From patchwork Sat Aug 10 05:28:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yangtao Li X-Patchwork-Id: 11088279 X-Patchwork-Delegate: rui.zhang@intel.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D306714E5 for ; Sat, 10 Aug 2019 05:30:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BEF9120223 for ; Sat, 10 Aug 2019 05:30:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AF49222A68; Sat, 10 Aug 2019 05:30:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3792420223 for ; Sat, 10 Aug 2019 05:30:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725730AbfHJFaA (ORCPT ); Sat, 10 Aug 2019 01:30:00 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:43437 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726165AbfHJF37 (ORCPT ); Sat, 10 Aug 2019 01:29:59 -0400 Received: by mail-pg1-f194.google.com with SMTP id r26so10903559pgl.10; Fri, 09 Aug 2019 22:29:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=/+Vypp949GcHqEyKcL0IQIX2nnfIDii+9qZvEhV9QRs=; b=qb2+3+aAvlwnHlCP2Xkzp0vO5+lpxhwIt29tHwACLZjiEaWeHHtOy+k5OqeJSM82EK A/wNHR5BcT5mi7UnUkyrNAfHfBJcnY86ecuF2XbOfQ15gvfjKCrcUBfQrUS1tXiRNXV1 jclQDEOR4yiDZVGPB69eqFnKhXa2vvBkmc91uLH5SFcApz9Fl7rQ1wchvH7ZJP3rBFr5 Oob/8kSekXKJKsqc04pZKMdXzGqgfG79cV93WFjdUs6qAw08HOwNZyX4eq0xPMrbhrAN kTLoqPepxUoopH4KbYyYfodNfrRczjDlqKv20DxJuxJJR1o043mSIl72yDUZuIEqP5LG RUZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=/+Vypp949GcHqEyKcL0IQIX2nnfIDii+9qZvEhV9QRs=; b=FN3qMfDH6fywyeki5Nj7Y4JqLAHyL8Af78iI5F5iON7taW+NtbTbHcXAgYWwYHX4vt ABHVENCId6UBzHcy3zax9qSs3g/0YJ7cvWTtPG3md6YLTALmT90V7DD0AHjs32OpxV3q xild8Uidv0zZZ+xfii9ieujEtj12MiNtFqQKEOzGRBcl5KdSeofjUCackUL27OyamDZ0 x/y2+uUbknUTpgyd1PKKAjzPP2HYAjr68x/rPna/XexAvpbv4XO9ArFYEZFv9iMZ1Lfx 4OlQhOGcnRV5IrYp4cUZPsvfiqfxXuwPRnM+taEeRpCf8cOK8qwvzD8gjv3avm7aDkgL XNNQ== X-Gm-Message-State: APjAAAWT+alJa7w68R5foV6q9H4btXw90FZG2hkQQNcLfMeStwq/OMC+ iXSaVmPb9tm+kJtWga6P9VQ= X-Google-Smtp-Source: APXvYqwCZdkfHsbnXnHBnBca8U9pGcrxvUpyCmRvFdcutvKvt/oH+EgoT1C/Ajn6NWK2up6ZUgbiFQ== X-Received: by 2002:a65:614a:: with SMTP id o10mr20265723pgv.407.1565414998644; Fri, 09 Aug 2019 22:29:58 -0700 (PDT) Received: from localhost ([202.182.106.211]) by smtp.gmail.com with ESMTPSA id c12sm7848842pfc.22.2019.08.09.22.29.57 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 09 Aug 2019 22:29:57 -0700 (PDT) From: Yangtao Li To: rui.zhang@intel.com, edubezval@gmail.com, daniel.lezcano@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, maxime.ripard@bootlin.com, wens@csie.org, mchehab+samsung@kernel.org, davem@davemloft.net, gregkh@linuxfoundation.org, Jonathan.Cameron@huawei.com, nicolas.ferre@microchip.com Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yangtao Li Subject: [PATCH v5 11/18] thermal: sun8i: add thermal driver for h3 Date: Sat, 10 Aug 2019 05:28:22 +0000 Message-Id: <20190810052829.6032-12-tiny.windzz@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190810052829.6032-1-tiny.windzz@gmail.com> References: <20190810052829.6032-1-tiny.windzz@gmail.