From patchwork Tue May 25 10:13:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278297 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 6A00CC47086 for ; Tue, 25 May 2021 10:14:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4497461421 for ; Tue, 25 May 2021 10:14:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230253AbhEYKP2 (ORCPT ); Tue, 25 May 2021 06:15:28 -0400 Received: from mail-lj1-f174.google.com ([209.85.208.174]:37825 "EHLO mail-lj1-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229532AbhEYKP1 (ORCPT ); Tue, 25 May 2021 06:15:27 -0400 Received: by mail-lj1-f174.google.com with SMTP id e2so31042209ljk.4; Tue, 25 May 2021 03:13:56 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=D5d6klbAXAHHpipDjNbY52bLQTN2Lh8bVHSkeMx8zUE=; b=TiIheOoJXFEimDoqkk/zexzTqWCtNUoCQnGxXAGjQvoF91VcFnJY+EzHp3M9iNurUZ 93HsybGvVKsBW+845X8Hlc0lYmTdWQYQ1WzO0VVWRGRcNPp2CDgVHIxJqei6qIJFHnWA d7nDtX/xRIVxga/YNRYtUkOvPCOSL86jA1Cnkg1dkrD46GLawwUDmmcWaNvUR+7Wb0MH KJM1z+QFs3OwTD+5nbW0rk3RB8p5OoEWKYu2vKx3ZQG8vXchdWQkeqYE/N9fddTBHpJv PNtjZfRvrcDJEcGkRG95pkpyXBxZVQbY6abfoTNZMe8F1u9q5t3bF62Cm7CZCoXaSmRy iSuw== X-Gm-Message-State: AOAM531AKZ3I2V1iGjDQQXGTviPxpi6U2y5xaxbiTEkMq3H8zGQeE5bq XWX79k1ytK2qno3iQpldFAg= X-Google-Smtp-Source: ABdhPJyQB1YqiGf4i0eIIdejKwMth3V9NepMex/3BfQ2cMeErbn8NWvxO0QOjDtjYniS+JugynP4Sg== X-Received: by 2002:a2e:8942:: with SMTP id b2mr19667077ljk.488.1621937635314; Tue, 25 May 2021 03:13:55 -0700 (PDT) Received: from localhost.localdomain (dc7vkhyyyyyyyyyyyyycy-3.rev.dnainternet.fi. [2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id t13sm2037343lji.19.2021.05.25.03.13.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:13:54 -0700 (PDT) Date: Tue, 25 May 2021 13:13:47 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 1/9] dt-bindings: mfd: regulator: Drop BD70528 support Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen --- Bah. My heart is bleeding as I personally liked playing with this IC. Still, It makes no sense to waste the time of you guys by maintaining something which is not likely to be used. Please let me know if some of you think the binding is needed. --- .../bindings/mfd/rohm,bd70528-pmic.txt | 102 ------------------ .../regulator/rohm,bd70528-regulator.txt | 68 ------------ 2 files changed, 170 deletions(-) delete mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt delete mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd70528-regulator.txt diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt b/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt deleted file mode 100644 index 386eec06cf08..000000000000 --- a/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt +++ /dev/null @@ -1,102 +0,0 @@ -* ROHM BD70528 Power Management Integrated Circuit bindings - -BD70528MWV is an ultra-low quiescent current general purpose, single-chip, -power management IC for battery-powered portable devices. The IC -integrates 3 ultra-low current consumption buck converters, 3 LDOs and 2 -LED Drivers. Also included are 4 GPIOs, a real-time clock (RTC), a 32kHz -clock gate, high-accuracy VREF for use with an external ADC, flexible -dual-input power path, 10 bit SAR ADC for battery temperature monitor and -1S battery charger with scalable charge currents. - -Required properties: - - compatible : Should be "rohm,bd70528" - - reg : I2C slave address. - - interrupts : The interrupt line the device is connected to. - - interrupt-controller : To indicate BD70528 acts as an interrupt controller. - - #interrupt-cells : Should be 2. Usage is compliant to the 2 cells - variant of ../interrupt-controller/interrupts.txt - - gpio-controller : To indicate BD70528 acts as a GPIO controller. - - #gpio-cells : Should be 2. The first cell is the pin number and - the second cell is used to specify flags. See - ../gpio/gpio.txt for more information. - - #clock-cells : Should be 0. - - regulators: : List of child nodes that specify the regulators. - Please see ../regulator/rohm,bd70528-regulator.txt - -Optional properties: - - clock-output-names : Should contain name for output clock. - -Example: -/* External oscillator */ -osc: oscillator { - compatible = "fixed-clock"; - #clock-cells = <1>; - clock-frequency = <32768>; - clock-output-names = "osc"; -}; - -pmic: pmic@4b { - compatible = "rohm,bd70528"; - reg = <0x4b>; - interrupt-parent = <&gpio1>; - interrupts = <29 IRQ_TYPE_LEVEL_LOW>; - clocks = <&osc 0>; - #clock-cells = <0>; - clock-output-names = "bd70528-32k-out"; - #gpio-cells = <2>; - gpio-controller; - interrupt-controller; - #interrupt-cells = <2>; - - regulators { - buck1: BUCK1 { - regulator-name = "buck1"; - regulator-min-microvolt = <1200000>; - regulator-max-microvolt = <3400000>; - regulator-boot-on; - regulator-ramp-delay = <125>; - }; - buck2: BUCK2 { - regulator-name = "buck2"; - regulator-min-microvolt = <1200000>; - regulator-max-microvolt = <3300000>; - regulator-boot-on; - regulator-ramp-delay = <125>; - }; - buck3: BUCK3 { - regulator-name = "buck3"; - regulator-min-microvolt = <800000>; - regulator-max-microvolt = <1800000>; - regulator-boot-on; - regulator-ramp-delay = <250>; - }; - ldo1: LDO1 { - regulator-name = "ldo1"; - regulator-min-microvolt = <1650000>; - regulator-max-microvolt = <3300000>; - regulator-boot-on; - }; - ldo2: LDO2 { - regulator-name = "ldo2"; - regulator-min-microvolt = <1650000>; - regulator-max-microvolt = <3300000>; - regulator-boot-on; - }; - - ldo3: LDO3 { - regulator-name = "ldo3"; - regulator-min-microvolt = <1650000>; - regulator-max-microvolt = <3300000>; - }; - led_ldo1: LED_LDO1 { - regulator-name = "led_ldo1"; - regulator-min-microvolt = <200000>; - regulator-max-microvolt = <300000>; - }; - led_ldo2: LED_LDO2 { - regulator-name = "led_ldo2"; - regulator-min-microvolt = <200000>; - regulator-max-microvolt = <300000>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd70528-regulator.txt b/Documentation/devicetree/bindings/regulator/rohm,bd70528-regulator.txt deleted file mode 100644 index 698cfc3bc3dd..000000000000 --- a/Documentation/devicetree/bindings/regulator/rohm,bd70528-regulator.txt +++ /dev/null @@ -1,68 +0,0 @@ -ROHM BD70528 Power Management Integrated Circuit regulator bindings - -Required properties: - - regulator-name: should be "buck1", "buck2", "buck3", "ldo1", "ldo2", "ldo3", - "led_ldo1", "led_ldo2" - -List of regulators provided by this controller. BD70528 regulators node -should be sub node of the BD70528 MFD node. See BD70528 MFD bindings at -Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt - -The valid names for BD70528 regulator nodes are: -BUCK1, BUCK2, BUCK3, LDO1, LDO2, LDO3, LED_LDO1, LED_LDO2 - -Optional properties: -- Any optional