65F31AC6 X-CRM114-Status: GOOD ( 22.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Michael Kao Add Mediatek proprietary folder to upstream more thermal zone and cooler drivers. Relocate the original thermal controller driver to it and rename as soc_temp.c to show its purpose more clearly. Signed-off-by: Ben Tseng Signed-off-by: Michael Kao --- drivers/thermal/Kconfig | 14 +- drivers/thermal/Makefile | 2 +- drivers/thermal/mediatek/Kconfig | 23 + drivers/thermal/mediatek/Makefile | 1 + drivers/thermal/mediatek/soc_temp.c | 1127 +++++++++++++++++++++++++++++++++++ drivers/thermal/mtk_thermal.c | 1127 ----------------------------------- 6 files changed, 1156 insertions(+), 1138 deletions(-) create mode 100644 drivers/thermal/mediatek/Kconfig create mode 100644 drivers/thermal/mediatek/Makefile create mode 100644 drivers/thermal/mediatek/soc_temp.c delete mode 100644 drivers/thermal/mtk_thermal.c diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index d7f44de..7a4ba50 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -401,16 +401,10 @@ config DA9062_THERMAL zone. Compatible with the DA9062 and DA9061 PMICs. -config MTK_THERMAL - tristate "Temperature sensor driver for mediatek SoCs" - depends on ARCH_MEDIATEK || COMPILE_TEST - depends on HAS_IOMEM - depends on NVMEM || NVMEM=n - depends on RESET_CONTROLLER - default y - help - Enable this option if you want to have support for thermal management - controller present in Mediatek SoCs +menu "Mediatek thermal drivers" +depends on ARCH_MEDIATEK || COMPILE_TEST +source "drivers/thermal/mediatek/Kconfig" +endmenu config AMLOGIC_THERMAL tristate "Amlogic Thermal Support" diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index 82fc3e6..9729a2b 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -54,7 +54,7 @@ obj-y += st/ obj-$(CONFIG_QCOM_TSENS) += qcom/ obj-y += tegra/ obj-$(CONFIG_HISI_THERMAL) += hisi_thermal.o -obj-$(CONFIG_MTK_THERMAL) += mtk_thermal.o +obj-$(CONFIG_MTK_THERMAL) += mediatek/ obj-$(CONFIG_GENERIC_ADC_THERMAL) += thermal-generic-adc.o obj-$(CONFIG_UNIPHIER_THERMAL) += uniphier_thermal.o obj-$(CONFIG_AMLOGIC_THERMAL) += amlogic_thermal.o diff --git a/drivers/thermal/mediatek/Kconfig b/drivers/thermal/mediatek/Kconfig new file mode 100644 index 0000000..0351e73 --- /dev/null +++ b/drivers/thermal/mediatek/Kconfig @@ -0,0 +1,23 @@ +config MTK_THERMAL + tristate "Mediatek thermal drivers" + depends on THERMAL_OF + help + This is the option for Mediatek thermal software + solutions. Please enable corresponding options to + get temperature information from thermal sensors or + turn on throttle mechaisms for thermal mitigation. + +if MTK_THERMAL + +config MTK_SOC_THERMAL + tristate "Temperature sensor driver for mediatek SoCs" + depends on HAS_IOMEM + depends on NVMEM + depends on RESET_CONTROLLER + help + Enable this option if you want to get SoC temperature + information for Mediatek platforms. This driver + configures thermal controllers to collect temperature + via AUXADC interface. + +endif diff --git a/drivers/thermal/mediatek/Makefile b/drivers/thermal/mediatek/Makefile new file mode 100644 index 0000000..f75313d --- /dev/null +++ b/drivers/thermal/mediatek/Makefile @@ -0,0 +1 @@ +obj-$(CONFIG_MTK_SOC_THERMAL) += soc_temp.o diff --git a/drivers/thermal/mediatek/soc_temp.c b/drivers/thermal/mediatek/soc_temp.c new file mode 100644 index 0000000..97e8678 --- /dev/null +++ b/drivers/thermal/mediatek/soc_temp.c @@ -0,0 +1,1127 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2015 MediaTek Inc. + * Author: Hanyi Wu + * Sascha Hauer + * Dawei Chien + * Louis Yu + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* AUXADC Registers */ +#define AUXADC_CON1_SET_V 0x008 +#define AUXADC_CON1_CLR_V 0x00c +#define AUXADC_CON2_V 0x010 +#define AUXADC_DATA(channel) (0x14 + (channel) * 4) + +#define APMIXED_SYS_TS_CON1 0x604 + +/* Thermal Controller Registers */ +#define TEMP_MONCTL0 0x000 +#define TEMP_MONCTL1 0x004 +#define TEMP_MONCTL2 0x008 +#define TEMP_MONIDET0 0x014 +#define TEMP_MONIDET1 0x018 +#define TEMP_MSRCTL0 0x038 +#define TEMP_MSRCTL1 0x03c +#define TEMP_AHBPOLL 0x040 +#define TEMP_AHBTO 0x044 +#define TEMP_ADCPNP0 0x048 +#define TEMP_ADCPNP1 0x04c +#define TEMP_ADCPNP2 0x050 +#define TEMP_ADCPNP3 0x0b4 + +#define TEMP_ADCMUX 0x054 +#define TEMP_ADCEN 0x060 +#define TEMP_PNPMUXADDR 0x064 +#define TEMP_ADCMUXADDR 0x068 +#define TEMP_ADCENADDR 0x074 +#define TEMP_ADCVALIDADDR 0x078 +#define TEMP_ADCVOLTADDR 0x07c +#define TEMP_RDCTRL 0x080 +#define TEMP_ADCVALIDMASK 0x084 +#define TEMP_ADCVOLTAGESHIFT 0x088 +#define TEMP_ADCWRITECTRL 0x08c +#define TEMP_MSR0 0x090 +#define TEMP_MSR1 0x094 +#define TEMP_MSR2 0x098 +#define TEMP_MSR3 0x0B8 + +#define TEMP_SPARE0 0x0f0 + +#define TEMP_ADCPNP0_1 0x148 +#define TEMP_ADCPNP1_1 0x14c +#define TEMP_ADCPNP2_1 0x150 +#define TEMP_MSR0_1 0x190 +#define TEMP_MSR1_1 0x194 +#define TEMP_MSR2_1 0x198 +#define TEMP_ADCPNP3_1 0x1b4 +#define TEMP_MSR3_1 0x1B8 + +#define PTPCORESEL 0x400 + +#define TEMP_MONCTL1_PERIOD_UNIT(x) ((x) & 0x3ff) + +#define TEMP_MONCTL2_FILTER_INTERVAL(x) (((x) & 0x3ff) << 16) +#define TEMP_MONCTL2_SENSOR_INTERVAL(x) ((x) & 0x3ff) + +#define TEMP_AHBPOLL_ADC_POLL_INTERVAL(x) (x) + +#define TEMP_ADCWRITECTRL_ADC_PNP_WRITE BIT(0) +#define TEMP_ADCWRITECTRL_ADC_MUX_WRITE BIT(1) + +#define TEMP_ADCVALIDMASK_VALID_HIGH BIT(5) +#define TEMP_ADCVALIDMASK_VALID_POS(bit) (bit) + +/* MT8173 thermal sensors */ +#define MT8173_TS1 0 +#define MT8173_TS2 1 +#define MT8173_TS3 2 +#define MT8173_TS4 3 +#define MT8173_TSABB 4 + +/* AUXADC channel 11 is used for the temperature sensors */ +#define MT8173_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT8173 */ +#define MT8173_NUM_SENSORS 5 + +/* The number of banks in the MT8173 */ +#define MT8173_NUM_ZONES 4 + +/* The number of sensing points per bank */ +#define MT8173_NUM_SENSORS_PER_ZONE 4 + +/* The number of controller in the MT8173 */ +#define MT8173_NUM_CONTROLLER 1 + +/* The calibration coefficient of sensor */ +#define MT8173_CALIBRATION 165 + +/* + * Layout of the fuses providing the calibration data + * These macros could be used for MT8183, MT8173, MT2701, and MT2712. + * MT8183 has 6 sensors and needs 6 VTS calibration data. + * MT8173 has 5 sensors and needs 5 VTS calibration data. + * MT2701 has 3 sensors and needs 3 VTS calibration data. + * MT2712 has 4 sensors and needs 4 VTS calibration data. + */ +#define CALIB_BUF0_VALID_V1 BIT(0) +#define CALIB_BUF1_ADC_GE_V1(x) (((x) >> 22) & 0x3ff) +#define CALIB_BUF0_VTS_TS1_V1(x) (((x) >> 17) & 0x1ff) +#define CALIB_BUF0_VTS_TS2_V1(x) (((x) >> 8) & 0x1ff) +#define CALIB_BUF1_VTS_TS3_V1(x) (((x) >> 0) & 0x1ff) +#define CALIB_BUF2_VTS_TS4_V1(x) (((x) >> 23) & 0x1ff) +#define CALIB_BUF2_VTS_TS5_V1(x) (((x) >> 5) & 0x1ff) +#define CALIB_BUF2_VTS_TSABB_V1(x) (((x) >> 14) & 0x1ff) +#define CALIB_BUF0_DEGC_CALI_V1(x) (((x) >> 1) & 0x3f) +#define CALIB_BUF0_O_SLOPE_V1(x) (((x) >> 26) & 0x3f) +#define CALIB_BUF0_O_SLOPE_SIGN_V1(x) (((x) >> 7) & 0x1) +#define CALIB_BUF1_ID_V1(x) (((x) >> 9) & 0x1) + +/* + * Layout of the fuses providing the calibration data + * These macros could be used for MT7622. + */ +#define CALIB_BUF0_ADC_OE_V2(x) (((x) >> 22) & 0x3ff) +#define CALIB_BUF0_ADC_GE_V2(x) (((x) >> 12) & 0x3ff) +#define CALIB_BUF0_DEGC_CALI_V2(x) (((x) >> 6) & 0x3f) +#define CALIB_BUF0_O_SLOPE_V2(x) (((x) >> 0) & 0x3f) +#define CALIB_BUF1_VTS_TS1_V2(x) (((x) >> 23) & 0x1ff) +#define CALIB_BUF1_VTS_TS2_V2(x) (((x) >> 14) & 0x1ff) +#define CALIB_BUF1_VTS_TSABB_V2(x) (((x) >> 5) & 0x1ff) +#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1) +#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1) + +enum { + VTS1, + VTS2, + VTS3, + VTS4, + VTS5, + VTSABB, + MAX_NUM_VTS, +}; + +enum mtk_thermal_version { + MTK_THERMAL_V1 = 1, + MTK_THERMAL_V2, +}; + +/* MT2701 thermal sensors */ +#define MT2701_TS1 0 +#define MT2701_TS2 1 +#define MT2701_TSABB 2 + +/* AUXADC channel 11 is used for the temperature sensors */ +#define MT2701_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT2701 */ +#define MT2701_NUM_SENSORS 3 + +/* The number of sensing points per bank */ +#define MT2701_NUM_SENSORS_PER_ZONE 3 + +/* The number of controller in the MT2701 */ +#define MT2701_NUM_CONTROLLER 1 + +/* The calibration coefficient of sensor */ +#define MT2701_CALIBRATION 165 + +/* MT2712 thermal sensors */ +#define MT2712_TS1 0 +#define MT2712_TS2 1 +#define MT2712_TS3 2 +#define MT2712_TS4 3 + +/* AUXADC channel 11 is used for the temperature sensors */ +#define MT2712_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT2712 */ +#define MT2712_NUM_SENSORS 4 + +/* The number of sensing points per bank */ +#define MT2712_NUM_SENSORS_PER_ZONE 4 + +/* The number of controller in the MT2712 */ +#define MT2712_NUM_CONTROLLER 1 + +/* The calibration coefficient of sensor */ +#define MT2712_CALIBRATION 165 + +#define MT7622_TEMP_AUXADC_CHANNEL 11 +#define MT7622_NUM_SENSORS 1 +#define MT7622_NUM_ZONES 1 +#define MT7622_NUM_SENSORS_PER_ZONE 1 +#define MT7622_TS1 0 +#define MT7622_NUM_CONTROLLER 1 + +/* The maximum number of banks */ +#define MAX_NUM_ZONES 8 + +/* The calibration coefficient of sensor */ +#define MT7622_CALIBRATION 165 + +/* MT8183 thermal sensors */ +#define MT8183_TS1 0 +#define MT8183_TS2 1 +#define MT8183_TS3 2 +#define MT8183_TS4 3 +#define MT8183_TS5 4 +#define MT8183_TSABB 5 + +/* AUXADC channel is used for the temperature sensors */ +#define MT8183_TEMP_AUXADC_CHANNEL 11 + +/* The total number of temperature sensors in the MT8183 */ +#define MT8183_NUM_SENSORS 6 + +/* The number of banks in the MT8183 */ +#define MT8183_NUM_ZONES 1 + +/* The number of sensing points per bank */ +#define MT8183_NUM_SENSORS_PER_ZONE 6 + +/* The number of controller in the MT8183 */ +#define MT8183_NUM_CONTROLLER 2 + +/* The calibration coefficient of sensor */ +#define MT8183_CALIBRATION 153 + +struct mtk_thermal; + +struct thermal_bank_cfg { + unsigned int num_sensors; + const int *sensors; +}; + +struct mtk_thermal_bank { + struct mtk_thermal *mt; + int id; +}; + +struct mtk_thermal_data { + s32 num_banks; + s32 num_sensors; + s32 auxadc_channel; + const int *vts_index; + const int *sensor_mux_values; + const int *msr; + const int *adcpnp; + const int cali_val; + const int num_controller; + const int *controller_offset; + bool need_switch_bank; + struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; + enum mtk_thermal_version version; +}; + +struct mtk_thermal { + struct device *dev; + void __iomem *thermal_base; + + struct clk *clk_peri_therm; + struct clk *clk_auxadc; + /* lock: for getting and putting banks */ + struct mutex lock; + + /* Calibration values */ + s32 adc_ge; + s32 adc_oe; + s32 degc_cali; + s32 o_slope; + s32 o_slope_sign; + s32 vts[MAX_NUM_VTS]; + + const struct mtk_thermal_data *conf; + struct mtk_thermal_bank banks[MAX_NUM_ZONES]; +}; + +/* MT8183 thermal sensor data */ +static const int mt8183_bank_data[MT8183_NUM_SENSORS] = { + MT8183_TS1, MT8183_TS2, MT8183_TS3, MT8183_TS4, MT8183_TS5, MT8183_TSABB +}; + +static const int mt8183_msr[MT8183_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0_1, TEMP_MSR1_1, TEMP_MSR2_1, TEMP_MSR1, TEMP_MSR0, TEMP_MSR3_1 +}; + +static const int mt8183_adcpnp[MT8183_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0_1, TEMP_ADCPNP1_1, TEMP_ADCPNP2_1, + TEMP_ADCPNP1, TEMP_ADCPNP0, TEMP_ADCPNP3_1 +}; + +static const int mt8183_mux_values[MT8183_NUM_SENSORS] = { 0, 1, 2, 3, 4, 0 }; +static const int mt8183_tc_offset[MT8183_NUM_CONTROLLER] = {0x0, 0x100}; + +static const int mt8183_vts_index[MT8183_NUM_SENSORS] = { + VTS1, VTS2, VTS3, VTS4, VTS5, VTSABB +}; + +/* MT8173 thermal sensor data */ +static const int mt8173_bank_data[MT8173_NUM_ZONES][3] = { + { MT8173_TS2, MT8173_TS3 }, + { MT8173_TS2, MT8173_TS4 }, + { MT8173_TS1, MT8173_TS2, MT8173_TSABB }, + { MT8173_TS2 }, +}; + +static const int mt8173_msr[MT8173_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 +}; + +static const int mt8173_adcpnp[MT8173_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 +}; + +static const int mt8173_mux_values[MT8173_NUM_SENSORS] = { 0, 1, 2, 3, 16 }; +static const int mt8173_tc_offset[MT8173_NUM_CONTROLLER] = { 0x0, }; + +static const int mt8173_vts_index[MT8173_NUM_SENSORS] = { + VTS1, VTS2, VTS3, VTS4, VTSABB +}; + +/* MT2701 thermal sensor data */ +static const int mt2701_bank_data[MT2701_NUM_SENSORS] = { + MT2701_TS1, MT2701_TS2, MT2701_TSABB +}; + +static const int mt2701_msr[MT2701_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0, TEMP_MSR1, TEMP_MSR2 +}; + +static const int mt2701_adcpnp[MT2701_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2 +}; + +static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 }; +static const int mt2701_tc_offset[MT2701_NUM_CONTROLLER] = { 0x0, }; + +static const int mt2701_vts_index[MT2701_NUM_SENSORS] = { + VTS1, VTS2, VTS3 +}; + +/* MT2712 thermal sensor data */ +static const int mt2712_bank_data[MT2712_NUM_SENSORS] = { + MT2712_TS1, MT2712_TS2, MT2712_TS3, MT2712_TS4 +}; + +static const int mt2712_msr[MT2712_NUM_SENSORS_PER_ZONE] = { + TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 +}; + +static const int mt2712_adcpnp[MT2712_NUM_SENSORS_PER_ZONE] = { + TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 +}; + +static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 }; +static const int mt2712_tc_offset[MT2712_NUM_CONTROLLER] = { 0x0, }; + +static const int mt2712_vts_index[MT2712_NUM_SENSORS] = { + VTS1, VTS2, VTS3, VTS4 +}; + +/* MT7622 thermal sensor data */ +static const int mt7622_bank_data[MT7622_NUM_SENSORS] = { MT7622_TS1, }; +static const int mt7622_msr[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, }; +static const int mt7622_adcpnp[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, }; +static const int mt7622_mux_values[MT7622_NUM_SENSORS] = { 0, }; +static const int mt7622_vts_index[MT7622_NUM_SENSORS] = { VTS1 }; +static const int mt7622_tc_offset[MT7622_NUM_CONTROLLER] = { 0x0, }; + +/* + * The MT8173 thermal controller has four banks. Each bank can read up to + * four temperature sensors simultaneously. The MT8173 has a total of 5 + * temperature sensors. We use each bank to measure a certain area of the + * SoC. Since TS2 is located centrally in the SoC it is influenced by multiple + * areas, hence is used in different banks. + * + * The thermal core only gets the maximum temperature of all banks, so + * the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data, and this indeed needs the temperatures of the individual banks + * for making better decisions. + */ +static const struct mtk_thermal_data mt8173_thermal_data = { + .auxadc_channel = MT8173_TEMP_AUXADC_CHANNEL, + .num_banks = MT8173_NUM_ZONES, + .num_sensors = MT8173_NUM_SENSORS, + .vts_index = mt8173_vts_index, + .cali_val = MT8173_CALIBRATION, + .num_controller = MT8173_NUM_CONTROLLER, + .controller_offset = mt8173_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 2, + .sensors = mt8173_bank_data[0], + }, { + .num_sensors = 2, + .sensors = mt8173_bank_data[1], + }, { + .num_sensors = 3, + .sensors = mt8173_bank_data[2], + }, { + .num_sensors = 1, + .sensors = mt8173_bank_data[3], + }, + }, + .msr = mt8173_msr, + .adcpnp = mt8173_adcpnp, + .sensor_mux_values = mt8173_mux_values, + .version = MTK_THERMAL_V1, +}; + +/* + * The MT2701 thermal controller has one bank, which can read up to + * three temperature sensors simultaneously. The MT2701 has a total of 3 + * temperature sensors. + * + * The thermal core only gets the maximum temperature of this one bank, + * so the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data. + */ +static const struct mtk_thermal_data mt2701_thermal_data = { + .auxadc_channel = MT2701_TEMP_AUXADC_CHANNEL, + .num_banks = 1, + .num_sensors = MT2701_NUM_SENSORS, + .vts_index = mt2701_vts_index, + .cali_val = MT2701_CALIBRATION, + .num_controller = MT2701_NUM_CONTROLLER, + .controller_offset = mt2701_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 3, + .sensors = mt2701_bank_data, + }, + }, + .msr = mt2701_msr, + .adcpnp = mt2701_adcpnp, + .sensor_mux_values = mt2701_mux_values, + .version = MTK_THERMAL_V1, +}; + +/* + * The MT2712 thermal controller has one bank, which can read up to + * four temperature sensors simultaneously. The MT2712 has a total of 4 + * temperature sensors. + * + * The thermal core only gets the maximum temperature of this one bank, + * so the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data. + */ +static const struct mtk_thermal_data mt2712_thermal_data = { + .auxadc_channel = MT2712_TEMP_AUXADC_CHANNEL, + .num_banks = 1, + .num_sensors = MT2712_NUM_SENSORS, + .vts_index = mt2712_vts_index, + .cali_val = MT2712_CALIBRATION, + .num_controller = MT2712_NUM_CONTROLLER, + .controller_offset = mt2712_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 4, + .sensors = mt2712_bank_data, + }, + }, + .msr = mt2712_msr, + .adcpnp = mt2712_adcpnp, + .sensor_mux_values = mt2712_mux_values, + .version = MTK_THERMAL_V1, +}; + +/* + * MT7622 have only one sensing point which uses AUXADC Channel 11 for raw data + * access. + */ +static const struct mtk_thermal_data mt7622_thermal_data = { + .auxadc_channel = MT7622_TEMP_AUXADC_CHANNEL, + .num_banks = MT7622_NUM_ZONES, + .num_sensors = MT7622_NUM_SENSORS, + .vts_index = mt7622_vts_index, + .cali_val = MT7622_CALIBRATION, + .num_controller = MT7622_NUM_CONTROLLER, + .controller_offset = mt7622_tc_offset, + .need_switch_bank = true, + .bank_data = { + { + .num_sensors = 1, + .sensors = mt7622_bank_data, + }, + }, + .msr = mt7622_msr, + .adcpnp = mt7622_adcpnp, + .sensor_mux_values = mt7622_mux_values, + .version = MTK_THERMAL_V2, +}; + +/* + * The MT8183 thermal controller has one bank for the current SW framework. + * The MT8183 has a total of 6 temperature sensors. + * There are two thermal controller to control the six sensor. + * The first one bind 2 sensor, and the other bind 4 sensors. + * The thermal core only gets the maximum temperature of all sensor, so + * the bank concept wouldn't be necessary here. However, the SVS (Smart + * Voltage Scaling) unit makes its decisions based on the same bank + * data, and this indeed needs the temperatures of the individual banks + * for making better decisions. + */ +static const struct mtk_thermal_data mt8183_thermal_data = { + .auxadc_channel = MT8183_TEMP_AUXADC_CHANNEL, + .num_banks = MT8183_NUM_ZONES, + .num_sensors = MT8183_NUM_SENSORS, + .vts_index = mt8183_vts_index, + .cali_val = MT8183_CALIBRATION, + .num_controller = MT8183_NUM_CONTROLLER, + .controller_offset = mt8183_tc_offset, + .need_switch_bank = false, + .bank_data = { + { + .num_sensors = 6, + .sensors = mt8183_bank_data, + }, + }, + + .msr = mt8183_msr, + .adcpnp = mt8183_adcpnp, + .sensor_mux_values = mt8183_mux_values, + .version = MTK_THERMAL_V1, +}; + +/** + * raw_to_mcelsius - convert a raw ADC value to mcelsius + * @mt: The thermal controller + * @sensno: sensor number + * @raw: raw ADC value + * + * This converts the raw ADC value to mcelsius using the SoC specific + * calibration constants + */ +static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw) +{ + s32 tmp; + + raw &= 0xfff; + + tmp = 203450520 << 3; + tmp /= mt->conf->cali_val + mt->o_slope; + tmp /= 10000 + mt->adc_ge; + tmp *= raw - mt->vts[sensno] - 3350; + tmp >>= 3; + + return mt->degc_cali * 500 - tmp; +} + +static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw) +{ + s32 format_1; + s32 format_2; + s32 g_oe; + s32 g_gain; + s32 g_x_roomt; + s32 tmp; + + if (raw == 0) + return 0; + + raw &= 0xfff; + g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12); + g_oe = mt->adc_oe - 512; + format_1 = mt->vts[VTS2] + 3105 - g_oe; + format_2 = (mt->degc_cali * 10) >> 1; + g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain; + + tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt; + tmp = tmp * 10 * 100 / 11; + + if (mt->o_slope_sign == 0) + tmp = tmp / (165 - mt->o_slope); + else + tmp = tmp / (165 + mt->o_slope); + + return (format_2 - tmp) * 100; +} + +/** + * mtk_thermal_get_bank - get bank + * @bank: The bank + * + * The bank registers are banked, we have to select a bank in the + * PTPCORESEL register to access it. + */ +static void mtk_thermal_get_bank(struct mtk_thermal_bank *bank) +{ + struct mtk_thermal *mt = bank->mt; + u32 val; + + if (mt->conf->need_switch_bank) { + mutex_lock(&mt->lock); + + val = readl(mt->thermal_base + PTPCORESEL); + val &= ~0xf; + val |= bank->id; + writel(val, mt->thermal_base + PTPCORESEL); + } +} + +/** + * mtk_thermal_put_bank - release bank + * @bank: The bank + * + * release a bank previously taken with mtk_thermal_get_bank, + */ +static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank) +{ + struct mtk_thermal *mt = bank->mt; + + if (mt->conf->need_switch_bank) + mutex_unlock(&mt->lock); +} + +/** + * mtk_thermal_bank_temperature - get the temperature of a bank + * @bank: The bank + * + * The temperature of a bank is considered the maximum temperature of + * the sensors associated to the bank. + */ +static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) +{ + struct mtk_thermal *mt = bank->mt; + const struct mtk_thermal_data *conf = mt->conf; + int i, temp = INT_MIN, max = INT_MIN; + u32 raw; + + for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) { + raw = readl(mt->thermal_base + conf->msr[i]); + + if (mt->conf->version == MTK_THERMAL_V1) { + temp = raw_to_mcelsius_v1( + mt, conf->bank_data[bank->id].sensors[i], raw); + } else { + temp = raw_to_mcelsius_v2( + mt, conf->bank_data[bank->id].sensors[i], raw); + } + + /* + * The first read of a sensor often contains very high bogus + * temperature value. Filter these out so that the system does + * not immediately shut down. + */ + if (temp > 200000) + temp = 0; + + if (temp > max) + max = temp; + } + + return max; +} + +static int mtk_read_temp(void *data, int *temperature) +{ + struct mtk_thermal *mt = data; + int i; + int tempmax = INT_MIN; + + for (i = 0; i < mt->conf->num_banks; i++) { + struct mtk_thermal_bank *bank = &mt->banks[i]; + + mtk_thermal_get_bank(bank); + + tempmax = max(tempmax, mtk_thermal_bank_temperature(bank)); + + mtk_thermal_put_bank(bank); + } + + *temperature = tempmax; + + return 0; +} + +static const struct thermal_zone_of_device_ops mtk_thermal_ops = { + .get_temp = mtk_read_temp, +}; + +static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, + u32 apmixed_phys_base, u32 auxadc_phys_base, + int ctrl_id) +{ + struct mtk_thermal_bank *bank = &mt->banks[num]; + const struct mtk_thermal_data *conf = mt->conf; + int i; + + int offset = mt->conf->controller_offset[ctrl_id]; + void __iomem *controller_base = mt->thermal_base + offset; + + bank->id = num; + bank->mt = mt; + + mtk_thermal_get_bank(bank); + + /* bus clock 66M counting unit is 12 * 15.15ns * 256 = 46.540us */ + writel(TEMP_MONCTL1_PERIOD_UNIT(12), controller_base + TEMP_MONCTL1); + + /* + * filt interval is 1 * 46.540us = 46.54us, + * sen interval is 429 * 46.540us = 19.96ms + */ + writel(TEMP_MONCTL2_FILTER_INTERVAL(1) | + TEMP_MONCTL2_SENSOR_INTERVAL(429), + controller_base + TEMP_MONCTL2); + + /* poll is set to 10u */ + writel(TEMP_AHBPOLL_ADC_POLL_INTERVAL(768), + controller_base + TEMP_AHBPOLL); + + /* temperature sampling control, 1 sample */ + writel(0x0, controller_base + TEMP_MSRCTL0); + + /* exceed this polling time, IRQ would be inserted */ + writel(0xffffffff, controller_base + TEMP_AHBTO); + + /* number of interrupts per event, 1 is enough */ + writel(0x0, controller_base + TEMP_MONIDET0); + writel(0x0, controller_base + TEMP_MONIDET1); + + /* + * The MT8173 thermal controller does not have its own ADC. Instead it + * uses AHB bus accesses to control the AUXADC. To do this the thermal + * controller has to be programmed with the physical addresses of the + * AUXADC registers and with the various bit positions in the AUXADC. + * Also the thermal controller controls a mux in the APMIXEDSYS register + * space. + */ + + /* + * this value will be stored to TEMP_PNPMUXADDR (TEMP_SPARE0) + * automatically by hw + */ + writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCMUX); + + /* AHB address for auxadc mux selection */ + writel(auxadc_phys_base + AUXADC_CON1_CLR_V, + controller_base + TEMP_ADCMUXADDR); + + if (mt->conf->version == MTK_THERMAL_V1) { + /* AHB address for pnp sensor mux selection */ + writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, + controller_base + TEMP_PNPMUXADDR); + } + + /* AHB value for auxadc enable */ + writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN); + + /* AHB address for auxadc enable (channel 0 immediate mode selected) */ + writel(auxadc_phys_base + AUXADC_CON1_SET_V, + controller_base + TEMP_ADCENADDR); + + /* AHB address for auxadc valid bit */ + writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), + controller_base + TEMP_ADCVALIDADDR); + + /* AHB address for auxadc voltage output */ + writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), + controller_base + TEMP_ADCVOLTADDR); + + /* read valid & voltage are at the same register */ + writel(0x0, controller_base + TEMP_RDCTRL); + + /* indicate where the valid bit is */ + writel(TEMP_ADCVALIDMASK_VALID_HIGH | TEMP_ADCVALIDMASK_VALID_POS(12), + controller_base + TEMP_ADCVALIDMASK); + + /* no shift */ + writel(0x0, controller_base + TEMP_ADCVOLTAGESHIFT); + + /* enable auxadc mux write transaction */ + writel(TEMP_ADCWRITECTRL_ADC_MUX_WRITE, + controller_base + TEMP_ADCWRITECTRL); + + for (i = 0; i < conf->bank_data[num].num_sensors; i++) + writel(conf->sensor_mux_values[conf->bank_data[num].sensors[i]], + mt->thermal_base + conf->adcpnp[i]); + + writel((1 << conf->bank_data[num].num_sensors) - 1, + controller_base + TEMP_MONCTL0); + + writel(TEMP_ADCWRITECTRL_ADC_PNP_WRITE | + TEMP_ADCWRITECTRL_ADC_MUX_WRITE, + controller_base + TEMP_ADCWRITECTRL); + + mtk_thermal_put_bank(bank); +} + +static u64 of_get_phys_base(struct device_node *np) +{ + u64 size64; + const __be32 *regaddr_p; + + regaddr_p = of_get_address(np, 0, &size64, NULL); + if (!regaddr_p) + return OF_BAD_ADDR; + + return of_translate_address(np, regaddr_p); +} + +static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf) +{ + int i; + + if (!(buf[0] & CALIB_BUF0_VALID_V1)) + return -EINVAL; + + mt->adc_ge = CALIB_BUF1_ADC_GE_V1(buf[1]); + + for (i = 0; i < mt->conf->num_sensors; i++) { + switch (mt->conf->vts_index[i]) { + case VTS1: + mt->vts[VTS1] = CALIB_BUF0_VTS_TS1_V1(buf[0]); + break; + case VTS2: + mt->vts[VTS2] = CALIB_BUF0_VTS_TS2_V1(buf[0]); + break; + case VTS3: + mt->vts[VTS3] = CALIB_BUF1_VTS_TS3_V1(buf[1]); + break; + case VTS4: + mt->vts[VTS4] = CALIB_BUF2_VTS_TS4_V1(buf[2]); + break; + case VTS5: + mt->vts[VTS5] = CALIB_BUF2_VTS_TS5_V1(buf[2]); + break; + case VTSABB: + mt->vts[VTSABB] = + CALIB_BUF2_VTS_TSABB_V1(buf[2]); + break; + default: + break; + } + } + + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V1(buf[0]); + if (CALIB_BUF1_ID_V1(buf[1]) & + CALIB_BUF0_O_SLOPE_SIGN_V1(buf[0])) + mt->o_slope = -CALIB_BUF0_O_SLOPE_V1(buf[0]); + else + mt->o_slope = CALIB_BUF0_O_SLOPE_V1(buf[0]); + + return 0; +} + +static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf) +{ + if (!CALIB_BUF1_VALID_V2(buf[1])) + return -EINVAL; + + mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]); + mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]); + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]); + mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]); + mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]); + mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]); + mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]); + mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]); + + return 0; +} + +static int mtk_thermal_get_calibration_data(struct device *dev, + struct mtk_thermal *mt) +{ + struct nvmem_cell *cell; + u32 *buf; + size_t len; + int i, ret = 0; + + /* Start with default values */ + mt->adc_ge = 512; + for (i = 0; i < mt->conf->num_sensors; i++) + mt->vts[i] = 260; + mt->degc_cali = 40; + mt->o_slope = 0; + + cell = nvmem_cell_get(dev, "calibration-data"); + if (IS_ERR(cell)) { + if (PTR_ERR(cell) == -EPROBE_DEFER) + return PTR_ERR(cell); + return 0; + } + + buf = (u32 *)nvmem_cell_read(cell, &len); + + nvmem_cell_put(cell); + + if (IS_ERR(buf)) + return PTR_ERR(buf); + + if (len < 3 * sizeof(u32)) { + dev_warn(dev, "invalid calibration data\n"); + ret = -EINVAL; + goto out; + } + + if (mt->conf->version == MTK_THERMAL_V1) + ret = mtk_thermal_extract_efuse_v1(mt, buf); + else + ret = mtk_thermal_extract_efuse_v2(mt, buf); + + if (ret) { + dev_info(dev, "Device not calibrated, using default calibration values\n"); + ret = 0; + } + +out: + kfree(buf); + + return ret; +} + +static const struct of_device_id mtk_thermal_of_match[] = { + { + .compatible = "mediatek,mt8173-thermal", + .data = (void *)&mt8173_thermal_data, + }, + { + .compatible = "mediatek,mt2701-thermal", + .data = (void *)&mt2701_thermal_data, + }, + { + .compatible = "mediatek,mt2712-thermal", + .data = (void *)&mt2712_thermal_data, + }, + { + .compatible = "mediatek,mt7622-thermal", + .data = (void *)&mt7622_thermal_data, + }, + { + .compatible = "mediatek,mt8183-thermal", + .data = (void *)&mt8183_thermal_data, + }, { + }, +}; +MODULE_DEVICE_TABLE(of, mtk_thermal_of_match); + +static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base) +{ + int tmp; + + tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1); + tmp &= ~(0x37); + tmp |= 0x1; + writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1); + udelay(200); +} + +static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt, + void __iomem *auxadc_base) +{ + int tmp; + + writel(0x800, auxadc_base + AUXADC_CON1_SET_V); + writel(0x1, mt->thermal_base + TEMP_MONCTL0); + tmp = readl(mt->thermal_base + TEMP_MSRCTL1); + writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1); +} + +static int mtk_thermal_probe(struct platform_device *pdev) +{ + int ret, i, ctrl_id; + struct device_node *auxadc, *apmixedsys, *np = pdev->dev.of_node; + struct mtk_thermal *mt; + struct resource *res; + u64 auxadc_phys_base, apmixed_phys_base; + struct thermal_zone_device *tzdev; + void __iomem *apmixed_base, *auxadc_base; + + mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); + if (!mt) + return -ENOMEM; + + mt->conf = of_device_get_match_data(&pdev->dev); + + mt->clk_peri_therm = devm_clk_get(&pdev->dev, "therm"); + if (IS_ERR(mt->clk_peri_therm)) + return PTR_ERR(mt->clk_peri_therm); + + mt->clk_auxadc = devm_clk_get(&pdev->dev, "auxadc"); + if (IS_ERR(mt->clk_auxadc)) + return PTR_ERR(mt->clk_auxadc); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mt->thermal_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mt->thermal_base)) + return PTR_ERR(mt->thermal_base); + + ret = mtk_thermal_get_calibration_data(&pdev->dev, mt); + if (ret) + return ret; + + mutex_init(&mt->lock); + + mt->dev = &pdev->dev; + + auxadc = of_parse_phandle(np, "mediatek,auxadc", 0); + if (!auxadc) { + dev_err(&pdev->dev, "missing auxadc node\n"); + return -ENODEV; + } + + auxadc_base = of_iomap(auxadc, 0); + auxadc_phys_base = of_get_phys_base(auxadc); + + of_node_put(auxadc); + + if (auxadc_phys_base == OF_BAD_ADDR) { + dev_err(&pdev->dev, "Can't get auxadc phys address\n"); + return -EINVAL; + } + + apmixedsys = of_parse_phandle(np, "mediatek,apmixedsys", 0); + if (!apmixedsys) { + dev_err(&pdev->dev, "missing apmixedsys node\n"); + return -ENODEV; + } + + apmixed_base = of_iomap(apmixedsys, 0); + apmixed_phys_base = of_get_phys_base(apmixedsys); + + of_node_put(apmixedsys); + + if (apmixed_phys_base == OF_BAD_ADDR) { + dev_err(&pdev->dev, "Can't get auxadc phys address\n"); + return -EINVAL; + } + + ret = device_reset_optional(&pdev->dev); + if (ret) + return ret; + + ret = clk_prepare_enable(mt->clk_auxadc); + if (ret) { + dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(mt->clk_peri_therm); + if (ret) { + dev_err(&pdev->dev, "Can't enable peri clk: %d\n", ret); + goto err_disable_clk_auxadc; + } + + if (mt->conf->version == MTK_THERMAL_V2) { + mtk_thermal_turn_on_buffer(apmixed_base); + mtk_thermal_release_periodic_ts(mt, auxadc_base); + } + + for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++) + for (i = 0; i < mt->conf->num_banks; i++) + mtk_thermal_init_bank(mt, i, apmixed_phys_base, + auxadc_phys_base, ctrl_id); + + platform_set_drvdata(pdev, mt); + + tzdev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, mt, + &mtk_thermal_ops); + if (IS_ERR(tzdev)) { + ret = PTR_ERR(tzdev); + goto err_disable_clk_peri_therm; + } + + return 0; + +err_disable_clk_peri_therm: + clk_disable_unprepare(mt->clk_peri_therm); +err_disable_clk_auxadc: + clk_disable_unprepare(mt->clk_auxadc); + + return ret; +} + +static int mtk_thermal_remove(struct platform_device *pdev) +{ + struct mtk_thermal *mt = platform_get_drvdata(pdev); + + clk_disable_unprepare(mt->clk_peri_therm); + clk_disable_unprepare(mt->clk_auxadc); + + return 0; +} + +static struct platform_driver mtk_thermal_driver = { + .probe = mtk_thermal_probe, + .remove = mtk_thermal_remove, + .driver = { + .name = "mtk-thermal", + .of_match_table = mtk_thermal_of_match, + }, +}; + +module_platform_driver(mtk_thermal_driver); + +MODULE_AUTHOR("Michael Kao "); +MODULE_AUTHOR("Louis Yu "); +MODULE_AUTHOR("Dawei Chien "); +MODULE_AUTHOR("Sascha Hauer "); +MODULE_AUTHOR("Hanyi Wu "); +MODULE_DESCRIPTION("Mediatek thermal driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c deleted file mode 100644 index 97e8678..0000000 --- a/drivers/thermal/mtk_thermal.c +++ /dev/null @@ -1,1127 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 2015 MediaTek Inc. - * Author: Hanyi Wu - * Sascha Hauer - * Dawei Chien - * Louis Yu - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* AUXADC Registers */ -#define AUXADC_CON1_SET_V 0x008 -#define AUXADC_CON1_CLR_V 0x00c -#define AUXADC_CON2_V 0x010 -#define AUXADC_DATA(channel) (0x14 + (channel) * 4) - -#define APMIXED_SYS_TS_CON1 0x604 - -/* Thermal Controller Registers */ -#define TEMP_MONCTL0 0x000 -#define TEMP_MONCTL1 0x004 -#define TEMP_MONCTL2 0x008 -#define TEMP_MONIDET0 0x014 -#define TEMP_MONIDET1 0x018 -#define TEMP_MSRCTL0 0x038 -#define TEMP_MSRCTL1 0x03c -#define TEMP_AHBPOLL 0x040 -#define TEMP_AHBTO 0x044 -#define TEMP_ADCPNP0 0x048 -#define TEMP_ADCPNP1 0x04c -#define TEMP_ADCPNP2 0x050 -#define TEMP_ADCPNP3 0x0b4 - -#define TEMP_ADCMUX 0x054 -#define TEMP_ADCEN 0x060 -#define TEMP_PNPMUXADDR 0x064 -#define TEMP_ADCMUXADDR 0x068 -#define TEMP_ADCENADDR 0x074 -#define TEMP_ADCVALIDADDR 0x078 -#define TEMP_ADCVOLTADDR 0x07c -#define TEMP_RDCTRL 0x080 -#define TEMP_ADCVALIDMASK 0x084 -#define TEMP_ADCVOLTAGESHIFT 0x088 -#define TEMP_ADCWRITECTRL 0x08c -#define TEMP_MSR0 0x090 -#define TEMP_MSR1 0x094 -#define TEMP_MSR2 0x098 -#define TEMP_MSR3 0x0B8 - -#define TEMP_SPARE0 0x0f0 - -#define TEMP_ADCPNP0_1 0x148 -#define TEMP_ADCPNP1_1 0x14c -#define TEMP_ADCPNP2_1 0x150 -#define TEMP_MSR0_1 0x190 -#define TEMP_MSR1_1 0x194 -#define TEMP_MSR2_1 0x198 -#define TEMP_ADCPNP3_1 0x1b4 -#define TEMP_MSR3_1 0x1B8 - -#define PTPCORESEL 0x400 - -#define TEMP_MONCTL1_PERIOD_UNIT(x) ((x) & 0x3ff) - -#define TEMP_MONCTL2_FILTER_INTERVAL(x) (((x) & 0x3ff) << 16) -#define TEMP_MONCTL2_SENSOR_INTERVAL(x) ((x) & 0x3ff) - -#define TEMP_AHBPOLL_ADC_POLL_INTERVAL(x) (x) - -#define TEMP_ADCWRITECTRL_ADC_PNP_WRITE BIT(0) -#define TEMP_ADCWRITECTRL_ADC_MUX_WRITE BIT(1) - -#define TEMP_ADCVALIDMASK_VALID_HIGH BIT(5) -#define TEMP_ADCVALIDMASK_VALID_POS(bit) (bit) - -/* MT8173 thermal sensors */ -#define MT8173_TS1 0 -#define MT8173_TS2 1 -#define MT8173_TS3 2 -#define MT8173_TS4 3 -#define MT8173_TSABB 4 - -/* AUXADC channel 11 is used for the temperature sensors */ -#define MT8173_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT8173 */ -#define MT8173_NUM_SENSORS 5 - -/* The number of banks in the MT8173 */ -#define MT8173_NUM_ZONES 4 - -/* The number of sensing points per bank */ -#define MT8173_NUM_SENSORS_PER_ZONE 4 - -/* The number of controller in the MT8173 */ -#define MT8173_NUM_CONTROLLER 1 - -/* The calibration coefficient of sensor */ -#define MT8173_CALIBRATION 165 - -/* - * Layout of the fuses providing the calibration data - * These macros could be used for MT8183, MT8173, MT2701, and MT2712. - * MT8183 has 6 sensors and needs 6 VTS calibration data. - * MT8173 has 5 sensors and needs 5 VTS calibration data. - * MT2701 has 3 sensors and needs 3 VTS calibration data. - * MT2712 has 4 sensors and needs 4 VTS calibration data. - */ -#define CALIB_BUF0_VALID_V1 BIT(0) -#define CALIB_BUF1_ADC_GE_V1(x) (((x) >> 22) & 0x3ff) -#define CALIB_BUF0_VTS_TS1_V1(x) (((x) >> 17) & 0x1ff) -#define CALIB_BUF0_VTS_TS2_V1(x) (((x) >> 8) & 0x1ff) -#define CALIB_BUF1_VTS_TS3_V1(x) (((x) >> 0) & 0x1ff) -#define CALIB_BUF2_VTS_TS4_V1(x) (((x) >> 23) & 0x1ff) -#define CALIB_BUF2_VTS_TS5_V1(x) (((x) >> 5) & 0x1ff) -#define CALIB_BUF2_VTS_TSABB_V1(x) (((x) >> 14) & 0x1ff) -#define CALIB_BUF0_DEGC_CALI_V1(x) (((x) >> 1) & 0x3f) -#define CALIB_BUF0_O_SLOPE_V1(x) (((x) >> 26) & 0x3f) -#define CALIB_BUF0_O_SLOPE_SIGN_V1(x) (((x) >> 7) & 0x1) -#define CALIB_BUF1_ID_V1(x) (((x) >> 9) & 0x1) - -/* - * Layout of the fuses providing the calibration data - * These macros could be used for MT7622. - */ -#define CALIB_BUF0_ADC_OE_V2(x) (((x) >> 22) & 0x3ff) -#define CALIB_BUF0_ADC_GE_V2(x) (((x) >> 12) & 0x3ff) -#define CALIB_BUF0_DEGC_CALI_V2(x) (((x) >> 6) & 0x3f) -#define CALIB_BUF0_O_SLOPE_V2(x) (((x) >> 0) & 0x3f) -#define CALIB_BUF1_VTS_TS1_V2(x) (((x) >> 23) & 0x1ff) -#define CALIB_BUF1_VTS_TS2_V2(x) (((x) >> 14) & 0x1ff) -#define CALIB_BUF1_VTS_TSABB_V2(x) (((x) >> 5) & 0x1ff) -#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1) -#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1) - -enum { - VTS1, - VTS2, - VTS3, - VTS4, - VTS5, - VTSABB, - MAX_NUM_VTS, -}; - -enum mtk_thermal_version { - MTK_THERMAL_V1 = 1, - MTK_THERMAL_V2, -}; - -/* MT2701 thermal sensors */ -#define MT2701_TS1 0 -#define MT2701_TS2 1 -#define MT2701_TSABB 2 - -/* AUXADC channel 11 is used for the temperature sensors */ -#define MT2701_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT2701 */ -#define MT2701_NUM_SENSORS 3 - -/* The number of sensing points per bank */ -#define MT2701_NUM_SENSORS_PER_ZONE 3 - -/* The number of controller in the MT2701 */ -#define MT2701_NUM_CONTROLLER 1 - -/* The calibration coefficient of sensor */ -#define MT2701_CALIBRATION 165 - -/* MT2712 thermal sensors */ -#define MT2712_TS1 0 -#define MT2712_TS2 1 -#define MT2712_TS3 2 -#define MT2712_TS4 3 - -/* AUXADC channel 11 is used for the temperature sensors */ -#define MT2712_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT2712 */ -#define MT2712_NUM_SENSORS 4 - -/* The number of sensing points per bank */ -#define MT2712_NUM_SENSORS_PER_ZONE 4 - -/* The number of controller in the MT2712 */ -#define MT2712_NUM_CONTROLLER 1 - -/* The calibration coefficient of sensor */ -#define MT2712_CALIBRATION 165 - -#define MT7622_TEMP_AUXADC_CHANNEL 11 -#define MT7622_NUM_SENSORS 1 -#define MT7622_NUM_ZONES 1 -#define MT7622_NUM_SENSORS_PER_ZONE 1 -#define MT7622_TS1 0 -#define MT7622_NUM_CONTROLLER 1 - -/* The maximum number of banks */ -#define MAX_NUM_ZONES 8 - -/* The calibration coefficient of sensor */ -#define MT7622_CALIBRATION 165 - -/* MT8183 thermal sensors */ -#define MT8183_TS1 0 -#define MT8183_TS2 1 -#define MT8183_TS3 2 -#define MT8183_TS4 3 -#define MT8183_TS5 4 -#define MT8183_TSABB 5 - -/* AUXADC channel is used for the temperature sensors */ -#define MT8183_TEMP_AUXADC_CHANNEL 11 - -/* The total number of temperature sensors in the MT8183 */ -#define MT8183_NUM_SENSORS 6 - -/* The number of banks in the MT8183 */ -#define MT8183_NUM_ZONES 1 - -/* The number of sensing points per bank */ -#define MT8183_NUM_SENSORS_PER_ZONE 6 - -/* The number of controller in the MT8183 */ -#define MT8183_NUM_CONTROLLER 2 - -/* The calibration coefficient of sensor */ -#define MT8183_CALIBRATION 153 - -struct mtk_thermal; - -struct thermal_bank_cfg { - unsigned int num_sensors; - const int *sensors; -}; - -struct mtk_thermal_bank { - struct mtk_thermal *mt; - int id; -}; - -struct mtk_thermal_data { - s32 num_banks; - s32 num_sensors; - s32 auxadc_channel; - const int *vts_index; - const int *sensor_mux_values; - const int *msr; - const int *adcpnp; - const int cali_val; - const int num_controller; - const int *controller_offset; - bool need_switch_bank; - struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; - enum mtk_thermal_version version; -}; - -struct mtk_thermal { - struct device *dev; - void __iomem *thermal_base; - - struct clk *clk_peri_therm; - struct clk *clk_auxadc; - /* lock: for getting and putting banks */ - struct mutex lock; - - /* Calibration values */ - s32 adc_ge; - s32 adc_oe; - s32 degc_cali; - s32 o_slope; - s32 o_slope_sign; - s32 vts[MAX_NUM_VTS]; - - const struct mtk_thermal_data *conf; - struct mtk_thermal_bank banks[MAX_NUM_ZONES]; -}; - -/* MT8183 thermal sensor data */ -static const int mt8183_bank_data[MT8183_NUM_SENSORS] = { - MT8183_TS1, MT8183_TS2, MT8183_TS3, MT8183_TS4, MT8183_TS5, MT8183_TSABB -}; - -static const int mt8183_msr[MT8183_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0_1, TEMP_MSR1_1, TEMP_MSR2_1, TEMP_MSR1, TEMP_MSR0, TEMP_MSR3_1 -}; - -static const int mt8183_adcpnp[MT8183_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0_1, TEMP_ADCPNP1_1, TEMP_ADCPNP2_1, - TEMP_ADCPNP1, TEMP_ADCPNP0, TEMP_ADCPNP3_1 -}; - -static const int mt8183_mux_values[MT8183_NUM_SENSORS] = { 0, 1, 2, 3, 4, 0 }; -static const int mt8183_tc_offset[MT8183_NUM_CONTROLLER] = {0x0, 0x100}; - -static const int mt8183_vts_index[MT8183_NUM_SENSORS] = { - VTS1, VTS2, VTS3, VTS4, VTS5, VTSABB -}; - -/* MT8173 thermal sensor data */ -static const int mt8173_bank_data[MT8173_NUM_ZONES][3] = { - { MT8173_TS2, MT8173_TS3 }, - { MT8173_TS2, MT8173_TS4 }, - { MT8173_TS1, MT8173_TS2, MT8173_TSABB }, - { MT8173_TS2 }, -}; - -static const int mt8173_msr[MT8173_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 -}; - -static const int mt8173_adcpnp[MT8173_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 -}; - -static const int mt8173_mux_values[MT8173_NUM_SENSORS] = { 0, 1, 2, 3, 16 }; -static const int mt8173_tc_offset[MT8173_NUM_CONTROLLER] = { 0x0, }; - -static const int mt8173_vts_index[MT8173_NUM_SENSORS] = { - VTS1, VTS2, VTS3, VTS4, VTSABB -}; - -/* MT2701 thermal sensor data */ -static const int mt2701_bank_data[MT2701_NUM_SENSORS] = { - MT2701_TS1, MT2701_TS2, MT2701_TSABB -}; - -static const int mt2701_msr[MT2701_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0, TEMP_MSR1, TEMP_MSR2 -}; - -static const int mt2701_adcpnp[MT2701_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2 -}; - -static const int mt2701_mux_values[MT2701_NUM_SENSORS] = { 0, 1, 16 }; -static const int mt2701_tc_offset[MT2701_NUM_CONTROLLER] = { 0x0, }; - -static const int mt2701_vts_index[MT2701_NUM_SENSORS] = { - VTS1, VTS2, VTS3 -}; - -/* MT2712 thermal sensor data */ -static const int mt2712_bank_data[MT2712_NUM_SENSORS] = { - MT2712_TS1, MT2712_TS2, MT2712_TS3, MT2712_TS4 -}; - -static const int mt2712_msr[MT2712_NUM_SENSORS_PER_ZONE] = { - TEMP_MSR0, TEMP_MSR1, TEMP_MSR2, TEMP_MSR3 -}; - -static const int mt2712_adcpnp[MT2712_NUM_SENSORS_PER_ZONE] = { - TEMP_ADCPNP0, TEMP_ADCPNP1, TEMP_ADCPNP2, TEMP_ADCPNP3 -}; - -static const int mt2712_mux_values[MT2712_NUM_SENSORS] = { 0, 1, 2, 3 }; -static const int mt2712_tc_offset[MT2712_NUM_CONTROLLER] = { 0x0, }; - -static const int mt2712_vts_index[MT2712_NUM_SENSORS] = { - VTS1, VTS2, VTS3, VTS4 -}; - -/* MT7622 thermal sensor data */ -static const int mt7622_bank_data[MT7622_NUM_SENSORS] = { MT7622_TS1, }; -static const int mt7622_msr[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_MSR0, }; -static const int mt7622_adcpnp[MT7622_NUM_SENSORS_PER_ZONE] = { TEMP_ADCPNP0, }; -static const int mt7622_mux_values[MT7622_NUM_SENSORS] = { 0, }; -static const int mt7622_vts_index[MT7622_NUM_SENSORS] = { VTS1 }; -static const int mt7622_tc_offset[MT7622_NUM_CONTROLLER] = { 0x0, }; - -/* - * The MT8173 thermal controller has four banks. Each bank can read up to - * four temperature sensors simultaneously. The MT8173 has a total of 5 - * temperature sensors. We use each bank to measure a certain area of the - * SoC. Since TS2 is located centrally in the SoC it is influenced by multiple - * areas, hence is used in different banks. - * - * The thermal core only gets the maximum temperature of all banks, so - * the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data, and this indeed needs the temperatures of the individual banks - * for making better decisions. - */ -static const struct mtk_thermal_data mt8173_thermal_data = { - .auxadc_channel = MT8173_TEMP_AUXADC_CHANNEL, - .num_banks = MT8173_NUM_ZONES, - .num_sensors = MT8173_NUM_SENSORS, - .vts_index = mt8173_vts_index, - .cali_val = MT8173_CALIBRATION, - .num_controller = MT8173_NUM_CONTROLLER, - .controller_offset = mt8173_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 2, - .sensors = mt8173_bank_data[0], - }, { - .num_sensors = 2, - .sensors = mt8173_bank_data[1], - }, { - .num_sensors = 3, - .sensors = mt8173_bank_data[2], - }, { - .num_sensors = 1, - .sensors = mt8173_bank_data[3], - }, - }, - .msr = mt8173_msr, - .adcpnp = mt8173_adcpnp, - .sensor_mux_values = mt8173_mux_values, - .version = MTK_THERMAL_V1, -}; - -/* - * The MT2701 thermal controller has one bank, which can read up to - * three temperature sensors simultaneously. The MT2701 has a total of 3 - * temperature sensors. - * - * The thermal core only gets the maximum temperature of this one bank, - * so the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data. - */ -static const struct mtk_thermal_data mt2701_thermal_data = { - .auxadc_channel = MT2701_TEMP_AUXADC_CHANNEL, - .num_banks = 1, - .num_sensors = MT2701_NUM_SENSORS, - .vts_index = mt2701_vts_index, - .cali_val = MT2701_CALIBRATION, - .num_controller = MT2701_NUM_CONTROLLER, - .controller_offset = mt2701_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 3, - .sensors = mt2701_bank_data, - }, - }, - .msr = mt2701_msr, - .adcpnp = mt2701_adcpnp, - .sensor_mux_values = mt2701_mux_values, - .version = MTK_THERMAL_V1, -}; - -/* - * The MT2712 thermal controller has one bank, which can read up to - * four temperature sensors simultaneously. The MT2712 has a total of 4 - * temperature sensors. - * - * The thermal core only gets the maximum temperature of this one bank, - * so the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data. - */ -static const struct mtk_thermal_data mt2712_thermal_data = { - .auxadc_channel = MT2712_TEMP_AUXADC_CHANNEL, - .num_banks = 1, - .num_sensors = MT2712_NUM_SENSORS, - .vts_index = mt2712_vts_index, - .cali_val = MT2712_CALIBRATION, - .num_controller = MT2712_NUM_CONTROLLER, - .controller_offset = mt2712_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 4, - .sensors = mt2712_bank_data, - }, - }, - .msr = mt2712_msr, - .adcpnp = mt2712_adcpnp, - .sensor_mux_values = mt2712_mux_values, - .version = MTK_THERMAL_V1, -}; - -/* - * MT7622 have only one sensing point which uses AUXADC Channel 11 for raw data - * access. - */ -static const struct mtk_thermal_data mt7622_thermal_data = { - .auxadc_channel = MT7622_TEMP_AUXADC_CHANNEL, - .num_banks = MT7622_NUM_ZONES, - .num_sensors = MT7622_NUM_SENSORS, - .vts_index = mt7622_vts_index, - .cali_val = MT7622_CALIBRATION, - .num_controller = MT7622_NUM_CONTROLLER, - .controller_offset = mt7622_tc_offset, - .need_switch_bank = true, - .bank_data = { - { - .num_sensors = 1, - .sensors = mt7622_bank_data, - }, - }, - .msr = mt7622_msr, - .adcpnp = mt7622_adcpnp, - .sensor_mux_values = mt7622_mux_values, - .version = MTK_THERMAL_V2, -}; - -/* - * The MT8183 thermal controller has one bank for the current SW framework. - * The MT8183 has a total of 6 temperature sensors. - * There are two thermal controller to control the six sensor. - * The first one bind 2 sensor, and the other bind 4 sensors. - * The thermal core only gets the maximum temperature of all sensor, so - * the bank concept wouldn't be necessary here. However, the SVS (Smart - * Voltage Scaling) unit makes its decisions based on the same bank - * data, and this indeed needs the temperatures of the individual banks - * for making better decisions. - */ -static const struct mtk_thermal_data mt8183_thermal_data = { - .auxadc_channel = MT8183_TEMP_AUXADC_CHANNEL, - .num_banks = MT8183_NUM_ZONES, - .num_sensors = MT8183_NUM_SENSORS, - .vts_index = mt8183_vts_index, - .cali_val = MT8183_CALIBRATION, - .num_controller = MT8183_NUM_CONTROLLER, - .controller_offset = mt8183_tc_offset, - .need_switch_bank = false, - .bank_data = { - { - .num_sensors = 6, - .sensors = mt8183_bank_data, - }, - }, - - .msr = mt8183_msr, - .adcpnp = mt8183_adcpnp, - .sensor_mux_values = mt8183_mux_values, - .version = MTK_THERMAL_V1, -}; - -/** - * raw_to_mcelsius - convert a raw ADC value to mcelsius - * @mt: The thermal controller - * @sensno: sensor number - * @raw: raw ADC value - * - * This converts the raw ADC value to mcelsius using the SoC specific - * calibration constants - */ -static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw) -{ - s32 tmp; - - raw &= 0xfff; - - tmp = 203450520 << 3; - tmp /= mt->conf->cali_val + mt->o_slope; - tmp /= 10000 + mt->adc_ge; - tmp *= raw - mt->vts[sensno] - 3350; - tmp >>= 3; - - return mt->degc_cali * 500 - tmp; -} - -static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw) -{ - s32 format_1; - s32 format_2; - s32 g_oe; - s32 g_gain; - s32 g_x_roomt; - s32 tmp; - - if (raw == 0) - return 0; - - raw &= 0xfff; - g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12); - g_oe = mt->adc_oe - 512; - format_1 = mt->vts[VTS2] + 3105 - g_oe; - format_2 = (mt->degc_cali * 10) >> 1; - g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain; - - tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt; - tmp = tmp * 10 * 100 / 11; - - if (mt->o_slope_sign == 0) - tmp = tmp / (165 - mt->o_slope); - else - tmp = tmp / (165 + mt->o_slope); - - return (format_2 - tmp) * 100; -} - -/** - * mtk_thermal_get_bank - get bank - * @bank: The bank - * - * The bank registers are banked, we have to select a bank in the - * PTPCORESEL register to access it. - */ -static void mtk_thermal_get_bank(struct mtk_thermal_bank *bank) -{ - struct mtk_thermal *mt = bank->mt; - u32 val; - - if (mt->conf->need_switch_bank) { - mutex_lock(&mt->lock); - - val = readl(mt->thermal_base + PTPCORESEL); - val &= ~0xf; - val |= bank->id; - writel(val, mt->thermal_base + PTPCORESEL); - } -} - -/** - * mtk_thermal_put_bank - release bank - * @bank: The bank - * - * release a bank previously taken with mtk_thermal_get_bank, - */ -static void mtk_thermal_put_bank(struct mtk_thermal_bank *bank) -{ - struct mtk_thermal *mt = bank->mt; - - if (mt->conf->need_switch_bank) - mutex_unlock(&mt->lock); -} - -/** - * mtk_thermal_bank_temperature - get the temperature of a bank - * @bank: The bank - * - * The temperature of a bank is considered the maximum temperature of - * the sensors associated to the bank. - */ -static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) -{ - struct mtk_thermal *mt = bank->mt; - const struct mtk_thermal_data *conf = mt->conf; - int i, temp = INT_MIN, max = INT_MIN; - u32 raw; - - for (i = 0; i < conf->bank_data[bank->id].num_sensors; i++) { - raw = readl(mt->thermal_base + conf->msr[i]); - - if (mt->conf->version == MTK_THERMAL_V1) { - temp = raw_to_mcelsius_v1( - mt, conf->bank_data[bank->id].sensors[i], raw); - } else { - temp = raw_to_mcelsius_v2( - mt, conf->bank_data[bank->id].sensors[i], raw); - } - - /* - * The first read of a sensor often contains very high bogus - * temperature value. Filter these out so that the system does - * not immediately shut down. - */ - if (temp > 200000) - temp = 0; - - if (temp > max) - max = temp; - } - - return max; -} - -static int mtk_read_temp(void *data, int *temperature) -{ - struct mtk_thermal *mt = data; - int i; - int tempmax = INT_MIN; - - for (i = 0; i < mt->conf->num_banks; i++) { - struct mtk_thermal_bank *bank = &mt->banks[i]; - - mtk_thermal_get_bank(bank); - - tempmax = max(tempmax, mtk_thermal_bank_temperature(bank)); - - mtk_thermal_put_bank(bank); - } - - *temperature = tempmax; - - return 0; -} - -static const struct thermal_zone_of_device_ops mtk_thermal_ops = { - .get_temp = mtk_read_temp, -}; - -static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, - u32 apmixed_phys_base, u32 auxadc_phys_base, - int ctrl_id) -{ - struct mtk_thermal_bank *bank = &mt->banks[num]; - const struct mtk_thermal_data *conf = mt->conf; - int i; - - int offset = mt->conf->controller_offset[ctrl_id]; - void __iomem *controller_base = mt->thermal_base + offset; - - bank->id = num; - bank->mt = mt; - - mtk_thermal_get_bank(bank); - - /* bus clock 66M counting unit is 12 * 15.15ns * 256 = 46.540us */ - writel(TEMP_MONCTL1_PERIOD_UNIT(12), controller_base + TEMP_MONCTL1); - - /* - * filt interval is 1 * 46.540us = 46.54us, - * sen interval is 429 * 46.540us = 19.96ms - */ - writel(TEMP_MONCTL2_FILTER_INTERVAL(1) | - TEMP_MONCTL2_SENSOR_INTERVAL(429), - controller_base + TEMP_MONCTL2); - - /* poll is set to 10u */ - writel(TEMP_AHBPOLL_ADC_POLL_INTERVAL(768), - controller_base + TEMP_AHBPOLL); - - /* temperature sampling control, 1 sample */ - writel(0x0, controller_base + TEMP_MSRCTL0); - - /* exceed this polling time, IRQ would be inserted */ - writel(0xffffffff, controller_base + TEMP_AHBTO); - - /* number of interrupts per event, 1 is enough */ - writel(0x0, controller_base + TEMP_MONIDET0); - writel(0x0, controller_base + TEMP_MONIDET1); - - /* - * The MT8173 thermal controller does not have its own ADC. Instead it - * uses AHB bus accesses to control the AUXADC. To do this the thermal - * controller has to be programmed with the physical addresses of the - * AUXADC registers and with the various bit positions in the AUXADC. - * Also the thermal controller controls a mux in the APMIXEDSYS register - * space. - */ - - /* - * this value will be stored to TEMP_PNPMUXADDR (TEMP_SPARE0) - * automatically by hw - */ - writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCMUX); - - /* AHB address for auxadc mux selection */ - writel(auxadc_phys_base + AUXADC_CON1_CLR_V, - controller_base + TEMP_ADCMUXADDR); - - if (mt->conf->version == MTK_THERMAL_V1) { - /* AHB address for pnp sensor mux selection */ - writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, - controller_base + TEMP_PNPMUXADDR); - } - - /* AHB value for auxadc enable */ - writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN); - - /* AHB address for auxadc enable (channel 0 immediate mode selected) */ - writel(auxadc_phys_base + AUXADC_CON1_SET_V, - controller_base + TEMP_ADCENADDR); - - /* AHB address for auxadc valid bit */ - writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), - controller_base + TEMP_ADCVALIDADDR); - - /* AHB address for auxadc voltage output */ - writel(auxadc_phys_base + AUXADC_DATA(conf->auxadc_channel), - controller_base + TEMP_ADCVOLTADDR); - - /* read valid & voltage are at the same register */ - writel(0x0, controller_base + TEMP_RDCTRL); - - /* indicate where the valid bit is */ - writel(TEMP_ADCVALIDMASK_VALID_HIGH | TEMP_ADCVALIDMASK_VALID_POS(12), - controller_base + TEMP_ADCVALIDMASK); - - /* no shift */ - writel(0x0, controller_base + TEMP_ADCVOLTAGESHIFT); - - /* enable auxadc mux write transaction */ - writel(TEMP_ADCWRITECTRL_ADC_MUX_WRITE, - controller_base + TEMP_ADCWRITECTRL); - - for (i = 0; i < conf->bank_data[num].num_sensors; i++) - writel(conf->sensor_mux_values[conf->bank_data[num].sensors[i]], - mt->thermal_base + conf->adcpnp[i]); - - writel((1 << conf->bank_data[num].num_sensors) - 1, - controller_base + TEMP_MONCTL0); - - writel(TEMP_ADCWRITECTRL_ADC_PNP_WRITE | - TEMP_ADCWRITECTRL_ADC_MUX_WRITE, - controller_base + TEMP_ADCWRITECTRL); - - mtk_thermal_put_bank(bank); -} - -static u64 of_get_phys_base(struct device_node *np) -{ - u64 size64; - const __be32 *regaddr_p; - - regaddr_p = of_get_address(np, 0, &size64, NULL); - if (!regaddr_p) - return OF_BAD_ADDR; - - return of_translate_address(np, regaddr_p); -} - -static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf) -{ - int i; - - if (!