From patchwork Fri Jan 18 13:42:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 10770171 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 08B096C5 for ; Fri, 18 Jan 2019 13:44:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E9A34295A4 for ; Fri, 18 Jan 2019 13:44:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DD0EB295A5; Fri, 18 Jan 2019 13:44:04 +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=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,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 1D83F29731 for ; Fri, 18 Jan 2019 13:44:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727790AbfARNnQ (ORCPT ); Fri, 18 Jan 2019 08:43:16 -0500 Received: from mail-wr1-f67.google.com ([209.85.221.67]:37296 "EHLO mail-wr1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727749AbfARNnQ (ORCPT ); Fri, 18 Jan 2019 08:43:16 -0500 Received: by mail-wr1-f67.google.com with SMTP id s12so15134268wrt.4 for ; Fri, 18 Jan 2019 05:43:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wsnUGK4UHoSna5kTVgP08aV1SP3zq1Xo1uh/gsnCFl8=; b=flQ6VtVTEWW2m166wpDStmjiOvQ3K/ZbN8wg2/c8vM4oxscllSsKabuM/UTdSciXqn NXzob1l9h9TlRn3haTULILT5iqT3otsGgjV04fEHuZhWthM52sl+IhNYu+6xKYneAn45 G2vJAtolWHJwEKUU/ksfze1PVdh3qaCdCYIkGv5hNLkRlJV2XyiKIYQK7LeRb3qwdwo3 hTQCpH0DK9NdrN787QZ5jsVKiBmOx0zM8GqCVbUNEsL+bE19od/dB6Efd5bQsTLYkQ8b 6h/Mpt+wPjD/bGhL0QBXGCpCBDaDbySfT1Un96zLEX3foBge/d7KO9f7vtULru9VlREe Oz+A== 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:mime-version:content-transfer-encoding; bh=wsnUGK4UHoSna5kTVgP08aV1SP3zq1Xo1uh/gsnCFl8=; b=M5yN5cFLKJxXvwoUkGacsLFgb7Vy/3ozHncMDrYFCs9kR/qenEg+JgROc2gifYr7/N z4k7w9WipKz2zsOXC44Thf4nuHZjwXBbK40BDm2znfUtPVIgtjy9yRp0p46O0kmBw8Ku WohWQIVwOMWjhxaIEcLtAXyu7M6qOeEl9wOxfhekrURfyyGBKa7pjzt712aUuRYXfmbI 03ow1GwIH+b9XssY9izZAndDz+dz52W6CBO4fjUOaq/8i2Ly6EUhqUHQxLDXaLfvIKvu cd1005OkUcyBLsf2ghqM7hVsIHbTek1j04yUb4Amvf7VStdU84k0QM68SsEJ7UhnKA4x GbMg== X-Gm-Message-State: AJcUukdSGzsz7dmeozdSJQ1f0QKNgfzALbF60bFmFMhzlIvWVNWSTWXM BTlC36jvs8PPOMIg3FNWFWKes18BvxBa6A== X-Google-Smtp-Source: ALg8bN7FnmhIuDR0RReKQBT9JxM5l7Oy4GIn0hLvwU7zvbzZg0KzMKdcFE2X2mxCnjx9/WZXAbzqLw== X-Received: by 2002:adf:8c09:: with SMTP id z9mr16632824wra.301.1547818993411; Fri, 18 Jan 2019 05:43:13 -0800 (PST) Received: from debian-brgl.home ([2a01:cb1d:af:5b00:6d6c:8493:1ab5:dad7]) by smtp.gmail.com with ESMTPSA id a132sm51033934wmh.5.2019.01.18.05.43.11 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 18 Jan 2019 05:43:12 -0800 (PST) From: Bartosz Golaszewski To: Rob Herring , Mark Rutland , Linus Walleij , Dmitry Torokhov , Jacek Anaszewski , Pavel Machek , Lee Jones , Sebastian Reichel , Liam Girdwood , Mark Brown , Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-input@vger.kernel.org, linux-leds@vger.kernel.org, linux-pm@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH 07/13] mfd: max77650: new core mfd driver Date: Fri, 18 Jan 2019 14:42:38 +0100 Message-Id: <20190118134244.22253-8-brgl@bgdev.pl> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190118134244.22253-1-brgl@bgdev.pl> References: <20190118134244.22253-1-brgl@bgdev.pl> MIME-Version: 1.0 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Bartosz Golaszewski Add the core mfd driver for max77650 PMIC. We define five sub-devices for which the drivers will be added in subsequent patches. Signed-off-by: Bartosz Golaszewski --- drivers/mfd/Kconfig | 11 ++ drivers/mfd/Makefile | 1 + drivers/mfd/max77650.c | 212 +++++++++++++++++++++++++++++++++++ include/linux/mfd/max77650.h | 73 ++++++++++++ 4 files changed, 297 insertions(+) create mode 100644 drivers/mfd/max77650.c create mode 100644 include/linux/mfd/max77650.