property defined in bindings/regulator/regulator.txt - -Example: -regulators { - buck1: BUCK1 { - regulator-name = "buck1"; - regulator-min-microvolt = <1200000>; - regulator-max-microvolt = <3400000>; - regulator-boot-on; - regulator-ramp-delay = <125>; - }; - buck2: BUCK2 { - regulator-name = "buck2"; - regulator-min-microvolt = <1200000>; - regulator-max-microvolt = <3300000>; - regulator-boot-on; - regulator-ramp-delay = <125>; - }; - buck3: BUCK3 { - regulator-name = "buck3"; - regulator-min-microvolt = <800000>; - regulator-max-microvolt = <1800000>; - regulator-boot-on; - regulator-ramp-delay = <250>; - }; - ldo1: LDO1 { - regulator-name = "ldo1"; - regulator-min-microvolt = <1650000>; - regulator-max-microvolt = <3300000>; - regulator-boot-on; - }; - ldo2: LDO2 { - regulator-name = "ldo2"; - regulator-min-microvolt = <1650000>; - regulator-max-microvolt = <3300000>; - regulator-boot-on; - }; - - ldo3: LDO3 { - regulator-name = "ldo3"; - regulator-min-microvolt = <1650000>; - regulator-max-microvolt = <3300000>; - }; - led_ldo1: LED_LDO1 { - regulator-name = "led_ldo1"; - regulator-min-microvolt = <200000>; - regulator-max-microvolt = <300000>; - }; - led_ldo2: LED_LDO2 { - regulator-name = "led_ldo2"; - regulator-min-microvolt = <200000>; - regulator-max-microvolt = <300000>; - }; -}; From patchwork Tue May 25 10:14:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278299 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 0123CC47086 for ; Tue, 25 May 2021 10:14:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E044C61421 for ; Tue, 25 May 2021 10:14:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230314AbhEYKPx (ORCPT ); Tue, 25 May 2021 06:15:53 -0400 Received: from mail-lf1-f52.google.com ([209.85.167.52]:36544 "EHLO mail-lf1-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230140AbhEYKPu (ORCPT ); Tue, 25 May 2021 06:15:50 -0400 Received: by mail-lf1-f52.google.com with SMTP id q1so2802300lfo.3; Tue, 25 May 2021 03:14:19 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=qrEnDc8nmwtYTaFLIGowuEFwSEEynHfbRp8JKVf92iA=; b=gel2XO5mBkI5pgTLpUNfQ/NwkHHbDLR5xrvTEgj3zSZbv3K9aosahIzkisj6rhHgPd h8e6UKxiJ+zjzVdiHSBy9vEJA0MN3Fe2LOsskHCSUgS/0HRcikZaTXbtgp0+eQhBQYy1 +vQld7eUiyR30m1ftUftP4dvjD6ByZSLv5OSkvvZBIRSrFXrI4Jvf7N+TErCIYqo6Ugt EnpPh9rm9dsWGMXfwfSZLJTqQSiomTjnJtM+ISXjOzAXb44Jid9Dqs6xJFe9gaZYrIYN Za9gEfX+Rvvxhox8y4q/8Uy/ZmkVJcRTzmf+Lmj/6Ufejs8BIERMFYUQ3AaFRM8s25q8 oI0g== X-Gm-Message-State: AOAM530SGBKBhEzdrZNHG0L8y6jyUKejjEyVqMrdWobEUToRK6IJns8C yr8c7DP7kBhJOF/sPT+vPLk= X-Google-Smtp-Source: ABdhPJzLkfh18hjeUdgZPCUjnhoGvb48uJOXmxsLjbZE1cphfdS01TXOOsXlEetQJlU5Zzjr2idiZg== X-Received: by 2002:a19:7b05:: with SMTP id w5mr13554368lfc.476.1621937658283; Tue, 25 May 2021 03:14:18 -0700 (PDT) Received: from localhost.localdomain (dc7vkhyyyyyyyyyyyyycy-3.rev.dnainternet.fi. [2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id m12sm1694005lfb.72.2021.05.25.03.14.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:14:17 -0700 (PDT) Date: Tue, 25 May 2021 13:14:09 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 2/9] rtc: bd70528: Drop BD70528 support Message-ID: <2beaa677bde0f9516f366b97e91419598f1dfde4.1621937490.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen --- My heart is a bit less bleeding when I see how much simpler this RTC driver became.. Please let me know if some of you think the driver is needed. --- drivers/rtc/Kconfig | 4 +- drivers/rtc/rtc-bd70528.c | 316 ++------------------------------------ 2 files changed, 13 insertions(+), 307 deletions(-) diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index d8c13fded164..398899217626 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -502,10 +502,10 @@ config RTC_DRV_M41T80_WDT config RTC_DRV_BD70528 tristate "ROHM BD70528, BD71815 and BD71828 PMIC RTC" - depends on MFD_ROHM_BD71828 || MFD_ROHM_BD70528 && (BD70528_WATCHDOG || !BD70528_WATCHDOG) + depends on MFD_ROHM_BD71828 help If you say Y here you will get support for the RTC - block on ROHM BD70528, BD71815 and BD71828 Power Management IC. + block on ROHM BD71815 and BD71828 Power Management IC. This driver can also be built as a module. If so, the module will be called rtc-bd70528. diff --git a/drivers/rtc/rtc-bd70528.c b/drivers/rtc/rtc-bd70528.c index 6454afca02a6..59b627fc1ecf 100644 --- a/drivers/rtc/rtc-bd70528.c +++ b/drivers/rtc/rtc-bd70528.c @@ -2,10 +2,9 @@ // // Copyright (C) 2018 ROHM Semiconductors // -// RTC driver for ROHM BD70528 PMIC +// RTC driver for ROHM BD71828 and BD71815 PMIC #include -#include #include #include #include @@ -39,11 +38,6 @@ struct bd70528_rtc_data { u8 year; } __packed; -struct bd70528_rtc_wake { - struct bd70528_rtc_day time; - u8 ctrl; -} __packed; - struct bd71828_rtc_alm { struct bd70528_rtc_data alm0; struct bd70528_rtc_data alm1; @@ -51,141 +45,14 @@ struct bd71828_rtc_alm { u8 alm1_mask; } __packed; -struct bd70528_rtc_alm { - struct bd70528_rtc_data data; - u8 alm_mask; - u8 alm_repeat; -} __packed; - struct bd70528_rtc { struct rohm_regmap_dev *parent; struct regmap *regmap; struct device *dev; u8 reg_time_start; u8 bd718xx_alm_block_start; - bool has_rtc_timers; }; -static int bd70528_set_wake(struct rohm_regmap_dev *bd70528, - int enable, int *old_state) -{ - int ret; - unsigned int ctrl_reg; - - ret = regmap_read(bd70528->regmap, BD70528_REG_WAKE_EN, &ctrl_reg); - if (ret) - return ret; - - if (old_state) { - if (ctrl_reg & BD70528_MASK_WAKE_EN) - *old_state |= BD70528_WAKE_STATE_BIT; - else - *old_state &= ~BD70528_WAKE_STATE_BIT; - - if (!enable == !(*old_state & BD70528_WAKE_STATE_BIT)) - return 0; - } - - if (enable) - ctrl_reg |= BD70528_MASK_WAKE_EN; - else - ctrl_reg &= ~BD70528_MASK_WAKE_EN; - - return regmap_write(bd70528->regmap, BD70528_REG_WAKE_EN, - ctrl_reg); -} - -static int bd70528_set_elapsed_tmr(struct rohm_regmap_dev *bd70528, - int enable, int *old_state) -{ - int ret; - unsigned int ctrl_reg; - - /* - * TBD - * What is the purpose of elapsed timer ? - * Is the timeout registers counting down, or is the disable - re-enable - * going to restart the elapsed-time counting? If counting is restarted - * the timeout should be decreased by the amount of time that has - * elapsed since starting the timer. Maybe we should store the monotonic - * clock value when timer is started so that if RTC is set while timer - * is armed we could do the compensation. This is a hack if RTC/system - * clk are drifting. OTOH, RTC controlled via I2C is in any case - * inaccurate... - */ - ret = regmap_read(bd70528->regmap, BD70528_REG_ELAPSED_TIMER_EN, - &ctrl_reg); - if (ret) - return ret; - - if (old_state) { - if (ctrl_reg & BD70528_MASK_ELAPSED_TIMER_EN) - *old_state |= BD70528_ELAPSED_STATE_BIT; - else - *old_state &= ~BD70528_ELAPSED_STATE_BIT; - - if ((!enable) == (!