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds the support for allwinner h3 thermal sensor. Signed-off-by: Yangtao Li --- drivers/thermal/sun8i_thermal.c | 91 +++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) diff --git a/drivers/thermal/sun8i_thermal.c b/drivers/thermal/sun8i_thermal.c index 47c20c4c69e7..41ce8cdc0546 100644 --- a/drivers/thermal/sun8i_thermal.c +++ b/drivers/thermal/sun8i_thermal.c @@ -27,6 +27,14 @@ #define TEMP_TO_REG 672 #define CALIBRATE_DEFAULT 0x800 +#define SUN8I_THS_CTRL0 0x00 +#define SUN8I_THS_CTRL2 0x40 +#define SUN8I_THS_IC 0x44 +#define SUN8I_THS_IS 0x48 +#define SUN8I_THS_MFC 0x70 +#define SUN8I_THS_TEMP_CALIB 0x74 +#define SUN8I_THS_TEMP_DATA 0x80 + #define SUN50I_THS_CTRL0 0x00 #define SUN50I_H6_THS_ENABLE 0x04 #define SUN50I_H6_THS_PC 0x08 @@ -36,6 +44,10 @@ #define SUN50I_H6_THS_TEMP_CALIB 0xa0 #define SUN50I_H6_THS_TEMP_DATA 0xc0 +#define SUN8I_THS_CTRL0_T_ACQ0(x) (GENMASK(15, 0) & (x)) +#define SUN8I_THS_CTRL2_T_ACQ1(x) ((GENMASK(15, 0) & (x)) << 16) +#define SUN8I_THS_DATA_IRQ_STS(x) BIT(x + 8) + #define SUN50I_THS_CTRL0_T_ACQ(x) ((GENMASK(15, 0) & (x)) << 16) #define SUN50I_THS_FILTER_EN BIT(2) #define SUN50I_THS_FILTER_TYPE(x) (GENMASK(1, 0) & (x)) @@ -121,6 +133,23 @@ static const struct regmap_config config = { .fast_io = true, }; +static int sun8i_h3_irq_ack(struct ths_device *tmdev) +{ + int i, state, ret = 0; + + regmap_read(tmdev->regmap, SUN8I_THS_IS, &state); + + for (i = 0; i < tmdev->chip->sensor_num; i++) { + if (state & SUN8I_THS_DATA_IRQ_STS(i)) { + regmap_write(tmdev->regmap, SUN8I_THS_IS, + SUN8I_THS_DATA_IRQ_STS(i)); + ret |= BIT(i); + } + } + + return ret; +} + static int sun50i_h6_irq_ack(struct ths_device *tmdev) { int i, state, ret = 0; @@ -154,6 +183,26 @@ static irqreturn_t sun8i_irq_thread(int irq, void *data) return IRQ_HANDLED; } +static int sun8i_h3_ths_calibrate(struct ths_device *tmdev, + u16 *caldata, int callen) +{ + int i; + + if (!caldata[0] || callen < 2 * tmdev->chip->sensor_num) + return -EINVAL; + + for (i = 0; i < tmdev->chip->sensor_num; i++) { + int offset = (i % 2) << 4; + + regmap_update_bits(tmdev->regmap, + SUN8I_THS_TEMP_CALIB + (4 * (i >> 1)), + 0xfff << offset, + caldata[i] << offset); + } + + return 0; +} + static int sun50i_h6_ths_calibrate(struct ths_device *tmdev, u16 *caldata, int callen) { @@ -319,6 +368,36 @@ static int sun8i_ths_resource_init(struct ths_device *tmdev) return ret; } +static int sun8i_h3_thermal_init(struct ths_device *tmdev) +{ + int val; + + /* average over 4 samples */ + regmap_write(tmdev->regmap, SUN8I_THS_MFC, + SUN50I_THS_FILTER_EN | + SUN50I_THS_FILTER_TYPE(1)); + /* + * period = (x + 1) * 4096 / clkin; ~10ms + * enable data interrupt + */ + val = GENMASK(7 + tmdev->chip->sensor_num, 8); + regmap_write(tmdev->regmap, SUN8I_THS_IC, + SUN50I_H6_THS_PC_TEMP_PERIOD(58) | val); + /* + * clkin = 24MHz + * T acquire = clkin / (x + 1) + * = 20us + * enable sensor + */ + regmap_write(tmdev->regmap, SUN8I_THS_CTRL0, + SUN8I_THS_CTRL0_T_ACQ0(479)); + val = GENMASK(tmdev->chip->sensor_num - 1, 0); + regmap_write(tmdev->regmap, SUN8I_THS_CTRL2, + SUN8I_THS_CTRL2_T_ACQ1(479) | val); + + return 0; +} + static int sun50i_h6_thermal_init(struct ths_device *tmdev) { int val; @@ -425,6 +504,17 @@ static int sun8i_ths_remove(struct platform_device *pdev) return 0; } +static const struct ths_thermal_chip sun8i_h3_ths = { + .sensor_num = 1, + .offset = -1794, + .scale = -121, + .has_mod_clk = true, + .temp_data_base = SUN8I_THS_TEMP_DATA, + .calibrate = sun8i_h3_ths_calibrate, + .init = sun8i_h3_thermal_init, + .irq_ack = sun8i_h3_irq_ack, +}; + static const struct ths_thermal_chip sun50i_h6_ths = { .sensor_num = 2, .offset = -2794, @@ -437,6 +527,7 @@ static const struct ths_thermal_chip sun50i_h6_ths = { }; static const struct of_device_id of_ths_match[] = { + { .compatible = "allwinner,sun8i-h3-ths", .data = &sun8i_h3_ths }, { .compatible = "allwinner,sun50i-h6-ths", .data = &sun50i_h6_ths }, { /* sentinel */ }, };