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 8c5dfdce4326..dd4dcd97fe21 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -733,6 +733,17 @@ config MFD_MAX77620 provides common support for accessing the device; additional drivers must be enabled in order to use the functionality of the device. +config MFD_MAX77650 + tristate "Maxim MAX77650/77651 PMIC Support" + depends on I2C + depends on OF || COMPILE_TEST + select MFD_CORE + select REGMAP_I2C + help + Say yes here to add support for Maxim Semiconductor MAX77650 and + MAX77651 Power Management ICs. This is the core multifunction + driver for interacting with the device. + config MFD_MAX77686 tristate "Maxim Semiconductor MAX77686/802 PMIC Support" depends on I2C diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 12980a4ad460..3b912a4015d1 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -151,6 +151,7 @@ obj-$(CONFIG_MFD_DA9150) += da9150-core.o obj-$(CONFIG_MFD_MAX14577) += max14577.o obj-$(CONFIG_MFD_MAX77620) += max77620.o +obj-$(CONFIG_MFD_MAX77650) += max77650.o obj-$(CONFIG_MFD_MAX77686) += max77686.o obj-$(CONFIG_MFD_MAX77693) += max77693.o obj-$(CONFIG_MFD_MAX77843) += max77843.o diff --git a/drivers/mfd/max77650.c b/drivers/mfd/max77650.c new file mode 100644 index 000000000000..9c769570b491 --- /dev/null +++ b/drivers/mfd/max77650.c @@ -0,0 +1,212 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 BayLibre SAS + * Author: Bartosz Golaszewski + * + * Core MFD driver for MAXIM 77650/77651 charger/power-supply. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAX77650_INT_GPI_F_MSK BIT(0) +#define MAX77650_INT_GPI_R_MSK BIT(1) +#define MAX77650_INT_GPI_MSK \ + (MAX77650_INT_GPI_F_MSK | MAX77650_INT_GPI_R_MSK) +#define MAX77650_INT_nEN_F_MSK BIT(2) +#define MAX77650_INT_nEN_R_MSK BIT(3) +#define MAX77650_INT_TJAL1_R_MSK BIT(4) +#define MAX77650_INT_TJAL2_R_MSK BIT(5) +#define MAX77650_INT_DOD_R_MSK BIT(6) + +#define MAX77650_INT_THM_MSK BIT(0) +#define MAX77650_INT_CHG_MSK BIT(1) +#define MAX77650_INT_CHGIN_MSK BIT(2) +#define MAX77650_INT_TJ_REG_MSK BIT(3) +#define MAX77650_INT_CHGIN_CTRL_MSK BIT(4) +#define MAX77650_INT_SYS_CTRL_MSK BIT(5) +#define MAX77650_INT_SYS_CNFG_MSK BIT(6) + +#define MAX77650_INT_GLBL_OFFSET 0 +#define MAX77650_INT_CHG_OFFSET 1 + +#define MAX77650_SBIA_LPM_MASK BIT(5) +#define MAX77650_SBIA_LPM_DISABLED 0x00 + +static const struct mfd_cell max77650_devs[] = { + { + .name = "max77650-regulator", + .of_compatible = "maxim,max77650-regulator", + }, + { + .name = "max77650-charger", + .of_compatible = "maxim,max77650-charger", + }, + { + .name = "max77650-gpio", + .of_compatible = "maxim,max77650-gpio", + }, + { + .name = "max77650-leds", + .of_compatible = "maxim,max77650-leds", + }, + { + .name = "max77650-onkey", + .of_compatible = "maxim,max77650-onkey", + }, +}; + +static const struct regmap_irq max77650_irqs[] = { + [MAX77650_INT_GPI] = { + .reg_offset = MAX77650_INT_GLBL_OFFSET, + .mask = MAX77650_INT_GPI_MSK, + .type = { + .type_falling_val = MAX77650_INT_GPI_F_MSK, + .type_rising_val = MAX77650_INT_GPI_R_MSK, + .types_supported = IRQ_TYPE_EDGE_BOTH, + }, + }, + [MAX77650_INT_nEN_F] = { + .reg_offset = MAX77650_INT_GLBL_OFFSET, + .mask = MAX77650_INT_nEN_F_MSK, + }, + [MAX77650_INT_nEN_R] = { + .reg_offset = MAX77650_INT_GLBL_OFFSET, + .mask = MAX77650_INT_nEN_R_MSK, + }, + [MAX77650_INT_TJAL1_R] = { + .reg_offset = MAX77650_INT_GLBL_OFFSET, + .mask = MAX77650_INT_TJAL1_R_MSK, + }, + [MAX77650_INT_TJAL2_R] = { + .reg_offset = MAX77650_INT_GLBL_OFFSET, + .mask = MAX77650_INT_TJAL2_R_MSK, + }, + [MAX77650_INT_DOD_R] = { + .reg_offset = MAX77650_INT_GLBL_OFFSET, + .mask = MAX77650_INT_DOD_R_MSK, + }, + [MAX77650_INT_THM] = { + .reg_offset = MAX77650_INT_CHG_OFFSET, + .mask = MAX77650_INT_THM_MSK, + }, + [MAX77650_INT_CHG] = { + .reg_offset = MAX77650_INT_CHG_OFFSET, + .mask = MAX77650_INT_CHG_MSK, + }, + [MAX77650_INT_CHGIN] = { + .reg_offset = MAX77650_INT_CHG_OFFSET, + .mask = MAX77650_INT_CHGIN_MSK, + }, + [MAX77650_INT_TJ_REG] = { + .reg_offset = MAX77650_INT_CHG_OFFSET, + .mask = MAX77650_INT_TJ_REG_MSK, + }, + [MAX77650_INT_CHGIN_CTRL] = { + .reg_offset = MAX77650_INT_CHG_OFFSET, + .mask = MAX77650_INT_CHGIN_CTRL_MSK, + }, + [MAX77650_INT_SYS_CTRL] = { + .reg_offset = MAX77650_INT_CHG_OFFSET, + .mask = MAX77650_INT_SYS_CTRL_MSK, + }, + [MAX77650_INT_SYS_CNFG] = { + .reg_offset = MAX77650_INT_CHG_OFFSET, + .mask = MAX77650_INT_SYS_CNFG_MSK, + }, +}; + +static struct regmap_irq_chip max77650_irq_chip = { + .name = "max77650-irq", + .irqs = max77650_irqs, + .num_irqs = ARRAY_SIZE(max77650_irqs), + .num_regs = 2, + .status_base = MAX77650_REG_INT_GLBL, + .mask_base = MAX77650_REG_INTM_GLBL, + .type_in_mask = true, + .type_invert = true, + .init_ack_masked = true, + .clear_on_unmask = true, +}; + +static const struct regmap_config max77650_regmap_config = { + .name = "max77650", + .reg_bits = 8, + .val_bits = 8, +}; + +static int max77650_i2c_probe(struct i2c_client *i2c) +{ + struct regmap_irq_chip_data *irq_data; + struct device *dev = &i2c->dev; + struct regmap *map; + unsigned int val; + int rv; + + map = devm_regmap_init_i2c(i2c, &max77650_regmap_config); + if (IS_ERR(map)) + return PTR_ERR(map); + + rv = regmap_read(map, MAX77650_REG_CID, &val); + if (rv) + return rv; + + switch (MAX77650_CID_BITS(val)) { + case MAX77650_CID_77650A: + case MAX77650_CID_77650C: + case MAX77650_CID_77651A: + case MAX77650_CID_77651B: + break; + default: + return -ENODEV; + } + + /* + * This IC has a low-power mode which reduces the quiescent current + * consumption to ~5.6uA but is only suitable for systems consuming + * less than ~2mA. Since this is not likely the case even on + * linux-based wearables - keep the chip in normal power mode. + */ + rv = regmap_update_bits(map, + MAX77650_REG_CNFG_GLBL, + MAX77650_SBIA_LPM_MASK, + MAX77650_SBIA_LPM_DISABLED); + if (rv) + return rv; + + max77650_irq_chip.irq_drv_data = map; + rv = devm_regmap_add_irq_chip(dev, map, i2c->irq, + IRQF_ONESHOT | IRQF_SHARED, + -1, &max77650_irq_chip, &irq_data); + if (rv) + return rv; + + i2c_set_clientdata(i2c, irq_data); + + return devm_mfd_add_devices(dev, -1, max77650_devs, + ARRAY_SIZE(max77650_devs), NULL, 0, NULL); +} + +static const struct of_device_id max77650_of_match[] = { + { .compatible = "maxim,max77650", }, +}; + +static struct i2c_driver max77650_i2c_driver = { + .driver = { + .name = "max77650", + .of_match_table = of_match_ptr(max77650_of_match), + }, + .probe_new = max77650_i2c_probe, +}; +module_i2c_driver(max77650_i2c_driver); + +MODULE_DESCRIPTION("MAXIM 77650/77651 multi-function core driver"); +MODULE_AUTHOR("Bartosz Golaszewski "); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/max77650.h b/include/linux/mfd/max77650.h new file mode 100644 index 000000000000..841bbccdd5ad --- /dev/null +++ b/include/linux/mfd/max77650.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2018 BayLibre SAS + * Author: Bartosz Golaszewski + * + * Common definitions for MAXIM 77650/77651 charger/power-supply. + */ + +#ifndef MAX77650_H +#define MAX77650_H + +#include + +#define MAX77650_REG_INT_GLBL 0x00 +#define MAX77650_REG_INT_CHG 0x01 +#define MAX77650_REG_STAT_CHG_A 0x02 +#define MAX77650_REG_STAT_CHG_B 0x03 +#define MAX77650_REG_ERCFLAG 0x04 +#define MAX77650_REG_STAT_GLBL 0x05 +#define MAX77650_REG_INTM_GLBL 0x06 +#define MAX77650_REG_INTM_CHG 0x07 +#define MAX77650_REG_CNFG_GLBL 0x10 +#define MAX77650_REG_CID 0x11 +#define MAX77650_REG_CNFG_GPIO 0x12 +#define MAX77650_REG_CNFG_CHG_A 0x18 +#define MAX77650_REG_CNFG_CHG_B 0x19 +#define MAX77650_REG_CNFG_CHG_C 0x1a +#define MAX77650_REG_CNFG_CHG_D 0x1b +#define MAX77650_REG_CNFG_CHG_E 0x1c +#define MAX77650_REG_CNFG_CHG_F 0x1d +#define MAX77650_REG_CNFG_CHG_G 0x1e +#define MAX77650_REG_CNFG_CHG_H 0x1f +#define MAX77650_REG_CNFG_CHG_I 0x20 +#define MAX77650_REG_CNFG_SBB_TOP 0x28 +#define MAX77650_REG_CNFG_SBB0_A 0x29 +#define MAX77650_REG_CNFG_SBB0_B 0x2a +#define MAX77650_REG_CNFG_SBB1_A 0x2b +#define MAX77650_REG_CNFG_SBB1_B 0x2c +#define MAX77650_REG_CNFG_SBB2_A 0x2d +#define MAX77650_REG_CNFG_SBB2_B 0x2e +#define MAX77650_REG_CNFG_LDO_A 0x38 +#define MAX77650_REG_CNFG_LDO_B 0x39 +#define MAX77650_REG_CNFG_LED0_A 0x40 +#define MAX77650_REG_CNFG_LED1_A 0x41 +#define MAX77650_REG_CNFG_LED2_A 0x42 +#define MAX77650_REG_CNFG_LED0_B 0x43 +#define MAX77650_REG_CNFG_LED1_B 0x44 +#define MAX77650_REG_CNFG_LED2_B 0x45 +#define MAX77650_REG_CNFG_LED_TOP 0x46 + +#define MAX77650_CID_MASK GENMASK(3, 0) +#define MAX77650_CID_BITS(_reg) (_reg & MAX77650_CID_MASK) + +#define MAX77650_CID_77650A 0x03 +#define MAX77650_CID_77650C 0x0a +#define MAX77650_CID_77651A 0x06 +#define MAX77650_CID_77651B 0x08 + +#define MAX77650_INT_GPI 0 +#define MAX77650_INT_nEN_F 1 +#define MAX77650_INT_nEN_R 2 +#define MAX77650_INT_TJAL1_R 3 +#define MAX77650_INT_TJAL2_R 4 +#define MAX77650_INT_DOD_R 5 +#define MAX77650_INT_THM 6 +#define MAX77650_INT_CHG 7 +#define MAX77650_INT_CHGIN 8 +#define MAX77650_INT_TJ_REG 9 +#define MAX77650_INT_CHGIN_CTRL 10 +#define MAX77650_INT_SYS_CTRL 11 +#define MAX77650_INT_SYS_CNFG 12 + +#endif /* MAX77650_H */