(*old_state & BD70528_ELAPSED_STATE_BIT))) - return 0; - } - - if (enable) - ctrl_reg |= BD70528_MASK_ELAPSED_TIMER_EN; - else - ctrl_reg &= ~BD70528_MASK_ELAPSED_TIMER_EN; - - return regmap_write(bd70528->regmap, BD70528_REG_ELAPSED_TIMER_EN, - ctrl_reg); -} - -static int bd70528_set_rtc_based_timers(struct bd70528_rtc *r, int new_state, - int *old_state) -{ - int ret; - - ret = bd70528_wdt_set(r->parent, new_state & BD70528_WDT_STATE_BIT, - old_state); - if (ret) { - dev_err(r->dev, - "Failed to disable WDG for RTC setting (%d)\n", ret); - return ret; - } - ret = bd70528_set_elapsed_tmr(r->parent, - new_state & BD70528_ELAPSED_STATE_BIT, - old_state); - if (ret) { - dev_err(r->dev, - "Failed to disable 'elapsed timer' for RTC setting\n"); - return ret; - } - ret = bd70528_set_wake(r->parent, new_state & BD70528_WAKE_STATE_BIT, - old_state); - if (ret) { - dev_err(r->dev, - "Failed to disable 'wake timer' for RTC setting\n"); - return ret; - } - - return ret; -} - -static int bd70528_re_enable_rtc_based_timers(struct bd70528_rtc *r, - int old_state) -{ - if (!r->has_rtc_timers) - return 0; - - return bd70528_set_rtc_based_timers(r, old_state, NULL); -} - -static int bd70528_disable_rtc_based_timers(struct bd70528_rtc *r, - int *old_state) -{ - if (!r->has_rtc_timers) - return 0; - - return bd70528_set_rtc_based_timers(r, 0, old_state); -} - static inline void tmday2rtc(struct rtc_time *t, struct bd70528_rtc_day *d) { d->sec &= ~BD70528_MASK_RTC_SEC; @@ -267,52 +134,6 @@ static int bd71828_set_alarm(struct device *dev, struct rtc_wkalrm *a) } -static int bd70528_set_alarm(struct device *dev, struct rtc_wkalrm *a) -{ - struct bd70528_rtc_wake wake; - struct bd70528_rtc_alm alm; - int ret; - struct bd70528_rtc *r = dev_get_drvdata(dev); - - ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_WAKE_START, &wake, - sizeof(wake)); - if (ret) { - dev_err(dev, "Failed to read wake regs\n"); - return ret; - } - - ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_ALM_START, &alm, - sizeof(alm)); - if (ret) { - dev_err(dev, "Failed to read alarm regs\n"); - return ret; - } - - tm2rtc(&a->time, &alm.data); - tmday2rtc(&a->time, &wake.time); - - if (a->enabled) { - alm.alm_mask &= ~BD70528_MASK_ALM_EN; - wake.ctrl |= BD70528_MASK_WAKE_EN; - } else { - alm.alm_mask |= BD70528_MASK_ALM_EN; - wake.ctrl &= ~BD70528_MASK_WAKE_EN; - } - - ret = regmap_bulk_write(r->regmap, BD70528_REG_RTC_WAKE_START, &wake, - sizeof(wake)); - if (ret) { - dev_err(dev, "Failed to set wake time\n"); - return ret; - } - ret = regmap_bulk_write(r->regmap, BD70528_REG_RTC_ALM_START, &alm, - sizeof(alm)); - if (ret) - dev_err(dev, "Failed to set alarm time\n"); - - return ret; -} - static int bd71828_read_alarm(struct device *dev, struct rtc_wkalrm *a) { int ret; @@ -336,78 +157,28 @@ static int bd71828_read_alarm(struct device *dev, struct rtc_wkalrm *a) return 0; } -static int bd70528_read_alarm(struct device *dev, struct rtc_wkalrm *a) +static int bd71828_set_time(struct device *dev, struct rtc_time *t) { - struct bd70528_rtc_alm alm; int ret; - struct bd70528_rtc *r = dev_get_drvdata(dev); - - ret = regmap_bulk_read(r->regmap, BD70528_REG_RTC_ALM_START, &alm, - sizeof(alm)); - if (ret) { - dev_err(dev, "Failed to read alarm regs\n"); - return ret; - } - - rtc2tm(&alm.data, &a->time); - a->time.tm_mday = -1; - a->time.tm_mon = -1; - a->time.tm_year = -1; - a->enabled = !(alm.alm_mask & BD70528_MASK_ALM_EN); - a->pending = 0; - - return 0; -} - -static int bd70528_set_time_locked(struct device *dev, struct rtc_time *t) -{ - int ret, tmpret, old_states; struct bd70528_rtc_data rtc_data; struct bd70528_rtc *r = dev_get_drvdata(dev); - ret = bd70528_disable_rtc_based_timers(r, &old_states); - if (ret) - return ret; - - tmpret = regmap_bulk_read(r->regmap, r->reg_time_start, &rtc_data, - sizeof(rtc_data)); - if (tmpret) { + ret = regmap_bulk_read(r->regmap, r->reg_time_start, &rtc_data, + sizeof(rtc_data)); + if (ret) { dev_err(dev, "Failed to read RTC time registers\n"); - goto renable_out; + return ret; } tm2rtc(t, &rtc_data); - tmpret = regmap_bulk_write(r->regmap, r->reg_time_start, &rtc_data, - sizeof(rtc_data)); - if (tmpret) { + ret = regmap_bulk_write(r->regmap, r->reg_time_start, &rtc_data, + sizeof(rtc_data)); + if (ret) dev_err(dev, "Failed to set RTC time\n"); - goto renable_out; - } - -renable_out: - ret = bd70528_re_enable_rtc_based_timers(r, old_states); - if (tmpret) - ret = tmpret; return ret; } -static int bd71828_set_time(struct device *dev, struct rtc_time *t) -{ - return bd70528_set_time_locked(dev, t); -} - -static int bd70528_set_time(struct device *dev, struct rtc_time *t) -{ - int ret; - struct bd70528_rtc *r = dev_get_drvdata(dev); - - bd70528_wdt_lock(r->parent); - ret = bd70528_set_time_locked(dev, t); - bd70528_wdt_unlock(r->parent); - return ret; -} - static int bd70528_get_time(struct device *dev, struct rtc_time *t) { struct bd70528_rtc *r = dev_get_drvdata(dev); @@ -427,31 +198,6 @@ static int bd70528_get_time(struct device *dev, struct rtc_time *t) return 0; } -static int bd70528_alm_enable(struct device *dev, unsigned int enabled) -{ - int ret; - unsigned int enableval = BD70528_MASK_ALM_EN; - struct bd70528_rtc *r = dev_get_drvdata(dev); - - if (enabled) - enableval = 0; - - bd70528_wdt_lock(r->parent); - ret = bd70528_set_wake(r->parent, enabled, NULL); - if (ret) { - dev_err(dev, "Failed to change wake state\n"); - goto out_unlock; - } - ret = regmap_update_bits(r->regmap, BD70528_REG_RTC_ALM_MASK, - BD70528_MASK_ALM_EN, enableval); - if (ret) - dev_err(dev, "Failed to change alarm state\n"); - -out_unlock: - bd70528_wdt_unlock(r->parent); - return ret; -} - static int bd71828_alm_enable(struct device *dev, unsigned int enabled) { int ret; @@ -470,14 +216,6 @@ static int bd71828_alm_enable(struct device *dev, unsigned int enabled) return ret; } -static const struct rtc_class_ops bd70528_rtc_ops = { - .read_time = bd70528_get_time, - .set_time = bd70528_set_time, - .read_alarm = bd70528_read_alarm, - .set_alarm = bd70528_set_alarm, - .alarm_irq_enable = bd70528_alm_enable, -}; - static const struct rtc_class_ops bd71828_rtc_ops = { .read_time = bd70528_get_time, .set_time = bd71828_set_time, @@ -503,7 +241,6 @@ static int bd70528_probe(struct platform_device *pdev) struct rtc_device *rtc; int irq; unsigned int hr; - bool enable_main_irq = false; u8 hour_reg; enum rohm_chip_type chip = platform_get_device_id(pdev)->driver_data; @@ -518,21 +255,9 @@ static int bd70528_probe(struct platform_device *pdev) } bd_rtc->dev = &pdev->dev; + rtc_ops = &bd71828_rtc_ops; switch (chip) { - case ROHM_CHIP_TYPE_BD70528: - bd_rtc->parent = dev_get_drvdata(pdev->dev.parent); - if (!bd_rtc->parent) { - dev_err(&pdev->dev, "No MFD data\n"); - return -EINVAL; - } - irq_name = "bd70528-rtc-alm"; - bd_rtc->has_rtc_timers = true; - bd_rtc->reg_time_start = BD70528_REG_RTC_START; - hour_reg = BD70528_REG_RTC_HOUR; - enable_main_irq = true; - rtc_ops = &bd70528_rtc_ops; - break; case ROHM_CHIP_TYPE_BD71815: irq_name = "bd71815-rtc-alm-0"; bd_rtc->reg_time_start = BD71815_REG_RTC_START; @@ -549,14 +274,12 @@ static int bd70528_probe(struct platform_device *pdev) */ bd_rtc->bd718xx_alm_block_start = BD71815_REG_RTC_ALM_START; hour_reg = BD71815_REG_HOUR; - rtc_ops = &bd71828_rtc_ops; break; case ROHM_CHIP_TYPE_BD71828: irq_name = "bd71828-rtc-alm-0"; bd_rtc->reg_time_start = BD71828_REG_RTC_START; bd_rtc->bd718xx_alm_block_start = BD71828_REG_RTC_ALM_START; hour_reg = BD71828_REG_RTC_HOUR; - rtc_ops = &bd71828_rtc_ops; break; default: dev_err(&pdev->dev, "Unknown chip\n"); @@ -611,27 +334,10 @@ static int bd70528_probe(struct platform_device *pdev) if (ret) return ret; - /* - * BD70528 irq controller is not touching the main mask register. - * So enable the RTC block interrupts at main level. We can just - * leave them enabled as irq-controller should disable irqs - * from sub-registers when IRQ is disabled or freed. - */ - if (enable_main_irq) { - ret = regmap_update_bits(bd_rtc->regmap, - BD70528_REG_INT_MAIN_MASK, - BD70528_INT_RTC_MASK, 0); - if (ret) { - dev_err(&pdev->dev, "Failed to enable RTC interrupts\n"); - return ret; - } - } - return devm_rtc_register_device(rtc); } static const struct platform_device_id bd718x7_rtc_id[] = { - { "bd70528-rtc", ROHM_CHIP_TYPE_BD70528 }, { "bd71828-rtc", ROHM_CHIP_TYPE_BD71828 }, { "bd71815-rtc", ROHM_CHIP_TYPE_BD71815 }, { }, @@ -649,6 +355,6 @@ static struct platform_driver bd70528_rtc = { module_platform_driver(bd70528_rtc); MODULE_AUTHOR("Matti Vaittinen "); -MODULE_DESCRIPTION("ROHM BD70528 and BD71828 PMIC RTC driver"); +MODULE_DESCRIPTION("ROHM BD71828 and BD71815 PMIC RTC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:bd70528-rtc"); From patchwork Tue May 25 10:14:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278301 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 84159C47087 for ; Tue, 25 May 2021 10:14:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 784E46140E for ; Tue, 25 May 2021 10:14:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230372AbhEYKQO (ORCPT ); Tue, 25 May 2021 06:16:14 -0400 Received: from mail-lj1-f177.google.com ([209.85.208.177]:37431 "EHLO mail-lj1-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230140AbhEYKQL (ORCPT ); Tue, 25 May 2021 06:16:11 -0400 Received: by mail-lj1-f177.google.com with SMTP id e2so31044725ljk.4; Tue, 25 May 2021 03:14:39 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=Pvp1EMD3cM23xbQomRI++cJ+h3aHyG7yPxE9BDdxJsY=; b=Fp3RgKe+7TzDT5kZaApI6rYDr1O8aSfMCv43MncTNuLWd/FKFFZx103oQnY31VVLdc 7SBeruR1AIqXcgRJ0eqd0D7ae/6LQlqIUG1qcs8kPgjDtzTrEswuZ9tqprVhqSnfmmwU +1SvkcLXIsOFVWJFnu13Z0Qi4ZtFyMyE1VNEi9B1iX+ZjGVPN/m0L27NOV3F+AgoH1HO 1IQO0K1HFw6uraRj1VEP3TDKpKROQilQmUZN2gDAIH9/JdQygNv4MHlHUczWcxvfkSB2 BfBf5rg2IxmbUqrvQPD78VIVs58VBN8nAgbTE6gljiexHSLUyagCgTjzBsvLD5UFXc4c xLhA== X-Gm-Message-State: AOAM533tem9sozn6fLAeqFKoFh5GGmslOc4QsUkmFntII3+rHu7H3emg cAq5kSH/nnx2TB1lq2QRtOA= X-Google-Smtp-Source: ABdhPJyZtB1U9VstuKQw189kN6xAez8rRLU49AAmOIgZ8AAiwefOUs5Uwyv1kiWj9MUdcu+IrolEWA== X-Received: by 2002:a2e:a58d:: with SMTP id m13mr20087921ljp.252.1621937678916; Tue, 25 May 2021 03:14:38 -0700 (PDT) Received: from localhost.localdomain (dc7vkhyyyyyyyyyyyyycy-3.rev.dnainternet.fi. [2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id z13sm2036939lji.115.2021.05.25.03.14.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:14:38 -0700 (PDT) Date: Tue, 25 May 2021 13:14:31 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 3/9] watchdog: bd70528 drop bd70528 support Message-ID: <994d2e374262c3f59f4465c03ef23d3116120778.1621937490.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen Reviewed-by: Guenter Roeck --- Please let me know if some of you think the driver is needed. --- drivers/watchdog/Kconfig | 12 -- drivers/watchdog/Makefile | 1 - drivers/watchdog/bd70528_wdt.c | 291 --------------------------------- 3 files changed, 304 deletions(-) delete mode 100644 drivers/watchdog/bd70528_wdt.c diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 355100dad60a..26824ac6c5bc 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -160,18 +160,6 @@ config SOFT_WATCHDOG_PRETIMEOUT watchdog. Be aware that governors might affect the watchdog because it is purely software, e.g. the panic governor will stall it! -config BD70528_WATCHDOG - tristate "ROHM BD70528 PMIC Watchdog" - depends on MFD_ROHM_BD70528 - select WATCHDOG_CORE - help - Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger - cause system reset. - - Say Y here to include support for the ROHM BD70528 watchdog. - Alternatively say M to compile the driver as a module, - which will be called bd70528_wdt. - config BD957XMUF_WATCHDOG tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog" depends on MFD_ROHM_BD957XMUF diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index a7eade8b4d45..1838df3ed650 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -203,7 +203,6 @@ obj-$(CONFIG_WATCHDOG_SUN4V) += sun4v_wdt.o obj-$(CONFIG_XEN_WDT) += xen_wdt.o # Architecture Independent -obj-$(CONFIG_BD70528_WATCHDOG) += bd70528_wdt.o obj-$(CONFIG_BD957XMUF_WATCHDOG) += bd9576_wdt.o obj-$(CONFIG_DA9052_WATCHDOG) += da9052_wdt.o obj-$(CONFIG_DA9055_WATCHDOG) += da9055_wdt.o diff --git a/drivers/watchdog/bd70528_wdt.c b/drivers/watchdog/bd70528_wdt.c deleted file mode 100644 index 0170b37e6674..000000000000 --- a/drivers/watchdog/bd70528_wdt.c +++ /dev/null @@ -1,291 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// Copyright (C) 2018 ROHM Semiconductors -// ROHM BD70528MWV watchdog driver - -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * Max time we can set is 1 hour, 59 minutes and 59 seconds - * and Minimum time is 1 second - */ -#define WDT_MAX_MS ((2 * 60 * 60 - 1) * 1000) -#define WDT_MIN_MS 1000 -#define DEFAULT_TIMEOUT 60 - -#define WD_CTRL_MAGIC1 0x55 -#define WD_CTRL_MAGIC2 0xAA - -struct wdtbd70528 { - struct device *dev; - struct regmap *regmap; - struct rohm_regmap_dev *mfd; - struct watchdog_device wdt; -}; - -/** - * bd70528_wdt_set - arm or disarm watchdog timer - * - * @data: device data for the PMIC instance we want to operate on - * @enable: new state of WDT. zero to disable, non zero to enable - * @old_state: previous state of WDT will be filled here - * - * Arm or disarm WDT on BD70528 PMIC. Expected to be called only by - * BD70528 RTC and BD70528 WDT drivers. The rtc_timer_lock must be taken - * by calling bd70528_wdt_lock before calling bd70528_wdt_set. - */ -int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable, int *old_state) -{ - int ret, i; - unsigned int tmp; - struct bd70528_data *bd70528 = container_of(data, struct bd70528_data, - chip); - u8 wd_ctrl_arr[3] = { WD_CTRL_MAGIC1, WD_CTRL_MAGIC2, 0 }; - u8 *wd_ctrl = &wd_ctrl_arr[2]; - - ret = regmap_read(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, &tmp); - if (ret) - return ret; - - *wd_ctrl = (u8)tmp; - - if (old_state) { - if (*wd_ctrl & BD70528_MASK_WDT_EN) - *old_state |= BD70528_WDT_STATE_BIT; - else - *old_state &= ~BD70528_WDT_STATE_BIT; - if ((!enable) == (!