(buf[0] & CALIB_BUF0_VALID_V1)) - return -EINVAL; - - mt->adc_ge = CALIB_BUF1_ADC_GE_V1(buf[1]); - - for (i = 0; i < mt->conf->num_sensors; i++) { - switch (mt->conf->vts_index[i]) { - case VTS1: - mt->vts[VTS1] = CALIB_BUF0_VTS_TS1_V1(buf[0]); - break; - case VTS2: - mt->vts[VTS2] = CALIB_BUF0_VTS_TS2_V1(buf[0]); - break; - case VTS3: - mt->vts[VTS3] = CALIB_BUF1_VTS_TS3_V1(buf[1]); - break; - case VTS4: - mt->vts[VTS4] = CALIB_BUF2_VTS_TS4_V1(buf[2]); - break; - case VTS5: - mt->vts[VTS5] = CALIB_BUF2_VTS_TS5_V1(buf[2]); - break; - case VTSABB: - mt->vts[VTSABB] = - CALIB_BUF2_VTS_TSABB_V1(buf[2]); - break; - default: - break; - } - } - - mt->degc_cali = CALIB_BUF0_DEGC_CALI_V1(buf[0]); - if (CALIB_BUF1_ID_V1(buf[1]) & - CALIB_BUF0_O_SLOPE_SIGN_V1(buf[0])) - mt->o_slope = -CALIB_BUF0_O_SLOPE_V1(buf[0]); - else - mt->o_slope = CALIB_BUF0_O_SLOPE_V1(buf[0]); - - return 0; -} - -static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf) -{ - if (!CALIB_BUF1_VALID_V2(buf[1])) - return -EINVAL; - - mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]); - mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]); - mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]); - mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]); - mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]); - mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]); - mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]); - mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]); - - return 0; -} - -static int mtk_thermal_get_calibration_data(struct device *dev, - struct mtk_thermal *mt) -{ - struct nvmem_cell *cell; - u32 *buf; - size_t len; - int i, ret = 0; - - /* Start with default values */ - mt->adc_ge = 512; - for (i = 0; i < mt->conf->num_sensors; i++) - mt->vts[i] = 260; - mt->degc_cali = 40; - mt->o_slope = 0; - - cell = nvmem_cell_get(dev, "calibration-data"); - if (IS_ERR(cell)) { - if (PTR_ERR(cell) == -EPROBE_DEFER) - return PTR_ERR(cell); - return 0; - } - - buf = (u32 *)nvmem_cell_read(cell, &len); - - nvmem_cell_put(cell); - - if (IS_ERR(buf)) - return PTR_ERR(buf); - - if (len < 3 * sizeof(u32)) { - dev_warn(dev, "invalid calibration data\n"); - ret = -EINVAL; - goto out; - } - - if (mt->conf->version == MTK_THERMAL_V1) - ret = mtk_thermal_extract_efuse_v1(mt, buf); - else - ret = mtk_thermal_extract_efuse_v2(mt, buf); - - if (ret) { - dev_info(dev, "Device not calibrated, using default calibration values\n"); - ret = 0; - } - -out: - kfree(buf); - - return ret; -} - -static const struct of_device_id mtk_thermal_of_match[] = { - { - .compatible = "mediatek,mt8173-thermal", - .data = (void *)&mt8173_thermal_data, - }, - { - .compatible = "mediatek,mt2701-thermal", - .data = (void *)&mt2701_thermal_data, - }, - { - .compatible = "mediatek,mt2712-thermal", - .data = (void *)&mt2712_thermal_data, - }, - { - .compatible = "mediatek,mt7622-thermal", - .data = (void *)&mt7622_thermal_data, - }, - { - .compatible = "mediatek,mt8183-thermal", - .data = (void *)&mt8183_thermal_data, - }, { - }, -}; -MODULE_DEVICE_TABLE(of, mtk_thermal_of_match); - -static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base) -{ - int tmp; - - tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1); - tmp &= ~(0x37); - tmp |= 0x1; - writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1); - udelay(200); -} - -static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt, - void __iomem *auxadc_base) -{ - int tmp; - - writel(0x800, auxadc_base + AUXADC_CON1_SET_V); - writel(0x1, mt->thermal_base + TEMP_MONCTL0); - tmp = readl(mt->thermal_base + TEMP_MSRCTL1); - writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1); -} - -static int mtk_thermal_probe(struct platform_device *pdev) -{ - int ret, i, ctrl_id; - struct device_node *auxadc, *apmixedsys, *np = pdev->dev.of_node; - struct mtk_thermal *mt; - struct resource *res; - u64 auxadc_phys_base, apmixed_phys_base; - struct thermal_zone_device *tzdev; - void __iomem *apmixed_base, *auxadc_base; - - mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); - if (!mt) - return -ENOMEM; - - mt->conf = of_device_get_match_data(&pdev->dev); - - mt->clk_peri_therm = devm_clk_get(&pdev->dev, "therm"); - if (IS_ERR(mt->clk_peri_therm)) - return PTR_ERR(mt->clk_peri_therm); - - mt->clk_auxadc = devm_clk_get(&pdev->dev, "auxadc"); - if (IS_ERR(mt->clk_auxadc)) - return PTR_ERR(mt->clk_auxadc); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - mt->thermal_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(mt->thermal_base)) - return PTR_ERR(mt->thermal_base); - - ret = mtk_thermal_get_calibration_data(&pdev->dev, mt); - if (ret) - return ret; - - mutex_init(&mt->lock); - - mt->dev = &pdev->dev; - - auxadc = of_parse_phandle(np, "mediatek,auxadc", 0); - if (!auxadc) { - dev_err(&pdev->dev, "missing auxadc node\n"); - return -ENODEV; - } - - auxadc_base = of_iomap(auxadc, 0); - auxadc_phys_base = of_get_phys_base(auxadc); - - of_node_put(auxadc); - - if (auxadc_phys_base == OF_BAD_ADDR) { - dev_err(&pdev->dev, "Can't get auxadc phys address\n"); - return -EINVAL; - } - - apmixedsys = of_parse_phandle(np, "mediatek,apmixedsys", 0); - if (!apmixedsys) { - dev_err(&pdev->dev, "missing apmixedsys node\n"); - return -ENODEV; - } - - apmixed_base = of_iomap(apmixedsys, 0); - apmixed_phys_base = of_get_phys_base(apmixedsys); - - of_node_put(apmixedsys); - - if (apmixed_phys_base == OF_BAD_ADDR) { - dev_err(&pdev->dev, "Can't get auxadc phys address\n"); - return -EINVAL; - } - - ret = device_reset_optional(&pdev->dev); - if (ret) - return ret; - - ret = clk_prepare_enable(mt->clk_auxadc); - if (ret) { - dev_err(&pdev->dev, "Can't enable auxadc clk: %d\n", ret); - return ret; - } - - ret = clk_prepare_enable(mt->clk_peri_therm); - if (ret) { - dev_err(&pdev->dev, "Can't enable peri clk: %d\n", ret); - goto err_disable_clk_auxadc; - } - - if (mt->conf->version == MTK_THERMAL_V2) { - mtk_thermal_turn_on_buffer(apmixed_base); - mtk_thermal_release_periodic_ts(mt, auxadc_base); - } - - for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++) - for (i = 0; i < mt->conf->num_banks; i++) - mtk_thermal_init_bank(mt, i, apmixed_phys_base, - auxadc_phys_base, ctrl_id); - - platform_set_drvdata(pdev, mt); - - tzdev = devm_thermal_zone_of_sensor_register(&pdev->dev, 0, mt, - &mtk_thermal_ops); - if (IS_ERR(tzdev)) { - ret = PTR_ERR(tzdev); - goto err_disable_clk_peri_therm; - } - - return 0; - -err_disable_clk_peri_therm: - clk_disable_unprepare(mt->clk_peri_therm); -err_disable_clk_auxadc: - clk_disable_unprepare(mt->clk_auxadc); - - return ret; -} - -static int mtk_thermal_remove(struct platform_device *pdev) -{ - struct mtk_thermal *mt = platform_get_drvdata(pdev); - - clk_disable_unprepare(mt->clk_peri_therm); - clk_disable_unprepare(mt->clk_auxadc); - - return 0; -} - -static struct platform_driver mtk_thermal_driver = { - .probe = mtk_thermal_probe, - .remove = mtk_thermal_remove, - .driver = { - .name = "mtk-thermal", - .of_match_table = mtk_thermal_of_match, - }, -}; - -module_platform_driver(mtk_thermal_driver); - -MODULE_AUTHOR("Michael Kao "); -MODULE_AUTHOR("Louis Yu "); -MODULE_AUTHOR("Dawei Chien "); -MODULE_AUTHOR("Sascha Hauer "); -MODULE_AUTHOR("Hanyi Wu "); -MODULE_DESCRIPTION("Mediatek thermal driver"); -MODULE_LICENSE("GPL v2"); From patchwork Thu Jun 3 08:18:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ben.Tseng" X-Patchwork-Id: 12296585 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9A71C47082 for ; Thu, 3 Jun 2021 08:20:57 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 88AB4613E3 for ; 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Thu, 03 Jun 2021 01:18:12 -0700 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Jun 2021 01:18:10 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Jun 2021 16:18:08 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 3 Jun 2021 16:18:08 +0800 From: Ben Tseng To: Fan Chen , Zhang Rui , "Daniel Lezcano" , , CC: Eduardo Valentin , Rob Herring , Mark Rutland , Matthias Brugger , , , , , , , Michael Kao , Yu-Chia Chang , "Ben Tseng" Subject: [PATCH v4 2/3] thermal: mediatek: Add LVTS drivers for SoC theraml zones Date: Thu, 3 Jun 2021 16:18:05 +0800 Message-ID: <20210603081806.21154-3-ben.tseng@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210603081806.21154-1-ben.tseng@mediatek.com> References: <20210603081806.21154-1-ben.tseng@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_011820_205373_8899B3FC X-CRM114-Status: GOOD ( 23.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Michael Kao Add a LVTS (Low voltage thermal sensor) driver to report junction temperatures in Mediatek SoC and register the maximum temperature of sensors and each sensor as a thermal zone. Signed-off-by: Yu-Chia Chang Signed-off-by: Michael Kao Signed-off-by: Ben Tseng --- drivers/thermal/mediatek/Kconfig | 10 + drivers/thermal/mediatek/Makefile | 1 + drivers/thermal/mediatek/soc_temp_lvts.c | 1287 ++++++++++++++++++++++++++++++ drivers/thermal/mediatek/soc_temp_lvts.h | 312 ++++++++ 4 files changed, 1610 insertions(+) create mode 100644 drivers/thermal/mediatek/soc_temp_lvts.c create mode 100644 drivers/thermal/mediatek/soc_temp_lvts.h diff --git a/drivers/thermal/mediatek/Kconfig b/drivers/thermal/mediatek/Kconfig index 0351e73..d716d03 100644 --- a/drivers/thermal/mediatek/Kconfig +++ b/drivers/thermal/mediatek/Kconfig @@ -20,4 +20,14 @@ config MTK_SOC_THERMAL configures thermal controllers to collect temperature via AUXADC interface. +config MTK_SOC_THERMAL_LVTS + tristate "LVTS (Low voltage thermal sensor) driver for Mediatek SoCs" + depends on HAS_IOMEM + depends on NVMEM + depends on RESET_TI_SYSCON + help + Enable this option if you want to get SoC temperature + information for Mediatek platforms. This driver + configures LVTS thermal controllers to collect temperatures + via Analog Serial Interface(ASIF). endif diff --git a/drivers/thermal/mediatek/Makefile b/drivers/thermal/mediatek/Makefile index f75313d..16ce166 100644 --- a/drivers/thermal/mediatek/Makefile +++ b/drivers/thermal/mediatek/Makefile @@ -1 +1,2 @@ obj-$(CONFIG_MTK_SOC_THERMAL) += soc_temp.o +obj-$(CONFIG_MTK_SOC_THERMAL_LVTS) += soc_temp_lvts.o diff --git a/drivers/thermal/mediatek/soc_temp_lvts.c b/drivers/thermal/mediatek/soc_temp_lvts.c new file mode 100644 index 0000000..8153eda --- /dev/null +++ b/drivers/thermal/mediatek/soc_temp_lvts.c @@ -0,0 +1,1287 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2020 MediaTek Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "soc_temp_lvts.h" + +/*================================================== + * Definition or macro function + *================================================== + */ +#define STOP_COUNTING_V4 (DEVICE_WRITE | RG_TSFM_CTRL_0 << 8 | 0x00) +#define SET_RG_TSFM_LPDLY_V4 (DEVICE_WRITE | RG_TSFM_CTRL_4 << 8 | 0xA6) +#define SET_COUNTING_WINDOW_20US1_V4 (DEVICE_WRITE | RG_TSFM_CTRL_2 << 8 | 0x00) +#define SET_COUNTING_WINDOW_20US2_V4 (DEVICE_WRITE | RG_TSFM_CTRL_1 << 8 | 0x20) +#define TSV2F_CHOP_CKSEL_AND_TSV2F_EN_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_2 << 8 | 0x84) +#define TSBG_DEM_CKSEL_X_TSBG_CHOP_EN_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_4 << 8 | 0x7C) +#define SET_TS_RSV_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_1 << 8 | 0x8D) +#define SET_TS_EN_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_0 << 8 | 0xF4) +#define TOGGLE_RG_TSV2F_VCO_RST1_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_0 << 8 | 0xFC) +#define TOGGLE_RG_TSV2F_VCO_RST2_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_0 << 8 | 0xF4) + +#define SET_LVTS_AUTO_RCK_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_6 << 8 | 0x01) +#define SELECT_SENSOR_RCK_V4(id) (DEVICE_WRITE | RG_TSV2F_CTRL_5 << 8 | (id)) +#define SET_DEVICE_SINGLE_MODE_V4 (DEVICE_WRITE | RG_TSFM_CTRL_3 << 8 | 0x78) +#define KICK_OFF_RCK_COUNTING_V4 (DEVICE_WRITE | RG_TSFM_CTRL_0 << 8 | 0x02) +#define SET_SENSOR_NO_RCK_V4 (DEVICE_WRITE | RG_TSV2F_CTRL_5 << 8 | 0x10) +#define SET_DEVICE_LOW_POWER_SINGLE_MODE_V4 (DEVICE_WRITE | RG_TSFM_CTRL_3 << 8 | 0xB8) + +#define ENABLE_FEATURE(feature) (lvts_data->feature_bitmap |= (feature)) +#define DISABLE_FEATURE(feature) (lvts_data->feature_bitmap &= (~(feature))) +#define IS_ENABLE(feature) (lvts_data->feature_bitmap & (feature)) + +#define DISABLE_THERMAL_HW_REBOOT (-274000) + +#define CLOCK_26MHZ_CYCLE_NS (38) +#define BUS_ACCESS_US (2) + +#define FEATURE_DEVICE_AUTO_RCK (BIT(0)) +#define FEATURE_CK26M_ACTIVE (BIT(1)) +#define CK26M_ACTIVE (((lvts_data->feature_bitmap & FEATURE_CK26M_ACTIVE) \ + ? 1 : 0) << 30) +#define GET_BASE_ADDR(tc_id) \ + (lvts_data->domain[lvts_data->tc[tc_id].domain_index].base \ + + lvts_data->tc[tc_id].addr_offset) + +#define SET_TC_SPEED_IN_US(pu, gd, fd, sd) \ + { \ + .period_unit = (((pu) * 1000) / (256 * CLOCK_26MHZ_CYCLE_NS)), \ + .group_interval_delay = ((gd) / (pu)), \ + .filter_interval_delay = ((fd) / (pu)), \ + .sensor_interval_delay = ((sd) / (pu)), \ + } + +#define GET_CAL_DATA_BITMASK(index, h, l) \ + (((index) < lvts_data->num_efuse_addr) \ + ? ((lvts_data->efuse[(index)] & GENMASK(h, l)) >> l) \ + : 0) + +#define GET_CAL_DATA_BIT(index, bit) \ + (((index) < lvts_data->num_efuse_addr) \ + ? ((lvts_data->efuse[index] & BIT(bit)) >> (bit)) \ + : 0) + +#define GET_TC_SENSOR_NUM(tc_id) \ + (lvts_data->tc[tc_id].num_sensor) + +#define ONE_SAMPLE (lvts_data->counting_window_us + 2 * BUS_ACCESS_US) + +#define NUM_OF_SAMPLE(tc_id) \ + ((lvts_data->tc[tc_id].hw_filter < LVTS_FILTER_2) ? 1 : \ + ((lvts_data->tc[tc_id].hw_filter > LVTS_FILTER_16_OF_18) ? 1 : \ + ((lvts_data->tc[tc_id].hw_filter == LVTS_FILTER_16_OF_18) ? 18 :\ + ((lvts_data->tc[tc_id].hw_filter == LVTS_FILTER_8_OF_10) ? 10 : \ + (lvts_data->tc[tc_id].hw_filter * 2))))) + +#define PERIOD_UNIT_US(tc_id) \ + ((lvts_data->tc[tc_id].tc_speed.period_unit * 256 * \ + CLOCK_26MHZ_CYCLE_NS) / 1000) +#define FILTER_INT_US(tc_id) \ + (lvts_data->tc[tc_id].tc_speed.filter_interval_delay \ + * PERIOD_UNIT_US(tc_id)) +#define SENSOR_INT_US(tc_id) \ + (lvts_data->tc[tc_id].tc_speed.sensor_interval_delay \ + * PERIOD_UNIT_US(tc_id)) +#define GROUP_INT_US(tc_id) \ + (lvts_data->tc[tc_id].tc_speed.group_interval_delay \ + * PERIOD_UNIT_US(tc_id)) + +#define SENSOR_LATENCY_US(tc_id) \ + ((NUM_OF_SAMPLE(tc_id) - 1) * FILTER_INT_US(tc_id) \ + + NUM_OF_SAMPLE(tc_id) * ONE_SAMPLE) + +#define GROUP_LATENCY_US(tc_id) \ + (GET_TC_SENSOR_NUM(tc_id) * SENSOR_LATENCY_US(tc_id) \ + + (GET_TC_SENSOR_NUM(tc_id) - 1) * SENSOR_INT_US(tc_id) \ + + GROUP_INT_US(tc_id)) + +/*================================================== + * LVTS local common code + *================================================== + */ +static int lvts_raw_to_temp(struct formula_coeff *co, unsigned int msr_raw) +{ + /* This function returns degree mC */ + + int temp; + + temp = (co->a * ((unsigned long long)msr_raw)) >> 14; + temp = temp + co->golden_temp * 500 + co->b; + + return temp; +} + +static unsigned int lvts_temp_to_raw(struct formula_coeff *co, int temp) +{ + unsigned int msr_raw; + + msr_raw = div_s64((s64)((co->golden_temp * 500 + co->b - temp)) << 14, + (-1 * co->a)); + + return msr_raw; +} + +static int lvts_read_all_tc_temperature(struct lvts_data *lvts_data) +{ + struct tc_settings *tc = lvts_data->tc; + unsigned int i, j, s_index, msr_raw; + int max_temp = 0, current_temp; + void __iomem *base; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + for (j = 0; j < tc[i].num_sensor; j++) { + s_index = tc[i].sensor_map[j]; + + msr_raw = readl(LVTSMSR0_0 + base + 0x4 * j) & MRS_RAW_MASK; + current_temp = lvts_raw_to_temp(&lvts_data->coeff, msr_raw); + + if (msr_raw == 0) + current_temp = THERMAL_TEMP_INVALID; + + max_temp = max(max_temp, current_temp); + + lvts_data->sen_data[s_index].msr_raw = msr_raw; + lvts_data->sen_data[s_index].temp = current_temp; + } + } + + return max_temp; +} + +static int soc_temp_lvts_read_temp(void *data, int *temperature) +{ + struct soc_temp_tz *lvts_tz = (struct soc_temp_tz *)data; + struct lvts_data *lvts_data = lvts_tz->lvts_data; + + if (lvts_tz->id == 0) + *temperature = lvts_read_all_tc_temperature(lvts_data); + else if (lvts_tz->id - 1 < lvts_data->num_sensor) + *temperature = lvts_data->sen_data[lvts_tz->id - 1].temp; + else + return -EINVAL; + + return 0; +} + +static const struct thermal_zone_of_device_ops soc_temp_lvts_ops = { + .get_temp = soc_temp_lvts_read_temp, +}; + +static void lvts_write_device(struct lvts_data *lvts_data, unsigned int data, + int tc_id) +{ + void __iomem *base; + + base = GET_BASE_ADDR(tc_id); + + writel(data, LVTS_CONFIG_0 + base); + + usleep_range(5, 15); +} + +static unsigned int lvts_read_device(struct lvts_data *lvts_data, + unsigned int reg_idx, int tc_id) +{ + struct device *dev = lvts_data->dev; + void __iomem *base; + unsigned int data; + int ret; + + base = GET_BASE_ADDR(tc_id); + writel(READ_DEVICE_REG(reg_idx), LVTS_CONFIG_0 + base); + + ret = readl_poll_timeout(LVTS_CONFIG_0 + base, data, + !