(*old_state & BD70528_WDT_STATE_BIT))) - return 0; - } - - if (enable) { - if (*wd_ctrl & BD70528_MASK_WDT_EN) - return 0; - *wd_ctrl |= BD70528_MASK_WDT_EN; - } else { - if (*wd_ctrl & BD70528_MASK_WDT_EN) - *wd_ctrl &= ~BD70528_MASK_WDT_EN; - else - return 0; - } - - for (i = 0; i < 3; i++) { - ret = regmap_write(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, - wd_ctrl_arr[i]); - if (ret) - return ret; - } - - ret = regmap_read(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, &tmp); - if ((tmp & BD70528_MASK_WDT_EN) != (*wd_ctrl & BD70528_MASK_WDT_EN)) { - dev_err(bd70528->chip.dev, - "Watchdog ctrl mismatch (hw) 0x%x (set) 0x%x\n", - tmp, *wd_ctrl); - ret = -EIO; - } - - return ret; -} -EXPORT_SYMBOL(bd70528_wdt_set); - -/** - * bd70528_wdt_lock - take WDT lock - * - * @data: device data for the PMIC instance we want to operate on - * - * Lock WDT for arming/disarming in order to avoid race condition caused - * by WDT state changes initiated by WDT and RTC drivers. - */ -void bd70528_wdt_lock(struct rohm_regmap_dev *data) -{ - struct bd70528_data *bd70528 = container_of(data, struct bd70528_data, - chip); - - mutex_lock(&bd70528->rtc_timer_lock); -} -EXPORT_SYMBOL(bd70528_wdt_lock); - -/** - * bd70528_wdt_unlock - unlock WDT lock - * - * @data: device data for the PMIC instance we want to operate on - * - * Unlock WDT lock which has previously been taken by call to - * bd70528_wdt_lock. - */ -void bd70528_wdt_unlock(struct rohm_regmap_dev *data) -{ - struct bd70528_data *bd70528 = container_of(data, struct bd70528_data, - chip); - - mutex_unlock(&bd70528->rtc_timer_lock); -} -EXPORT_SYMBOL(bd70528_wdt_unlock); - -static int bd70528_wdt_set_locked(struct wdtbd70528 *w, int enable) -{ - return bd70528_wdt_set(w->mfd, enable, NULL); -} - -static int bd70528_wdt_change(struct wdtbd70528 *w, int enable) -{ - int ret; - - bd70528_wdt_lock(w->mfd); - ret = bd70528_wdt_set_locked(w, enable); - bd70528_wdt_unlock(w->mfd); - - return ret; -} - -static int bd70528_wdt_start(struct watchdog_device *wdt) -{ - struct wdtbd70528 *w = watchdog_get_drvdata(wdt); - - dev_dbg(w->dev, "WDT ping...\n"); - return bd70528_wdt_change(w, 1); -} - -static int bd70528_wdt_stop(struct watchdog_device *wdt) -{ - struct wdtbd70528 *w = watchdog_get_drvdata(wdt); - - dev_dbg(w->dev, "WDT stopping...\n"); - return bd70528_wdt_change(w, 0); -} - -static int bd70528_wdt_set_timeout(struct watchdog_device *wdt, - unsigned int timeout) -{ - unsigned int hours; - unsigned int minutes; - unsigned int seconds; - int ret; - struct wdtbd70528 *w = watchdog_get_drvdata(wdt); - - seconds = timeout; - hours = timeout / (60 * 60); - /* Maximum timeout is 1h 59m 59s => hours is 1 or 0 */ - if (hours) - seconds -= (60 * 60); - minutes = seconds / 60; - seconds = seconds % 60; - - bd70528_wdt_lock(w->mfd); - - ret = bd70528_wdt_set_locked(w, 0); - if (ret) - goto out_unlock; - - ret = regmap_update_bits(w->regmap, BD70528_REG_WDT_HOUR, - BD70528_MASK_WDT_HOUR, hours); - if (ret) { - dev_err(w->dev, "Failed to set WDT hours\n"); - goto out_en_unlock; - } - ret = regmap_update_bits(w->regmap, BD70528_REG_WDT_MINUTE, - BD70528_MASK_WDT_MINUTE, bin2bcd(minutes)); - if (ret) { - dev_err(w->dev, "Failed to set WDT minutes\n"); - goto out_en_unlock; - } - ret = regmap_update_bits(w->regmap, BD70528_REG_WDT_SEC, - BD70528_MASK_WDT_SEC, bin2bcd(seconds)); - if (ret) - dev_err(w->dev, "Failed to set WDT seconds\n"); - else - dev_dbg(w->dev, "WDT tmo set to %u\n", timeout); - -out_en_unlock: - ret = bd70528_wdt_set_locked(w, 1); -out_unlock: - bd70528_wdt_unlock(w->mfd); - - return ret; -} - -static const struct watchdog_info bd70528_wdt_info = { - .identity = "bd70528-wdt", - .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE, -}; - -static const struct watchdog_ops bd70528_wdt_ops = { - .start = bd70528_wdt_start, - .stop = bd70528_wdt_stop, - .set_timeout = bd70528_wdt_set_timeout, -}; - -static int bd70528_wdt_probe(struct platform_device *pdev) -{ - struct rohm_regmap_dev *bd70528; - struct wdtbd70528 *w; - int ret; - unsigned int reg; - - bd70528 = dev_get_drvdata(pdev->dev.parent); - if (!bd70528) { - dev_err(&pdev->dev, "No MFD driver data\n"); - return -EINVAL; - } - w = devm_kzalloc(&pdev->dev, sizeof(*w), GFP_KERNEL); - if (!w) - return -ENOMEM; - - w->regmap = bd70528->regmap; - w->mfd = bd70528; - w->dev = &pdev->dev; - - w->wdt.info = &bd70528_wdt_info; - w->wdt.ops = &bd70528_wdt_ops; - w->wdt.min_hw_heartbeat_ms = WDT_MIN_MS; - w->wdt.max_hw_heartbeat_ms = WDT_MAX_MS; - w->wdt.parent = pdev->dev.parent; - w->wdt.timeout = DEFAULT_TIMEOUT; - watchdog_set_drvdata(&w->wdt, w); - watchdog_init_timeout(&w->wdt, 0, pdev->dev.parent); - - ret = bd70528_wdt_set_timeout(&w->wdt, w->wdt.timeout); - if (ret) { - dev_err(&pdev->dev, "Failed to set the watchdog timeout\n"); - return ret; - } - - bd70528_wdt_lock(w->mfd); - ret = regmap_read(w->regmap, BD70528_REG_WDT_CTRL, ®); - bd70528_wdt_unlock(w->mfd); - - if (ret) { - dev_err(&pdev->dev, "Failed to get the watchdog state\n"); - return ret; - } - if (reg & BD70528_MASK_WDT_EN) { - dev_dbg(&pdev->dev, "watchdog was running during probe\n"); - set_bit(WDOG_HW_RUNNING, &w->wdt.status); - } - - ret = devm_watchdog_register_device(&pdev->dev, &w->wdt); - if (ret < 0) - dev_err(&pdev->dev, "watchdog registration failed: %d\n", ret); - - return ret; -} - -static struct platform_driver bd70528_wdt = { - .driver = { - .name = "bd70528-wdt" - }, - .probe = bd70528_wdt_probe, -}; - -module_platform_driver(bd70528_wdt); - -MODULE_AUTHOR("Matti Vaittinen "); -MODULE_DESCRIPTION("BD70528 watchdog driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:bd70528-wdt"); From patchwork Tue May 25 10:14:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278303 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 16CC1C47086 for ; Tue, 25 May 2021 10:15:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B7E561417 for ; Tue, 25 May 2021 10:15:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230418AbhEYKQd (ORCPT ); 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[2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id b6sm1690762lfb.114.2021.05.25.03.14.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:14:57 -0700 (PDT) Date: Tue, 25 May 2021 13:14:51 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 4/9] regulator: bd70528: Drop BD70528 support Message-ID: <6b1668099cde29bc6fa958773a1a311df54ab236.1621937490.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen --- Please let me know if some of you think the driver is needed. --- drivers/regulator/Kconfig | 11 - drivers/regulator/Makefile | 1 - drivers/regulator/bd70528-regulator.c | 283 -------------------------- 3 files changed, 295 deletions(-) delete mode 100644 drivers/regulator/bd70528-regulator.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 9d84d9245490..ebbd9e6207df 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -193,17 +193,6 @@ config REGULATOR_BCM590XX BCM590xx PMUs. This will enable support for the software controllable LDO/Switching regulators. -config REGULATOR_BD70528 - tristate "ROHM BD70528 Power Regulator" - depends on MFD_ROHM_BD70528 - help - This driver supports voltage regulators on ROHM BD70528 PMIC. - This will enable support for the software controllable buck - and LDO regulators. - - This driver can also be built as a module. If so, the module - will be called bd70528-regulator. - config REGULATOR_BD71815 tristate "ROHM BD71815 Power Regulator" depends on MFD_ROHM_BD71828 diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 580b015296ea..6a5d55e209d3 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -29,7 +29,6 @@ obj-$(CONFIG_REGULATOR_AS3722) += as3722-regulator.o obj-$(CONFIG_REGULATOR_ATC260X) += atc260x-regulator.o obj-$(CONFIG_REGULATOR_AXP20X) += axp20x-regulator.o obj-$(CONFIG_REGULATOR_BCM590XX) += bcm590xx-regulator.o -obj-$(CONFIG_REGULATOR_BD70528) += bd70528-regulator.o obj-$(CONFIG_REGULATOR_BD71815) += bd71815-regulator.o obj-$(CONFIG_REGULATOR_BD71828) += bd71828-regulator.o obj-$(CONFIG_REGULATOR_BD718XX) += bd718x7-regulator.o diff --git a/drivers/regulator/bd70528-regulator.c b/drivers/regulator/bd70528-regulator.c deleted file mode 100644 index 1f5f9482b209..000000000000 --- a/drivers/regulator/bd70528-regulator.c +++ /dev/null @@ -1,283 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// Copyright (C) 2018 ROHM Semiconductors -// bd70528-regulator.c ROHM BD70528MWV regulator driver - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define BUCK_RAMPRATE_250MV 0 -#define BUCK_RAMPRATE_125MV 1 -#define BUCK_RAMP_MAX 250 - -static const struct linear_range bd70528_buck1_volts[] = { - REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 600000), - REGULATOR_LINEAR_RANGE(2750000, 0x2, 0xf, 50000), -}; -static const struct linear_range bd70528_buck2_volts[] = { - REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x1, 300000), - REGULATOR_LINEAR_RANGE(1550000, 0x2, 0xd, 50000), - REGULATOR_LINEAR_RANGE(3000000, 0xe, 0xf, 300000), -}; -static const struct linear_range bd70528_buck3_volts[] = { - REGULATOR_LINEAR_RANGE(800000, 0x00, 0xd, 50000), - REGULATOR_LINEAR_RANGE(1800000, 0xe, 0xf, 0), -}; - -/* All LDOs have same voltage ranges */ -static const struct linear_range bd70528_ldo_volts[] = { - REGULATOR_LINEAR_RANGE(1650000, 0x0, 0x07, 50000), - REGULATOR_LINEAR_RANGE(2100000, 0x8, 0x0f, 100000), - REGULATOR_LINEAR_RANGE(2850000, 0x10, 0x19, 50000), - REGULATOR_LINEAR_RANGE(3300000, 0x19, 0x1f, 0), -}; - -/* Also both LEDs support same voltages */ -static const unsigned int led_volts[] = { - 20000, 30000 -}; - -static int bd70528_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) -{ - if (ramp_delay > 0 && ramp_delay <= BUCK_RAMP_MAX) { - unsigned int ramp_value = BUCK_RAMPRATE_250MV; - - if (ramp_delay <= 125) - ramp_value = BUCK_RAMPRATE_125MV; - - return regmap_update_bits(rdev->regmap, rdev->desc->vsel_reg, - BD70528_MASK_BUCK_RAMP, - ramp_value << BD70528_SIFT_BUCK_RAMP); - } - dev_err(&rdev->dev, "%s: ramp_delay: %d not supported\n", - rdev->desc->name, ramp_delay); - return -EINVAL; -} - -static int bd70528_led_set_voltage_sel(struct regulator_dev *rdev, - unsigned int sel) -{ - int ret; - - ret = regulator_is_enabled_regmap(rdev); - if (ret < 0) - return ret; - - if (ret == 0) - return regulator_set_voltage_sel_regmap(rdev, sel); - - dev_err(&rdev->dev, - "LED voltage change not allowed when led is enabled\n"); - - return -EBUSY; -} - -static const struct regulator_ops bd70528_buck_ops = { - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .is_enabled = regulator_is_enabled_regmap, - .list_voltage = regulator_list_voltage_linear_range, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_ramp_delay = bd70528_set_ramp_delay, -}; - -static const struct regulator_ops bd70528_ldo_ops = { - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .is_enabled = regulator_is_enabled_regmap, - .list_voltage = regulator_list_voltage_linear_range, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, -}; - -static const struct regulator_ops bd70528_led_ops = { - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .is_enabled = regulator_is_enabled_regmap, - .list_voltage = regulator_list_voltage_table, - .set_voltage_sel = bd70528_led_set_voltage_sel, - .get_voltage_sel = regulator_get_voltage_sel_regmap, -}; - -static const struct regulator_desc bd70528_desc[] = { - { - .name = "buck1", - .of_match = of_match_ptr("BUCK1"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_BUCK1, - .ops = &bd70528_buck_ops, - .type = REGULATOR_VOLTAGE, - .linear_ranges = bd70528_buck1_volts, - .n_linear_ranges = ARRAY_SIZE(bd70528_buck1_volts), - .n_voltages = BD70528_BUCK_VOLTS, - .enable_reg = BD70528_REG_BUCK1_EN, - .enable_mask = BD70528_MASK_RUN_EN, - .vsel_reg = BD70528_REG_BUCK1_VOLT, - .vsel_mask = BD70528_MASK_BUCK_VOLT, - .owner = THIS_MODULE, - }, - { - .name = "buck2", - .of_match = of_match_ptr("BUCK2"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_BUCK2, - .ops = &bd70528_buck_ops, - .type = REGULATOR_VOLTAGE, - .linear_ranges = bd70528_buck2_volts, - .n_linear_ranges = ARRAY_SIZE(bd70528_buck2_volts), - .n_voltages = BD70528_BUCK_VOLTS, - .enable_reg = BD70528_REG_BUCK2_EN, - .enable_mask = BD70528_MASK_RUN_EN, - .vsel_reg = BD70528_REG_BUCK2_VOLT, - .vsel_mask = BD70528_MASK_BUCK_VOLT, - .owner = THIS_MODULE, - }, - { - .name = "buck3", - .of_match = of_match_ptr("BUCK3"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_BUCK3, - .ops = &bd70528_buck_ops, - .type = REGULATOR_VOLTAGE, - .linear_ranges = bd70528_buck3_volts, - .n_linear_ranges = ARRAY_SIZE(bd70528_buck3_volts), - .n_voltages = BD70528_BUCK_VOLTS, - .enable_reg = BD70528_REG_BUCK3_EN, - .enable_mask = BD70528_MASK_RUN_EN, - .vsel_reg = BD70528_REG_BUCK3_VOLT, - .vsel_mask = BD70528_MASK_BUCK_VOLT, - .owner = THIS_MODULE, - }, - { - .name = "ldo1", - .of_match = of_match_ptr("LDO1"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_LDO1, - .ops = &bd70528_ldo_ops, - .type = REGULATOR_VOLTAGE, - .linear_ranges = bd70528_ldo_volts, - .n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts), - .n_voltages = BD70528_LDO_VOLTS, - .enable_reg = BD70528_REG_LDO1_EN, - .enable_mask = BD70528_MASK_RUN_EN, - .vsel_reg = BD70528_REG_LDO1_VOLT, - .vsel_mask = BD70528_MASK_LDO_VOLT, - .owner = THIS_MODULE, - }, - { - .name = "ldo2", - .of_match = of_match_ptr("LDO2"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_LDO2, - .ops = &bd70528_ldo_ops, - .type = REGULATOR_VOLTAGE, - .linear_ranges = bd70528_ldo_volts, - .n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts), - .n_voltages = BD70528_LDO_VOLTS, - .enable_reg = BD70528_REG_LDO2_EN, - .enable_mask = BD70528_MASK_RUN_EN, - .vsel_reg = BD70528_REG_LDO2_VOLT, - .vsel_mask = BD70528_MASK_LDO_VOLT, - .owner = THIS_MODULE, - }, - { - .name = "ldo3", - .of_match = of_match_ptr("LDO3"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_LDO3, - .ops = &bd70528_ldo_ops, - .type = REGULATOR_VOLTAGE, - .linear_ranges = bd70528_ldo_volts, - .n_linear_ranges = ARRAY_SIZE(bd70528_ldo_volts), - .n_voltages = BD70528_LDO_VOLTS, - .enable_reg = BD70528_REG_LDO3_EN, - .enable_mask = BD70528_MASK_RUN_EN, - .vsel_reg = BD70528_REG_LDO3_VOLT, - .vsel_mask = BD70528_MASK_LDO_VOLT, - .owner = THIS_MODULE, - }, - { - .name = "ldo_led1", - .of_match = of_match_ptr("LDO_LED1"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_LED1, - .ops = &bd70528_led_ops, - .type = REGULATOR_VOLTAGE, - .volt_table = &led_volts[0], - .n_voltages = ARRAY_SIZE(led_volts), - .enable_reg = BD70528_REG_LED_EN, - .enable_mask = BD70528_MASK_LED1_EN, - .vsel_reg = BD70528_REG_LED_VOLT, - .vsel_mask = BD70528_MASK_LED1_VOLT, - .owner = THIS_MODULE, - }, - { - .name = "ldo_led2", - .of_match = of_match_ptr("LDO_LED2"), - .regulators_node = of_match_ptr("regulators"), - .id = BD70528_LED2, - .ops = &bd70528_led_ops, - .type = REGULATOR_VOLTAGE, - .volt_table = &led_volts[0], - .n_voltages = ARRAY_SIZE(led_volts), - .enable_reg = BD70528_REG_LED_EN, - .enable_mask = BD70528_MASK_LED2_EN, - .vsel_reg = BD70528_REG_LED_VOLT, - .vsel_mask = BD70528_MASK_LED2_VOLT, - .owner = THIS_MODULE, - }, - -}; - -static int bd70528_probe(struct platform_device *pdev) -{ - int i; - struct regulator_config config = { - .dev = pdev->dev.parent, - }; - - config.regmap = dev_get_regmap(pdev->dev.parent, NULL); - if (!config.regmap) - return -ENODEV; - - for (i = 0; i < ARRAY_SIZE(bd70528_desc); i++) { - struct regulator_dev *rdev; - - rdev = devm_regulator_register(&pdev->dev, &bd70528_desc[i], - &config); - if (IS_ERR(rdev)) { - dev_err(&pdev->dev, - "failed to register %s regulator\n", - bd70528_desc[i].name); - return PTR_ERR(rdev); - } - } - return 0; -} - -static struct platform_driver bd70528_regulator = { - .driver = { - .name = "bd70528-pmic" - }, - .probe = bd70528_probe, -}; - -module_platform_driver(bd70528_regulator); - -MODULE_AUTHOR("Matti Vaittinen "); -MODULE_DESCRIPTION("BD70528 voltage regulator driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:bd70528-pmic"); From patchwork Tue May 25 10:15:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278305 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 65FFDC47086 for ; 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[2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id t13sm2037713lji.19.2021.05.25.03.15.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:15:17 -0700 (PDT) Date: Tue, 25 May 2021 13:15:10 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 5/9] clk: bd718xx: Drop BD70528 support Message-ID: <937ed0828486a08e2d00bce2815d491c1c9c49b4.1621937490.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen --- Please let me know if some of you think the driver is needed. --- drivers/clk/Kconfig | 6 +++--- drivers/clk/clk-bd718x7.c | 11 ++--------- 2 files changed, 5 insertions(+), 12 deletions(-) diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index e80918be8e9c..84983cd6029c 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -358,10 +358,10 @@ config COMMON_CLK_MMP2_AUDIO config COMMON_CLK_BD718XX tristate "Clock driver for 32K clk gates on ROHM PMICs" - depends on MFD_ROHM_BD718XX || MFD_ROHM_BD70528 || MFD_ROHM_BD71828 + depends on MFD_ROHM_BD718XX || MFD_ROHM_BD71828 help - This driver supports ROHM BD71837, ROHM BD71847, ROHM BD71828 and - ROHM BD70528 PMICs clock gates. + This driver supports ROHM BD71837, BD71847, BD71850, BD71815 + and BD71828 PMICs clock gates. config COMMON_CLK_FIXED_MMIO bool "Clock driver for Memory Mapped Fixed values" diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c index d9e70e506d18..ac40b669d60b 100644 --- a/drivers/clk/clk-bd718x7.c +++ b/drivers/clk/clk-bd718x7.c @@ -15,15 +15,13 @@ /* clk control registers */ /* BD71815 */ #define BD71815_REG_OUT32K 0x1d -/* BD70528 */ -#define BD70528_REG_OUT32K 0x2c /* BD71828 */ #define BD71828_REG_OUT32K 0x4B /* BD71837 and BD71847 */ #define BD718XX_REG_OUT32K 0x2E /* - * BD71837, BD71847, BD70528 and BD71828 all use bit [0] to clk output control + * BD71837, BD71847, and BD71828 all use bit [0] to clk output control */ #define CLK_OUT_EN_MASK BIT(0) @@ -116,10 +114,6 @@ static int bd71837_clk_probe(struct platform_device *pdev) c->reg = BD71828_REG_OUT32K; c->mask = CLK_OUT_EN_MASK; break; - case ROHM_CHIP_TYPE_BD70528: - c->reg = BD70528_REG_OUT32K; - c->mask = CLK_OUT_EN_MASK; - break; case ROHM_CHIP_TYPE_BD71815: c->reg = BD71815_REG_OUT32K; c->mask = CLK_OUT_EN_MASK; @@ -150,7 +144,6 @@ static int bd71837_clk_probe(struct platform_device *pdev) static const struct platform_device_id bd718x7_clk_id[] = { { "bd71837-clk", ROHM_CHIP_TYPE_BD71837 }, { "bd71847-clk", ROHM_CHIP_TYPE_BD71847 }, - { "bd70528-clk", ROHM_CHIP_TYPE_BD70528 }, { "bd71828-clk", ROHM_CHIP_TYPE_BD71828 }, { "bd71815-clk", ROHM_CHIP_TYPE_BD71815 }, { }, @@ -168,6 +161,6 @@ static struct platform_driver bd71837_clk = { module_platform_driver(bd71837_clk); MODULE_AUTHOR("Matti Vaittinen "); -MODULE_DESCRIPTION("BD718(15/18/28/37/47/50) and BD70528 chip clk driver"); +MODULE_DESCRIPTION("BD718(15/18/28/37/47/50) and chip clk driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:bd718xx-clk"); From