(data & DEVICE_ACCESS_STARTUS), + 2, 200); + if (ret) + dev_err(dev, + "Error: LVTS %d DEVICE_ACCESS_START didn't ready\n", tc_id); + + data = readl(LVTSRDATA0_0 + base); + + return data; +} + +static void wait_all_tc_sensing_point_idle(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + unsigned int mask, error_code, is_error; + void __iomem *base; + int i, cnt, ret; + + mask = BIT(10) | BIT(7) | BIT(0); + + for (cnt = 0; cnt < 2; cnt++) { + is_error = 0; + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + ret = readl_poll_timeout(LVTSMSRCTL1_0 + base, error_code, + !(error_code & mask), 2, 200); + /* + * Error code + * 000: IDLE + * 001: Write transaction + * 010: Waiting for read after Write + * 011: Disable Continue fetching on Device + * 100: Read transaction + * 101: Set Device special Register for Voltage threshold + * 111: Set TSMCU number for Fetch + */ + error_code = ((error_code & BIT(10)) >> 8) + + ((error_code & BIT(7)) >> 6) + + (error_code & BIT(0)); + + if (ret) + dev_err(dev, + "Error LVTS %d sensing points aren't idle, error_code %d\n", + i, error_code); + + if (error_code != 0) + is_error = 1; + } + + if (is_error == 0) + break; + } +} + +static void lvts_reset(struct lvts_data *lvts_data) +{ + int i; + + for (i = 0; i < lvts_data->num_domain; i++) { + if (lvts_data->domain[i].reset) + reset_control_assert(lvts_data->domain[i].reset); + + if (lvts_data->domain[i].reset) + reset_control_deassert(lvts_data->domain[i].reset); + } +} + +static void device_identification(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + unsigned int i, data; + void __iomem *base; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + + writel(ENABLE_LVTS_CTRL_CLK, LVTSCLKEN_0 + base); + + lvts_write_device(lvts_data, RESET_ALL_DEVICES, i); + + lvts_write_device(lvts_data, READ_BACK_DEVICE_ID, i); + + /* Check LVTS device ID */ + data = (readl(LVTS_ID_0 + base) & GENMASK(7, 0)); + if (data != (0x81 + i)) + dev_err(dev, "LVTS_TC_%d, Device ID should be 0x%x, but 0x%x\n", + i, (0x81 + i), data); + } +} + +static void disable_all_sensing_points(struct lvts_data *lvts_data) +{ + unsigned int i; + void __iomem *base; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + writel(DISABLE_SENSING_POINT, LVTSMONCTL0_0 + base); + } +} + +static void enable_all_sensing_points(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + struct tc_settings *tc = lvts_data->tc; + unsigned int i, num; + void __iomem *base; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + num = tc[i].num_sensor; + + if (num > ALL_SENSING_POINTS) { + dev_err(dev, + "%s, LVTS%d, illegal number of sensors: %d\n", + __func__, i, tc[i].num_sensor); + continue; + } + + writel(ENABLE_SENSING_POINT(num), LVTSMONCTL0_0 + base); + } +} + +static void set_polling_speed(struct lvts_data *lvts_data, int tc_id) +{ + struct device *dev = lvts_data->dev; + struct tc_settings *tc = lvts_data->tc; + unsigned int lvts_mon_ctl_1, lvts_mon_ctl_2; + void __iomem *base; + + base = GET_BASE_ADDR(tc_id); + + lvts_mon_ctl_1 = ((tc[tc_id].tc_speed.group_interval_delay << 20) & GENMASK(29, 20)) | + (tc[tc_id].tc_speed.period_unit & GENMASK(9, 0)); + lvts_mon_ctl_2 = ((tc[tc_id].tc_speed.filter_interval_delay << 16) & GENMASK(25, 16)) | + (tc[tc_id].tc_speed.sensor_interval_delay & GENMASK(9, 0)); + /* + * Clock source of LVTS thermal controller is 26MHz. + * Period unit is a base for all interval delays + * All interval delays must multiply it to convert a setting to time. + * Filter interval delay is a delay between two samples of the same sensor + * Sensor interval delay is a delay between two samples of differnet sensors + * Group interval delay is a delay between different rounds. + * For example: + * If Period unit = C, filter delay = 1, sensor delay = 2, group delay = 1, + * and two sensors, TS1 and TS2, are in a LVTS thermal controller + * and then + * Period unit = C * 1/26M * 256 = 12 * 38.46ns * 256 = 118.149us + * Filter interval delay = 1 * Period unit = 118.149us + * Sensor interval delay = 2 * Period unit = 236.298us + * Group interval delay = 1 * Period unit = 118.149us + * + * TS1 TS1 ... TS1 TS2 TS2 ... TS2 TS1... + * <--> Filter interval delay + * <--> Sensor interval delay + * <--> Group interval delay + */ + writel(lvts_mon_ctl_1, LVTSMONCTL1_0 + base); + writel(lvts_mon_ctl_2, LVTSMONCTL2_0 + base); + + dev_info(dev, "%s %d, LVTSMONCTL1_0= 0x%x,LVTSMONCTL2_0= 0x%x\n", + __func__, tc_id, readl(LVTSMONCTL1_0 + base), + readl(LVTSMONCTL2_0 + base)); +} + +static void set_hw_filter(struct lvts_data *lvts_data, int tc_id) +{ + struct device *dev = lvts_data->dev; + struct tc_settings *tc = lvts_data->tc; + unsigned int option; + void __iomem *base; + + base = GET_BASE_ADDR(tc_id); + option = tc[tc_id].hw_filter & 0x7; + /* hw filter + * 000: Get one sample + * 001: Get 2 samples and average them + * 010: Get 4 samples, drop max and min, then average the rest of 2 samples + * 011: Get 6 samples, drop max and min, then average the rest of 4 samples + * 100: Get 10 samples, drop max and min, then average the rest of 8 samples + * 101: Get 18 samples, drop max and min, then average the rest of 16 samples + */ + option = (option << 9) | (option << 6) | (option << 3) | option; + + writel(option, LVTSMSRCTL0_0 + base); + dev_info(dev, "%s %d, LVTSMSRCTL0_0= 0x%x\n", + __func__, tc_id, readl(LVTSMSRCTL0_0 + base)); +} + +static int get_dominator_index(struct lvts_data *lvts_data, int tc_id) +{ + struct device *dev = lvts_data->dev; + struct tc_settings *tc = lvts_data->tc; + int d_index; + + if (tc[tc_id].dominator_sensing_point == ALL_SENSING_POINTS) { + d_index = ALL_SENSING_POINTS; + } else if (tc[tc_id].dominator_sensing_point < + tc[tc_id].num_sensor){ + d_index = tc[tc_id].dominator_sensing_point; + } else { + dev_err(dev, + "Error: LVTS%d, dominator_sensing_point= %d should smaller than num_sensor= %d\n", + tc_id, tc[tc_id].dominator_sensing_point, + tc[tc_id].num_sensor); + + dev_err(dev, "Use the sensing point 0 as the dominated sensor\n"); + d_index = SENSING_POINT0; + } + + return d_index; +} + +static void disable_hw_reboot_interrupt(struct lvts_data *lvts_data, int tc_id) +{ + unsigned int temp; + void __iomem *base; + + base = GET_BASE_ADDR(tc_id); + + /* LVTS thermal controller has two interrupts for thermal HW reboot + * One is for AP SW and the other is for RGU + * The interrupt of AP SW can turn off by a bit of a register, but + * the other for RGU cannot. + * To prevent rebooting device accidentally, we are going to add + * a huge offset to LVTS and make LVTS always report extremely low + * temperature. + */ + + /* After adding the huge offset 0x3FFF, LVTS alawys adds the + * offset to MSR_RAW. + * When MSR_RAW is larger, SW will convert lower temperature/ + */ + temp = readl(LVTSPROTCTL_0 + base); + writel(temp | 0x3FFF, LVTSPROTCTL_0 + base); + + /* Disable the interrupt of AP SW */ + temp = readl(LVTSMONINT_0 + base); + writel(temp & ~(STAGE3_INT_EN), LVTSMONINT_0 + base); +} + +static void enable_hw_reboot_interrupt(struct lvts_data *lvts_data, int tc_id) +{ + unsigned int temp; + void __iomem *base; + + base = GET_BASE_ADDR(tc_id); + + /* Enable the interrupt of AP SW */ + temp = readl(LVTSMONINT_0 + base); + writel(temp | STAGE3_INT_EN, LVTSMONINT_0 + base); + /* Clear the offset */ + temp = readl(LVTSPROTCTL_0 + base); + writel(temp & ~PROTOFFSET, LVTSPROTCTL_0 + base); +} + +static void set_tc_hw_reboot_threshold(struct lvts_data *lvts_data, + int trip_point, int tc_id) +{ + struct device *dev = lvts_data->dev; + unsigned int msr_raw, temp, config, d_index; + void __iomem *base; + + base = GET_BASE_ADDR(tc_id); + d_index = get_dominator_index(lvts_data, tc_id); + + dev_info(dev, "%s: LVTS%d, the dominator sensing point= %d\n", + __func__, tc_id, d_index); + + disable_hw_reboot_interrupt(lvts_data, tc_id); + + temp = readl(LVTSPROTCTL_0 + base); + if (d_index == ALL_SENSING_POINTS) { + /* Maximum of 4 sensing points */ + config = (0x1 << 16); + writel(config | temp, LVTSPROTCTL_0 + base); + } else { + /* Select protection sensor */ + config = ((d_index << 2) + 0x2) << 16; + writel(config | temp, LVTSPROTCTL_0 + base); + } + + msr_raw = lvts_temp_to_raw(&lvts_data->coeff, trip_point); + writel(msr_raw, LVTSPROTTC_0 + base); + + enable_hw_reboot_interrupt(lvts_data, tc_id); +} + +static void set_all_tc_hw_reboot(struct lvts_data *lvts_data) +{ + struct tc_settings *tc = lvts_data->tc; + int i, trip_point; + + for (i = 0; i < lvts_data->num_tc; i++) { + trip_point = tc[i].hw_reboot_trip_point; + + if (tc[i].num_sensor == 0) + continue; + + if (trip_point == DISABLE_THERMAL_HW_REBOOT) + continue; + + set_tc_hw_reboot_threshold(lvts_data, trip_point, i); + } +} + +static int lvts_init(struct lvts_data *lvts_data) +{ + struct platform_ops *ops = &lvts_data->ops; + struct device *dev = lvts_data->dev; + int ret; + + ret = clk_prepare_enable(lvts_data->clk); + if (ret) { + dev_err(dev, + "Error: Failed to enable lvts controller clock: %d\n", + ret); + return ret; + } + + lvts_reset(lvts_data); + + device_identification(lvts_data); + if (ops->device_enable_and_init) + ops->device_enable_and_init(lvts_data); + + if (IS_ENABLE(FEATURE_DEVICE_AUTO_RCK)) { + if (ops->device_enable_auto_rck) + ops->device_enable_auto_rck(lvts_data); + } else { + if (ops->device_read_count_rc_n) + ops->device_read_count_rc_n(lvts_data); + } + + if (ops->set_cal_data) + ops->set_cal_data(lvts_data); + + disable_all_sensing_points(lvts_data); + wait_all_tc_sensing_point_idle(lvts_data); + if (ops->init_controller) + ops->init_controller(lvts_data); + enable_all_sensing_points(lvts_data); + + set_all_tc_hw_reboot(lvts_data); + + return 0; +} + +static int prepare_calibration_data(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + struct sensor_cal_data *cal_data = &lvts_data->cal_data; + struct platform_ops *ops = &lvts_data->ops; + int i, offset, size; + char buffer[512]; + + cal_data->count_r = devm_kcalloc(dev, lvts_data->num_sensor, + sizeof(*cal_data->count_r), GFP_KERNEL); + if (!cal_data->count_r) + return -ENOMEM; + + cal_data->count_rc = devm_kcalloc(dev, lvts_data->num_sensor, + sizeof(*cal_data->count_rc), GFP_KERNEL); + if (!cal_data->count_rc) + return -ENOMEM; + + if (ops->efuse_to_cal_data) + ops->efuse_to_cal_data(lvts_data); + + cal_data->use_fake_efuse = 1; + if (cal_data->golden_temp != 0) { + cal_data->use_fake_efuse = 0; + } else { + for (i = 0; i < lvts_data->num_sensor; i++) { + if (cal_data->count_r[i] != 0 || + cal_data->count_rc[i] != 0) { + cal_data->use_fake_efuse = 0; + break; + } + } + } + + if (cal_data->use_fake_efuse) { + /* It means all efuse data are equal to 0 */ + dev_err(dev, + "[lvts_cal] This sample is not calibrated, fake !!\n"); + + cal_data->golden_temp = cal_data->default_golden_temp; + for (i = 0; i < lvts_data->num_sensor; i++) { + cal_data->count_r[i] = cal_data->default_count_r; + cal_data->count_rc[i] = cal_data->default_count_rc; + } + } + + lvts_data->coeff.golden_temp = cal_data->golden_temp; + + dev_info(dev, "[lvts_cal] golden_temp = %d\n", cal_data->golden_temp); + + size = sizeof(buffer); + offset = snprintf(buffer, size, "[lvts_cal] num:g_count:g_count_rc "); + for (i = 0; i < lvts_data->num_sensor; i++) + offset += snprintf(buffer + offset, size - offset, "%d:%d:%d ", + i, cal_data->count_r[i], cal_data->count_rc[i]); + + buffer[offset] = '\0'; + dev_info(dev, "%s\n", buffer); + + return 0; +} + +static int get_calibration_data(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + char cell_name[8]; + struct nvmem_cell *cell; + u32 *buf; + size_t len; + int i, j, index = 0, ret; + + lvts_data->efuse = devm_kcalloc(dev, lvts_data->num_efuse_addr, + sizeof(*lvts_data->efuse), GFP_KERNEL); + if (!lvts_data->efuse) + return -ENOMEM; + + for (i = 0; i < lvts_data->num_efuse_block; i++) { + snprintf(cell_name, sizeof(cell_name), "e_data%d", i + 1); + cell = nvmem_cell_get(dev, cell_name); + if (IS_ERR(cell)) { + dev_err(dev, "Error: Failed to get nvmem cell %s\n", cell_name); + return PTR_ERR(cell); + } + + buf = (u32 *)nvmem_cell_read(cell, &len); + nvmem_cell_put(cell); + + if (IS_ERR(buf)) + return PTR_ERR(buf); + + for (j = 0; j < (len / sizeof(u32)); j++) { + if (index >= lvts_data->num_efuse_addr) { + dev_err(dev, "Array efuse is going to overflow"); + kfree(buf); + return -EINVAL; + } + + lvts_data->efuse[index] = buf[j]; + index++; + } + + kfree(buf); + } + + ret = prepare_calibration_data(lvts_data); + + return ret; +} + +static int of_update_lvts_data(struct lvts_data *lvts_data, + struct platform_device *pdev) +{ + struct device *dev = lvts_data->dev; + struct power_domain *domain; + struct resource *res; + unsigned int i; + int ret; + + lvts_data->clk = devm_clk_get(dev, "lvts_clk"); + if (IS_ERR(lvts_data->clk)) + return PTR_ERR(lvts_data->clk); + + domain = devm_kcalloc(dev, lvts_data->num_domain, sizeof(*domain), GFP_KERNEL); + if (!domain) + return -ENOMEM; + + for (i = 0; i < lvts_data->num_domain; i++) { + /* Get base address */ + res = platform_get_resource(pdev, IORESOURCE_MEM, i); + if (!res) { + dev_err(dev, "No IO resource, index %d\n", i); + return -ENXIO; + } + + domain[i].base = devm_ioremap_resource(dev, res); + if (IS_ERR(domain[i].base)) { + dev_err(dev, "Failed to remap io, index %d\n", i); + return PTR_ERR(domain[i].base); + } + + /* Get interrupt number */ + res = platform_get_resource(pdev, IORESOURCE_IRQ, i); + if (!res) { + dev_err(dev, "No irq resource, index %d\n", i); + return -EINVAL; + } + domain[i].irq_num = res->start; + + /* Get reset control */ + domain[i].reset = devm_reset_control_get_by_index(dev, i); + if (IS_ERR(domain[i].reset)) { + dev_err(dev, "Failed to get, index %d\n", i); + return PTR_ERR(domain[i].reset); + } + } + + lvts_data->domain = domain; + + lvts_data->sen_data = devm_kcalloc(dev, lvts_data->num_sensor, + sizeof(*lvts_data->sen_data), GFP_KERNEL); + if (!lvts_data->sen_data) + return -ENOMEM; + + ret = get_calibration_data(lvts_data); + if (ret) + return ret; + + return 0; +} + +static void lvts_device_close(struct lvts_data *lvts_data) +{ + unsigned int i; + void __iomem *base; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + lvts_write_device(lvts_data, RESET_ALL_DEVICES, i); + writel(DISABLE_LVTS_CTRL_CLK, LVTSCLKEN_0 + base); + } +} + +static void lvts_close(struct lvts_data *lvts_data) +{ + disable_all_sensing_points(lvts_data); + wait_all_tc_sensing_point_idle(lvts_data); + lvts_device_close(lvts_data); + clk_disable_unprepare(lvts_data->clk); +} + +static void tc_irq_handler(struct lvts_data *lvts_data, int tc_id) +{ + struct device *dev = lvts_data->dev; + unsigned int ret = 0; + void __iomem *base; + + base = GET_BASE_ADDR(tc_id); + + ret = readl(LVTSMONINTSTS_0 + base); + /* Write back to clear interrupt status */ + writel(ret, LVTSMONINTSTS_0 + base); + + dev_info(dev, "[Thermal IRQ] LVTS thermal controller %d, LVTSMONINTSTS=0x%08x\n", + tc_id, ret); + + if (ret & THERMAL_PROTECTION_STAGE_3) + dev_info(dev, + "[Thermal IRQ]: Thermal protection stage 3 interrupt triggered\n"); +} + +static irqreturn_t irq_handler(int irq, void *dev_id) +{ + struct lvts_data *lvts_data = (struct lvts_data *)dev_id; + struct device *dev = lvts_data->dev; + struct tc_settings *tc = lvts_data->tc; + unsigned int i, *irq_bitmap; + void __iomem *base; + + irq_bitmap = kcalloc(lvts_data->num_domain, sizeof(*irq_bitmap), GFP_ATOMIC); + + if (!irq_bitmap) + return IRQ_NONE; + + for (i = 0; i < lvts_data->num_domain; i++) { + base = lvts_data->domain[i].base; + irq_bitmap[i] = readl(THERMINTST + base); + dev_info(dev, "%s : THERMINTST = 0x%x\n", __func__, irq_bitmap[i]); + } + + for (i = 0; i < lvts_data->num_tc; i++) { + if ((irq_bitmap[tc[i].domain_index] & tc[i].irq_bit) == 0) + tc_irq_handler(lvts_data, i); + } + + kfree(irq_bitmap); + + return IRQ_HANDLED; +} + +static int lvts_register_irq_handler(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + unsigned int i; + int ret; + + for (i = 0; i < lvts_data->num_domain; i++) { + ret = devm_request_irq(dev, lvts_data->domain[i].irq_num, irq_handler, + IRQF_TRIGGER_HIGH, "mtk_lvts", lvts_data); + + if (ret) { + dev_err(dev, "Failed to register LVTS IRQ, ret %d, domain %d irq_num %d\n", + ret, i, lvts_data->domain[i].irq_num); + lvts_close(lvts_data); + return ret; + } + } + + return 0; +} + +static int lvts_register_thermal_zones(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + struct thermal_zone_device *tzdev; + struct soc_temp_tz *lvts_tz; + int i, ret; + + for (i = 0; i < lvts_data->num_sensor + 1; i++) { + lvts_tz = devm_kzalloc(dev, sizeof(*lvts_tz), GFP_KERNEL); + if (!lvts_tz) { + lvts_close(lvts_data); + return -ENOMEM; + } + + lvts_tz->id = i; + lvts_tz->lvts_data = lvts_data; + + tzdev = devm_thermal_zone_of_sensor_register(dev, lvts_tz->id, + lvts_tz, &soc_temp_lvts_ops); + + if (IS_ERR(tzdev)) { + if (lvts_tz->id != 0) + return 0; + + ret = PTR_ERR(tzdev); + dev_err(dev, "Error: Failed to register lvts tz %d, ret = %d\n", + lvts_tz->id, ret); + lvts_close(lvts_data); + return ret; + } + } + + return 0; +} + +static int lvts_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct lvts_data *lvts_data; + int ret; + + lvts_data = (struct lvts_data *)of_device_get_match_data(dev); + + if (!lvts_data) { + dev_err(dev, "Error: Failed to get lvts platform data\n"); + return -ENODATA; + } + + lvts_data->dev = &pdev->dev; + + ret = of_update_lvts_data(lvts_data, pdev); + if (ret) + return ret; + + platform_set_drvdata(pdev, lvts_data); + + ret = lvts_init(lvts_data); + if (ret) + return ret; + + ret = lvts_register_irq_handler(lvts_data); + if (ret) + return ret; + + ret = lvts_register_thermal_zones(lvts_data); + if (ret) + return ret; + + return 0; +} + +static int lvts_remove(struct platform_device *pdev) +{ + struct lvts_data *lvts_data; + + lvts_data = (struct lvts_data *)platform_get_drvdata(pdev); + + lvts_close(lvts_data); + + return 0; +} + +static int lvts_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct lvts_data *lvts_data; + + lvts_data = (struct lvts_data *)platform_get_drvdata(pdev); + + lvts_close(lvts_data); + + return 0; +} + +static int lvts_resume(struct platform_device *pdev) +{ + int ret; + struct lvts_data *lvts_data; + + lvts_data = (struct lvts_data *)platform_get_drvdata(pdev); + + ret = lvts_init(lvts_data); + if (ret) + return ret; + + return 0; +} + +/*================================================== + * LVTS v4 common code + *================================================== + */ +static void device_enable_and_init_v4(struct lvts_data *lvts_data) +{ + unsigned int i; + + for (i = 0; i < lvts_data->num_tc; i++) { + lvts_write_device(lvts_data, STOP_COUNTING_V4, i); + lvts_write_device(lvts_data, SET_RG_TSFM_LPDLY_V4, i); + lvts_write_device(lvts_data, SET_COUNTING_WINDOW_20US1_V4, i); + lvts_write_device(lvts_data, SET_COUNTING_WINDOW_20US2_V4, i); + lvts_write_device(lvts_data, TSV2F_CHOP_CKSEL_AND_TSV2F_EN_V4, i); + lvts_write_device(lvts_data, TSBG_DEM_CKSEL_X_TSBG_CHOP_EN_V4, i); + lvts_write_device(lvts_data, SET_TS_RSV_V4, i); + lvts_write_device(lvts_data, SET_TS_EN_V4, i); + lvts_write_device(lvts_data, TOGGLE_RG_TSV2F_VCO_RST1_V4, i); + lvts_write_device(lvts_data, TOGGLE_RG_TSV2F_VCO_RST2_V4, i); + } + + lvts_data->counting_window_us = 20; +} + +static void device_enable_auto_rck_v4(struct lvts_data *lvts_data) +{ + unsigned int i; + + for (i = 0; i < lvts_data->num_tc; i++) + lvts_write_device(lvts_data, SET_LVTS_AUTO_RCK_V4, i); +} + +static int device_read_count_rc_n_v4(struct lvts_data *lvts_data) +{ + /* Resistor-Capacitor Calibration */ + /* count_RC_N: count RC now */ + struct device *dev = lvts_data->dev; + struct tc_settings *tc = lvts_data->tc; + struct sensor_cal_data *cal_data = &lvts_data->cal_data; + unsigned int offset, size, s_index, data; + void __iomem *base; + int ret, i, j; + char buffer[512]; + + cal_data->count_rc_now = devm_kcalloc(dev, lvts_data->num_sensor, + sizeof(*cal_data->count_rc_now), GFP_KERNEL); + if (!cal_data->count_rc_now) + return -ENOMEM; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + for (j = 0; j < tc[i].num_sensor; j++) { + s_index = tc[i].sensor_map[j]; + + lvts_write_device(lvts_data, SELECT_SENSOR_RCK_V4(j), i); + lvts_write_device(lvts_data, SET_DEVICE_SINGLE_MODE_V4, i); + usleep_range(10, 20); + + lvts_write_device(lvts_data, KICK_OFF_RCK_COUNTING_V4, i); + usleep_range(30, 40); + + ret = readl_poll_timeout(LVTS_CONFIG_0 + base, data, + !(data & DEVICE_SENSING_STATUS), 2, 200); + if (ret) + dev_err(dev, + "Error: LVTS %d DEVICE_SENSING_STATUS didn't ready\n", i); + + data = lvts_read_device(lvts_data, 0x00, i); + + cal_data->count_rc_now[s_index] = (data & GENMASK(23, 0)); + } + + /* Recover Setting for Normal Access on + * temperature fetch + */ + lvts_write_device(lvts_data, SET_SENSOR_NO_RCK_V4, i); + lvts_write_device(lvts_data, SET_DEVICE_LOW_POWER_SINGLE_MODE_V4, i); + } + + size = sizeof(buffer); + offset = snprintf(buffer, size, "[COUNT_RC_NOW] "); + for (i = 0; i < lvts_data->num_sensor; i++) + offset += snprintf(buffer + offset, size - offset, "%d:%d ", + i, cal_data->count_rc_now[i]); + + buffer[offset] = '\0'; + dev_info(dev, "%s\n", buffer); + + return 0; +} + +static void set_calibration_data_v4(struct lvts_data *lvts_data) +{ + struct tc_settings *tc = lvts_data->tc; + struct sensor_cal_data *cal_data = &lvts_data->cal_data; + unsigned int i, j, s_index, e_data; + void __iomem *base; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + + for (j = 0; j < tc[i].num_sensor; j++) { + s_index = tc[i].sensor_map[j]; + if (IS_ENABLE(FEATURE_DEVICE_AUTO_RCK)) + e_data = cal_data->count_r[s_index]; + else + e_data = (((unsigned long long) + cal_data->count_rc_now[s_index]) * + cal_data->count_r[s_index]) >> 14; + + writel(e_data, LVTSEDATA00_0 + base + 0x4 * j); + } + } +} + +static void init_controller_v4(struct lvts_data *lvts_data) +{ + struct device *dev = lvts_data->dev; + unsigned int i; + void __iomem *base; + + for (i = 0; i < lvts_data->num_tc; i++) { + base = GET_BASE_ADDR(i); + + lvts_write_device(lvts_data, SET_DEVICE_LOW_POWER_SINGLE_MODE_V4, i); + + writel(SET_SENSOR_INDEX, LVTSTSSEL_0 + base); + writel(SET_CALC_SCALE_RULES, LVTSCALSCALE_0 + base); + + set_polling_speed(lvts_data, i); + set_hw_filter(lvts_data, i); + + dev_info(dev, "lvts%d: read all %d sensors in %d us, one in %d us\n", + i, GET_TC_SENSOR_NUM(i), GROUP_LATENCY_US(i), SENSOR_LATENCY_US(i)); + } +} + +/*================================================== + * LVTS MT6873 + *================================================== + */ + +#define MT6873_NUM_LVTS (ARRAY_SIZE(mt6873_tc_settings)) + +enum mt6873_lvts_domain { + MT6873_AP_DOMAIN, + MT6873_MCU_DOMAIN, + MT6873_NUM_DOMAIN +}; + +enum mt6873_lvts_sensor_enum { + MT6873_TS1_0, + MT6873_TS1_1, + MT6873_TS2_0, + MT6873_TS2_1, + MT6873_TS3_0, + MT6873_TS3_1, + MT6873_TS3_2, + MT6873_TS3_3, + MT6873_TS4_0, + MT6873_TS4_1, + MT6873_TS5_0, + MT6873_TS5_1, + MT6873_TS6_0, + MT6873_TS6_1, + MT6873_TS7_0, + MT6873_TS7_1, + MT6873_TS7_2, + MT6873_NUM_TS +}; + +static void mt6873_efuse_to_cal_data(struct lvts_data *lvts_data) +{ + struct sensor_cal_data *cal_data = &lvts_data->cal_data; + + cal_data->golden_temp = GET_CAL_DATA_BITMASK(0, 31, 24); + cal_data->count_r[MT6873_TS1_0] = GET_CAL_DATA_BITMASK(1, 23, 0); + cal_data->count_r[MT6873_TS1_1] = GET_CAL_DATA_BITMASK(2, 23, 0); + cal_data->count_r[MT6873_TS2_0] = GET_CAL_DATA_BITMASK(3, 23, 0); + cal_data->count_r[MT6873_TS2_1] = GET_CAL_DATA_BITMASK(4, 23, 0); + cal_data->count_r[MT6873_TS3_0] = GET_CAL_DATA_BITMASK(5, 23, 0); + cal_data->count_r[MT6873_TS3_1] = GET_CAL_DATA_BITMASK(6, 23, 0); + cal_data->count_r[MT6873_TS3_2] = GET_CAL_DATA_BITMASK(7, 23, 0); + cal_data->count_r[MT6873_TS3_3] = GET_CAL_DATA_BITMASK(8, 23, 0); + cal_data->count_r[MT6873_TS4_0] = GET_CAL_DATA_BITMASK(9, 23, 0); + cal_data->count_r[MT6873_TS4_1] = GET_CAL_DATA_BITMASK(10, 23, 0); + cal_data->count_r[MT6873_TS5_0] = GET_CAL_DATA_BITMASK(11, 23, 0); + cal_data->count_r[MT6873_TS5_1] = GET_CAL_DATA_BITMASK(12, 23, 0); + cal_data->count_r[MT6873_TS6_0] = GET_CAL_DATA_BITMASK(13, 23, 0); + cal_data->count_r[MT6873_TS6_1] = GET_CAL_DATA_BITMASK(14, 23, 0); + cal_data->count_r[MT6873_TS7_0] = GET_CAL_DATA_BITMASK(15, 23, 0); + cal_data->count_r[MT6873_TS7_1] = GET_CAL_DATA_BITMASK(16, 23, 0); + cal_data->count_r[MT6873_TS7_2] = GET_CAL_DATA_BITMASK(17, 23, 0); + + cal_data->count_rc[MT6873_TS1_0] = GET_CAL_DATA_BITMASK(21, 23, 0); + + cal_data->count_rc[MT6873_TS2_0] = (GET_CAL_DATA_BITMASK(1, 31, 24) << 16) + + (GET_CAL_DATA_BITMASK(2, 31, 24) << 8) + + GET_CAL_DATA_BITMASK(3, 31, 24); + + cal_data->count_rc[MT6873_TS3_0] = (GET_CAL_DATA_BITMASK(4, 31, 24) << 16) + + (GET_CAL_DATA_BITMASK(5, 31, 24) << 8) + + GET_CAL_DATA_BITMASK(6, 31, 24); + + cal_data->count_rc[MT6873_TS4_0] = (GET_CAL_DATA_BITMASK(7, 31, 24) << 16) + + (GET_CAL_DATA_BITMASK(8, 31, 24) << 8) + + GET_CAL_DATA_BITMASK(9, 31, 24); + + cal_data->count_rc[MT6873_TS5_0] = (GET_CAL_DATA_BITMASK(10, 31, 24) << 16) + + (GET_CAL_DATA_BITMASK(11, 31, 24) << 8) + + GET_CAL_DATA_BITMASK(12, 31, 24); + + cal_data->count_rc[MT6873_TS6_0] = (GET_CAL_DATA_BITMASK(13, 31, 24) << 16) + + (GET_CAL_DATA_BITMASK(14, 31, 24) << 8) + + GET_CAL_DATA_BITMASK(15, 31, 24); + + cal_data->count_rc[MT6873_TS7_0] = (GET_CAL_DATA_BITMASK(16, 31, 24) << 16) + + (GET_CAL_DATA_BITMASK(17, 31, 24) << 8) + + GET_CAL_DATA_BITMASK(18, 31, 24); +} + +static struct tc_settings mt6873_tc_settings[] = { + [0] = { + .domain_index = MT6873_MCU_DOMAIN, + .addr_offset = 0x0, + .num_sensor = 2, + .sensor_map = {MT6873_TS1_0, MT6873_TS1_1}, + .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118), + .hw_filter = LVTS_FILTER_2_OF_4, + .dominator_sensing_point = SENSING_POINT1, + .hw_reboot_trip_point = 117000, + .irq_bit = BIT(3), + }, + [1] = { + .domain_index = MT6873_MCU_DOMAIN, + .addr_offset = 0x100, + .num_sensor = 2, + .sensor_map = {MT6873_TS2_0, MT6873_TS2_1}, + .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118), + .hw_filter = LVTS_FILTER_2_OF_4, + .dominator_sensing_point = SENSING_POINT0, + .hw_reboot_trip_point = 117000, + .irq_bit = BIT(4), + }, + [2] = { + .domain_index = MT6873_MCU_DOMAIN, + .addr_offset = 0x200, + .num_sensor = 4, + .sensor_map = {MT6873_TS3_0, MT6873_TS3_1, MT6873_TS3_2, MT6873_TS3_3}, + .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118), + .hw_filter = LVTS_FILTER_2_OF_4, + .dominator_sensing_point = SENSING_POINT0, + .hw_reboot_trip_point = 117000, + .irq_bit = BIT(5), + }, + [3] = { + .domain_index = MT6873_AP_DOMAIN, + .addr_offset = 0x0, + .num_sensor = 2, + .sensor_map = {MT6873_TS4_0, MT6873_TS4_1}, + .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118), + .hw_filter = LVTS_FILTER_2_OF_4, + .dominator_sensing_point = SENSING_POINT0, + .hw_reboot_trip_point = 117000, + .irq_bit = BIT(3), + }, + [4] = { + .domain_index = MT6873_AP_DOMAIN, + .addr_offset = 0x100, + .num_sensor = 2, + .sensor_map = {MT6873_TS5_0, MT6873_TS5_1}, + .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118), + .hw_filter = LVTS_FILTER_2_OF_4, + .dominator_sensing_point = SENSING_POINT1, + .hw_reboot_trip_point = 117000, + .irq_bit = BIT(4), + }, + [5] = { + .domain_index = MT6873_AP_DOMAIN, + .addr_offset = 0x200, + .num_sensor = 2, + .sensor_map = {MT6873_TS6_0, MT6873_TS6_1}, + .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118), + .hw_filter = LVTS_FILTER_2_OF_4, + .dominator_sensing_point = SENSING_POINT1, + .hw_reboot_trip_point = 117000, + .irq_bit = BIT(5), + }, + [6] = { + .domain_index = MT6873_AP_DOMAIN, + .addr_offset = 0x300, + .num_sensor = 3, + .sensor_map = {MT6873_TS7_0, MT6873_TS7_1, MT6873_TS7_2}, + .tc_speed = SET_TC_SPEED_IN_US(118, 118, 118, 118), + .hw_filter = LVTS_FILTER_2_OF_4, + .dominator_sensing_point = SENSING_POINT2, + .hw_reboot_trip_point = 117000, + .irq_bit = BIT(6), + } +}; + +static struct lvts_data mt6873_lvts_data = { + .num_domain = MT6873_NUM_DOMAIN, + .num_tc = MT6873_NUM_LVTS, + .tc = mt6873_tc_settings, + .num_sensor = MT6873_NUM_TS, + .ops = { + .efuse_to_cal_data = mt6873_efuse_to_cal_data, + .device_enable_and_init = device_enable_and_init_v4, + .device_enable_auto_rck = device_enable_auto_rck_v4, + .device_read_count_rc_n = device_read_count_rc_n_v4, + .set_cal_data = set_calibration_data_v4, + .init_controller = init_controller_v4, + }, + .feature_bitmap = FEATURE_DEVICE_AUTO_RCK, + .num_efuse_addr = 22, + .num_efuse_block = 1, + .cal_data = { + .default_golden_temp = 50, + .default_count_r = 35000, + .default_count_rc = 2750, + }, + .coeff = { + .a = -250460, + .b = 250460, + }, +}; + +/*================================================== + *================================================== + * Support chips + *================================================== + */ +static const struct of_device_id lvts_of_match[] = { + { + .compatible = "mediatek,mt6873-lvts", + .data = (void *)&mt6873_lvts_data, + }, + { + }, +}; +MODULE_DEVICE_TABLE(of, lvts_of_match); +/*==================================================*/ +static struct platform_driver soc_temp_lvts = { + .probe = lvts_probe, + .remove = lvts_remove, + .suspend = lvts_suspend, + .resume = lvts_resume, + .driver = { + .name = "mtk-soc-temp-lvts", + .of_match_table = lvts_of_match, + }, +}; + +module_platform_driver(soc_temp_lvts); +MODULE_AUTHOR("Yu-Chia Chang "); +MODULE_AUTHOR("Michael Kao "); +MODULE_DESCRIPTION("Mediatek soc temperature driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/thermal/mediatek/soc_temp_lvts.h b/drivers/thermal/mediatek/soc_temp_lvts.h new file mode 100644 index 0000000..1d90bde --- /dev/null +++ b/drivers/thermal/mediatek/soc_temp_lvts.h @@ -0,0 +1,312 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2020 MediaTek Inc. + */ + +#ifndef __MTK_SOC_TEMP_LVTS_H__ +#define __MTK_SOC_TEMP_LVTS_H__ + +/* LVTS HW filter settings + * 000: Get one sample + * 001: Get 2 samples and average them + * 010: Get 4 samples, drop max and min, then average the rest of 2 samples + * 011: Get 6 samples, drop max and min, then average the rest of 4 samples + * 100: Get 10 samples, drop max and min, then average the rest of 8 samples + * 101: Get 18 samples, drop max and min, then average the rest of 16 samples + */ +enum lvts_hw_filter { + LVTS_FILTER_1, + LVTS_FILTER_2, + LVTS_FILTER_2_OF_4, + LVTS_FILTER_4_OF_6, + LVTS_FILTER_8_OF_10, + LVTS_FILTER_16_OF_18 +}; + +enum lvts_sensing_point { + SENSING_POINT0, + SENSING_POINT1, + SENSING_POINT2, + SENSING_POINT3, + ALL_SENSING_POINTS +}; + +/*================================================== + * Data structure + *================================================== + */ +struct lvts_data; + +struct speed_settings { + unsigned int period_unit; + unsigned int group_interval_delay; + unsigned int filter_interval_delay; + unsigned int sensor_interval_delay; +}; + +struct tc_settings { + unsigned int domain_index; + unsigned int addr_offset; + unsigned int num_sensor; + unsigned int sensor_map[ALL_SENSING_POINTS]; /* In sensor ID */ + struct speed_settings tc_speed; + /* HW filter setting + * 000: Get one sample + * 001: Get 2 samples and average them + * 010: Get 4 samples, drop max and min, then average the rest of 2 samples + * 011: Get 6 samples, drop max and min, then average the rest of 4 samples + * 100: Get 10 samples, drop max and min, then average the rest of 8 samples + * 101: Get 18 samples, drop max and min, then average the rest of 16 samples + */ + unsigned int hw_filter; + /* Dominator_sensing point is used to select a sensing point + * and reference its temperature to trigger Thermal HW Reboot + * When it is ALL_SENSING_POINTS, it will select all sensing points + */ + int dominator_sensing_point; + int hw_reboot_trip_point; /* -274000: Disable HW reboot */ + unsigned int irq_bit; +}; + +struct formula_coeff { + int a; + int b; + unsigned int golden_temp; +}; + +struct sensor_cal_data { + int use_fake_efuse; /* 1: Use fake efuse, 0: Use real efuse */ + unsigned int golden_temp; + unsigned int *count_r; + unsigned int *count_rc; + unsigned int *count_rc_now; + + unsigned int default_golden_temp; + unsigned int default_count_r; + unsigned int default_count_rc; +}; + +struct platform_ops { + void (*efuse_to_cal_data)(struct lvts_data *lvts_data); + void (*device_enable_and_init)(struct lvts_data *lvts_data); + void (*device_enable_auto_rck)(struct lvts_data *lvts_data); + int (*device_read_count_rc_n)(struct lvts_data *lvts_data); + void (*set_cal_data)(struct lvts_data *lvts_data); + void (*init_controller)(struct lvts_data *lvts_data); +}; + +struct power_domain { + void __iomem *base; /* LVTS base addresses */ + unsigned int irq_num; /* LVTS interrupt numbers */ + struct reset_control *reset; +}; + +struct sensor_data { + int temp; /* Current temperature */ + unsigned int msr_raw; /* MSR raw data from LVTS */ +}; + +struct lvts_data { + struct device *dev; + struct clk *clk; + unsigned int num_domain; + struct power_domain *domain; + + int num_tc; /* Number of LVTS thermal controllers */ + struct tc_settings *tc; + int counting_window_us; /* LVTS device counting window */ + + int num_sensor; /* Number of sensors in this platform */ + struct sensor_data *sen_data; + + struct platform_ops ops; + int feature_bitmap; /* Show what features are enabled */ + + unsigned int num_efuse_addr; + unsigned int *efuse; + unsigned int num_efuse_block; /* Number of contiguous efuse indexes */ + struct sensor_cal_data cal_data; + struct formula_coeff coeff; +}; + +struct soc_temp_tz { + unsigned int id; /* if id is 0, get max temperature of all sensors */ + struct lvts_data *lvts_data; +}; + +struct match_entry { + char chip[32]; + struct lvts_data *lvts_data; +}; + +struct lvts_match_data { + unsigned int hw_version; + struct match_entry *table; + void (*set_up_common_callbacks)(struct lvts_data *lvts_data); + struct list_head node; +}; + +struct lvts_id { + unsigned int hw_version; + char chip[32]; +}; + +/*================================================== + * LVTS device register + *================================================== + */ +#define RG_TSFM_DATA_0 0x00 +#define RG_TSFM_DATA_1 0x01 +#define RG_TSFM_DATA_2 0x02 +#define RG_TSFM_CTRL_0 0x03 +#define RG_TSFM_CTRL_1 0x04 +#define RG_TSFM_CTRL_2 0x05 +#define RG_TSFM_CTRL_3 0x06 +#define RG_TSFM_CTRL_4 0x07 +#define RG_TSV2F_CTRL_0 0x08 +#define RG_TSV2F_CTRL_1 0x09 +#define RG_TSV2F_CTRL_2 0x0A +#define RG_TSV2F_CTRL_3 0x0B +#define RG_TSV2F_CTRL_4 0x0C +#define RG_TSV2F_CTRL_5 0x0D +#define RG_TSV2F_CTRL_6 0x0E +#define RG_TEMP_DATA_0 0x10 +#define RG_TEMP_DATA_1 0x11 +#define RG_TEMP_DATA_2 0x12 +#define RG_TEMP_DATA_3 0x13 +#define RG_RC_DATA_0 0x14 +#define RG_RC_DATA_1 0x15 +#define RG_RC_DATA_2 0x16 +#define RG_RC_DATA_3 0x17 +#define RG_DIV_DATA_0 0x18 +#define RG_DIV_DATA_1 0x19 +#define RG_DIV_DATA_2 0x1A +#define RG_DIV_DATA_3 0x1B +#define RG_TST_DATA_0 0x70 +#define RG_TST_DATA_1 0x71 +#define RG_TST_DATA_2 0x72 +#define RG_TST_CTRL 0x73 +#define RG_DBG_FQMTR 0xF0 +#define RG_DBG_LPSEQ 0xF1 +#define RG_DBG_STATE 0xF2 +#define RG_DBG_CHKSUM 0xF3 +#define RG_DID_LVTS 0xFC +#define RG_DID_REV 0xFD +#define RG_TSFM_RST 0xFF +/*================================================== + * LVTS controller register + *================================================== + */ +#define LVTSMONCTL0_0 0x000 +#define LVTS_SINGLE_SENSE BIT(9) +#define ENABLE_SENSING_POINT(num) (LVTS_SINGLE_SENSE | GENMASK(((num) - 1), 0)) +#define DISABLE_SENSING_POINT (LVTS_SINGLE_SENSE | 0x0) +#define LVTSMONCTL1_0 0x004 +#define LVTSMONCTL2_0 0x008 +#define LVTSMONINT_0 0x00C +#define STAGE3_INT_EN BIT(31) +#define LVTSMONINTSTS_0 0x010 +#define LVTSMONIDET0_0 0x014 +#define LVTSMONIDET1_0 0x018 +#define LVTSMONIDET2_0 0x01C +#define LVTSMONIDET3_0 0x020 +#define LVTSH2NTHRE_0 0x024 +#define LVTSHTHRE_0 0x028 +#define LVTSCTHRE_0 0x02C +#define LVTSOFFSETH_0 0x030 +#define LVTSOFFSETL_0 0x034 +#define LVTSMSRCTL0_0 0x038 +#define LVTSMSRCTL1_0 0x03C +#define LVTSTSSEL_0 0x040 +#define SET_SENSOR_INDEX 0x13121110 +#define LVTSDEVICETO_0 0x044 +#define LVTSCALSCALE_0 0x048 +#define SET_CALC_SCALE_RULES 0x00000300 +#define LVTS_ID_0 0x04C +#define LVTS_CONFIG_0 0x050 + +#define BROADCAST_ID_UPDATE BIT(26) +#define DEVICE_SENSING_STATUS BIT(25) +#define DEVICE_ACCESS_STARTUS BIT(24) +#define WRITE_ACCESS BIT(16) +#define DEVICE_WRITE (BIT(31) | CK26M_ACTIVE | DEVICE_ACCESS_STARTUS \ + | BIT(17) | WRITE_ACCESS) +#define DEVICE_READ (BIT(31) | CK26M_ACTIVE | DEVICE_ACCESS_STARTUS \ + | 1 << 17) +#define RESET_ALL_DEVICES (DEVICE_WRITE | RG_TSFM_RST << 8 | 0xFF) +#define READ_BACK_DEVICE_ID (BIT(31) | CK26M_ACTIVE | BROADCAST_ID_UPDATE \ + | DEVICE_ACCESS_STARTUS | BIT(17) \ + | RG_DID_LVTS << 8) +#define READ_DEVICE_REG(reg_idx) (DEVICE_READ | (reg_idx) << 8 | 0x00) +#define LVTSEDATA00_0 0x054 +#define LVTSEDATA01_0 0x058 +#define LVTSEDATA02_0 0x05C +#define LVTSEDATA03_0 0x060 +#define LVTSMSR0_0 0x090 +#define MRS_RAW_MASK GENMASK(15, 0) +#define MRS_RAW_VALID_BIT BIT(16) +#define LVTSMSR1_0 0x094 +#define LVTSMSR2_0 0x098 +#define LVTSMSR3_0 0x09C +#define LVTSIMMD0_0 0x0A0 +#define LVTSIMMD1_0 0x0A4 +#define LVTSIMMD2_0 0x0A8 +#define LVTSIMMD3_0 0x0AC +#define LVTSRDATA0_0 0x0B0 +#define LVTSRDATA1_0 0x0B4 +#define LVTSRDATA2_0 0x0B8 +#define LVTSRDATA3_0 0x0BC +#define LVTSPROTCTL_0 0x0C0 +#define PROTOFFSET GENMASK(15, 0) +#define LVTSPROTTA_0 0x0C4 +#define LVTSPROTTB_0 0x0C8 +#define LVTSPROTTC_0 0x0CC +#define LVTSCLKEN_0 0x0E4 +#define ENABLE_LVTS_CTRL_CLK (1) +#define DISABLE_LVTS_CTRL_CLK (0) +#define LVTSDBGSEL_0 0x0E8 +#define LVTSDBGSIG_0 0x0EC +#define LVTSSPARE0_0 0x0F0 +#define LVTSSPARE1_0 0x0F4 +#define LVTSSPARE2_0 0x0F8 +#define LVTSSPARE3_0 0x0FC + +#define THERMINTST 0xF04 +/*================================================== + * LVTS register mask + *================================================== + */ +#define THERMAL_COLD_INTERRUPT_0 0x00000001 +#define THERMAL_HOT_INTERRUPT_0 0x00000002 +#define THERMAL_LOW_OFFSET_INTERRUPT_0 0x00000004 +#define THERMAL_HIGH_OFFSET_INTERRUPT_0 0x00000008 +#define THERMAL_HOT2NORMAL_INTERRUPT_0 0x00000010 +#define THERMAL_COLD_INTERRUPT_1 0x00000020 +#define THERMAL_HOT_INTERRUPT_1 0x00000040 +#define THERMAL_LOW_OFFSET_INTERRUPT_1 0x00000080 +#define THERMAL_HIGH_OFFSET_INTERRUPT_1 0x00000100 +#define THERMAL_HOT2NORMAL_INTERRUPT_1 0x00000200 +#define THERMAL_COLD_INTERRUPT_2 0x00000400 +#define THERMAL_HOT_INTERRUPT_2 0x00000800 +#define THERMAL_LOW_OFFSET_INTERRUPT_2 0x00001000 +#define THERMAL_HIGH_OFFSET_INTERRUPT_2 0x00002000 +#define THERMAL_HOT2NORMAL_INTERRUPT_2 0x00004000 +#define THERMAL_AHB_TIMEOUT_INTERRUPT 0x00008000 +#define THERMAL_DEVICE_TIMEOUT_INTERRUPT 0x00008000 +#define THERMAL_IMMEDIATE_INTERRUPT_0 0x00010000 +#define THERMAL_IMMEDIATE_INTERRUPT_1 0x00020000 +#define THERMAL_IMMEDIATE_INTERRUPT_2 0x00040000 +#define THERMAL_FILTER_INTERRUPT_0 0x00080000 +#define THERMAL_FILTER_INTERRUPT_1 0x00100000 +#define THERMAL_FILTER_INTERRUPT_2 0x00200000 +#define THERMAL_COLD_INTERRUPT_3 0x00400000 +#define THERMAL_HOT_INTERRUPT_3 0x00800000 +#define THERMAL_LOW_OFFSET_INTERRUPT_3 0x01000000 +#define THERMAL_HIGH_OFFSET_INTERRUPT_3 0x02000000 +#define THERMAL_HOT2NORMAL_INTERRUPT_3 0x04000000 +#define THERMAL_IMMEDIATE_INTERRUPT_3 0x08000000 +#define THERMAL_FILTER_INTERRUPT_3 0x10000000 +#define THERMAL_PROTECTION_STAGE_1 0x20000000 +#define THERMAL_PROTECTION_STAGE_2 0x40000000 +#define THERMAL_PROTECTION_STAGE_3 0x80000000 +#endif /* __MTK_SOC_TEMP_LVTS_H__ */ From patchwork Thu Jun 3 08:18:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Ben.Tseng" X-Patchwork-Id: 12296583 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(p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9XV/8Jr06xQsCKRBhtrwTk5DqXpNiTcB12jwvkjaXM0=; b=QInj9HQi48Ctp3 BzJYWqlIBoNhuuoNezG9O5r2HyR5UYvM3fJDCrkLYbjeMat/6OKw5X474RpPTfHLFpyZ839oYa8/j wZ/wHalCKHvBW3pVGJjpnkdXddmuiQqPBE2ukQbsx3JIO4eFuZNuusu+Ox9buu2YWT6446ZCDEDh/ YnWSuZ6sK0mqnbgh4uHGUksbYEMnGJLfCP14PL7Hc/NXESjC+YT3gDulxx/FzwOgyyaJBqJkIDH+Y IZPzZbYrVBQMLFBQKqCV77rQQXloz1bRWeLEp3lyRMlAUdtcidVFWp+86iiRZBtDGHwcbpJmy44FL 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(envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 295030100; Thu, 03 Jun 2021 01:18:11 -0700 Received: from MTKMBS06N2.mediatek.inc (172.21.101.130) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Jun 2021 01:18:10 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 3 Jun 2021 16:18:08 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 3 Jun 2021 16:18:08 +0800 From: Ben Tseng To: Fan Chen , Zhang Rui , "Daniel Lezcano" , , CC: Eduardo Valentin , Rob Herring , Mark Rutland , Matthias Brugger , , , , , , , Michael Kao , Ben Tseng Subject: [PATCH v4 3/3] dt-bindings: thermal: Add binding document for mt6873 thermal controller Date: Thu, 3 Jun 2021 16:18:06 +0800 Message-ID: <20210603081806.21154-4-ben.tseng@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210603081806.21154-1-ben.tseng@mediatek.com> References: <20210603081806.21154-1-ben.tseng@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210603_011818_382609_02756321 X-CRM114-Status: GOOD ( 16.05 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Michael Kao This patch adds binding document for mt6873 thermal controller. Signed-off-by: Michael Kao Signed-off-by: Ben Tseng Reviewed-by: Rob Herring --- This patch depends on [1]. [1] https://patchwork.kernel.org/project/linux-mediatek/patch/20210524122053.17155-7-chun-jie.chen@mediatek.com/ --- .../bindings/thermal/mediatek-thermal-lvts.yaml | 81 ++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/mediatek-thermal-lvts.yaml diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal-lvts.yaml b/Documentation/devicetree/bindings/thermal/mediatek-thermal-lvts.yaml new file mode 100644 index 0000000..69ffe7b --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/mediatek-thermal-lvts.yaml @@ -0,0 +1,81 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/mediatek-thermal-lvts.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek SoC LVTS thermal controller (DTS) binding + +maintainers: + - Yu-Chia Chang + - Ben Tseng + +properties: + compatible: + const: mediatek,mt6873-lvts + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: lvts_clk + + "#thermal-sensor-cells": + const: 0 + +required: + - "#thermal-sensor-cells" + - compatible + - reg + - interrupts + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include + #include + #include + dts: lvts@1100b000 { + compatible = "mediatek,mt6873-lvts"; + reg = <0x1100b000 0x1000>; + clocks = <&infracfg CLK_INFRA_THERM>; + clock-names = "lvts_clk"; + #thermal-sensor-cells = <0>; + interrupts = ; + }; + + thermal-zones { + cpu_thermal: cpu-thermal { + polling-delay-passive = <0>; + polling-delay = <0>; + + thermal-sensors = <&dts>; + trips { + cpu_alert1: cpu-alert1 { + temperature = <85000>; + hysteresis = <0>; + type = "passive"; + }; + + cpu_crit: cpu-crit { + temperature = <120000>; + hysteresis = <0>; + type = "critical"; + }; + }; + + cooling-maps { + }; + }; + }; +...