patchwork Tue May 25 10:15:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278307 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 CD2E6C47087 for ; Tue, 25 May 2021 10:15:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A541761417 for ; Tue, 25 May 2021 10:15:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231127AbhEYKRM (ORCPT ); Tue, 25 May 2021 06:17:12 -0400 Received: from mail-lf1-f43.google.com ([209.85.167.43]:44014 "EHLO mail-lf1-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230480AbhEYKRJ (ORCPT ); Tue, 25 May 2021 06:17:09 -0400 Received: by mail-lf1-f43.google.com with SMTP id i22so45010690lfl.10; Tue, 25 May 2021 03:15:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=seZUu0kly7qUQY9D4WEj572AA9PWt5Avbkieq9/ZXZc=; b=cn7d7sc01tkIaW7uxAq0pYM0GjK+nhQ1eDTn3QnZ1HID9fLBD4a67QXCdwby65bMjn IlgShg/vtMLoq9q2lPgNsyoIN10IEnd7mYg5YjPSd/hXDS70vqPpql+UNYIV8RLPLCKE 3m8YWGo72BQCUgvuA3nzi7mUzWAOUf4vfaAEBcM0VTRaUgvw6sIg2rGQYQkz5ZozWqyZ fmPlfi7jAmcQJJdgzQidORkfoqF2ZFJEcpWKbE/BEAYbfNCdKk5aAwtk3TB+arPLLX44 GtlaVDuS2tRGA7Qx7/6QXkf6UQ/33KEl/Q6UirYh/l8g4/uEA/M9qOCXz1IL97qp8Oj6 OJNA== X-Gm-Message-State: AOAM531ozdH8QsxQm1R+AjRHKzzJ6GbxIP+1lZqJTD1RdUJMRqRMITnO caqnBjOdLUpwvOCqV0vKam+VTVCoerA= X-Google-Smtp-Source: ABdhPJx+qpJC2nnOjZ73A+e3qxugGIF5D53AQJ6Hrzv34fBPhixap0lgJUeCTQBdMurQMf3KZG9IFQ== X-Received: by 2002:a05:6512:3287:: with SMTP id p7mr13789924lfe.394.1621937736341; Tue, 25 May 2021 03:15:36 -0700 (PDT) Received: from localhost.localdomain (dc7vkhyyyyyyyyyyyyycy-3.rev.dnainternet.fi. [2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id z21sm2041357ljh.122.2021.05.25.03.15.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:15:35 -0700 (PDT) Date: Tue, 25 May 2021 13:15:29 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 6/9] gpio: bd70528 Drop BD70528 support Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen Acked-by: Bartosz Golaszewski --- Please let me know if some of you think the driver is needed. --- drivers/gpio/Kconfig | 11 -- drivers/gpio/Makefile | 1 - drivers/gpio/gpio-bd70528.c | 230 ------------------------------------ 3 files changed, 242 deletions(-) delete mode 100644 drivers/gpio/gpio-bd70528.c diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 1dd0ec6727fd..459ec388cc00 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1106,17 +1106,6 @@ config GPIO_ARIZONA help Support for GPIOs on Wolfson Arizona class devices. -config GPIO_BD70528 - tristate "ROHM BD70528 GPIO support" - depends on MFD_ROHM_BD70528 - help - Support for GPIOs on ROHM BD70528 PMIC. There are four GPIOs - available on the ROHM PMIC in total. The GPIOs can also - generate interrupts. - - This driver can also be built as a module. If so, the module - will be called gpio-bd70528. - config GPIO_BD71815 tristate "ROHM BD71815 PMIC GPIO support" depends on MFD_ROHM_BD71828 diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index d7c81e1611a4..e9c4423b582a 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -38,7 +38,6 @@ obj-$(CONFIG_GPIO_ASPEED_SGPIO) += gpio-aspeed-sgpio.o obj-$(CONFIG_GPIO_ATH79) += gpio-ath79.o obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o obj-$(CONFIG_GPIO_BCM_XGS_IPROC) += gpio-xgs-iproc.o -obj-$(CONFIG_GPIO_BD70528) += gpio-bd70528.o obj-$(CONFIG_GPIO_BD71815) += gpio-bd71815.o obj-$(CONFIG_GPIO_BD71828) += gpio-bd71828.o obj-$(CONFIG_GPIO_BD9571MWV) += gpio-bd9571mwv.o diff --git a/drivers/gpio/gpio-bd70528.c b/drivers/gpio/gpio-bd70528.c deleted file mode 100644 index 397a50d6bc65..000000000000 --- a/drivers/gpio/gpio-bd70528.c +++ /dev/null @@ -1,230 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// Copyright (C) 2018 ROHM Semiconductors -// gpio-bd70528.c ROHM BD70528MWV gpio driver - -#include -#include -#include -#include -#include - -#define GPIO_IN_REG(offset) (BD70528_REG_GPIO1_IN + (offset) * 2) -#define GPIO_OUT_REG(offset) (BD70528_REG_GPIO1_OUT + (offset) * 2) - -struct bd70528_gpio { - struct regmap *regmap; - struct device *dev; - struct gpio_chip gpio; -}; - -static int bd70528_set_debounce(struct bd70528_gpio *bdgpio, - unsigned int offset, unsigned int debounce) -{ - u8 val; - - switch (debounce) { - case 0: - val = BD70528_DEBOUNCE_DISABLE; - break; - case 1 ... 15000: - val = BD70528_DEBOUNCE_15MS; - break; - case 15001 ... 30000: - val = BD70528_DEBOUNCE_30MS; - break; - case 30001 ... 50000: - val = BD70528_DEBOUNCE_50MS; - break; - default: - dev_err(bdgpio->dev, - "Invalid debounce value %u\n", debounce); - return -EINVAL; - } - return regmap_update_bits(bdgpio->regmap, GPIO_IN_REG(offset), - BD70528_DEBOUNCE_MASK, val); -} - -static int bd70528_get_direction(struct gpio_chip *chip, unsigned int offset) -{ - struct bd70528_gpio *bdgpio = gpiochip_get_data(chip); - int val, ret; - - /* Do we need to do something to IRQs here? */ - ret = regmap_read(bdgpio->regmap, GPIO_OUT_REG(offset), &val); - if (ret) { - dev_err(bdgpio->dev, "Could not read gpio direction\n"); - return ret; - } - if (val & BD70528_GPIO_OUT_EN_MASK) - return GPIO_LINE_DIRECTION_OUT; - - return GPIO_LINE_DIRECTION_IN; -} - -static int bd70528_gpio_set_config(struct gpio_chip *chip, unsigned int offset, - unsigned long config) -{ - struct bd70528_gpio *bdgpio = gpiochip_get_data(chip); - - switch (pinconf_to_config_param(config)) { - case PIN_CONFIG_DRIVE_OPEN_DRAIN: - return regmap_update_bits(bdgpio->regmap, - GPIO_OUT_REG(offset), - BD70528_GPIO_DRIVE_MASK, - BD70528_GPIO_OPEN_DRAIN); - break; - case PIN_CONFIG_DRIVE_PUSH_PULL: - return regmap_update_bits(bdgpio->regmap, - GPIO_OUT_REG(offset), - BD70528_GPIO_DRIVE_MASK, - BD70528_GPIO_PUSH_PULL); - break; - case PIN_CONFIG_INPUT_DEBOUNCE: - return bd70528_set_debounce(bdgpio, offset, - pinconf_to_config_argument(config)); - break; - default: - break; - } - return -ENOTSUPP; -} - -static int bd70528_direction_input(struct gpio_chip *chip, unsigned int offset) -{ - struct bd70528_gpio *bdgpio = gpiochip_get_data(chip); - - /* Do we need to do something to IRQs here? */ - return regmap_update_bits(bdgpio->regmap, GPIO_OUT_REG(offset), - BD70528_GPIO_OUT_EN_MASK, - BD70528_GPIO_OUT_DISABLE); -} - -static void bd70528_gpio_set(struct gpio_chip *chip, unsigned int offset, - int value) -{ - int ret; - struct bd70528_gpio *bdgpio = gpiochip_get_data(chip); - u8 val = (value) ? BD70528_GPIO_OUT_HI : BD70528_GPIO_OUT_LO; - - ret = regmap_update_bits(bdgpio->regmap, GPIO_OUT_REG(offset), - BD70528_GPIO_OUT_MASK, val); - if (ret) - dev_err(bdgpio->dev, "Could not set gpio to %d\n", value); -} - -static int bd70528_direction_output(struct gpio_chip *chip, unsigned int offset, - int value) -{ - struct bd70528_gpio *bdgpio = gpiochip_get_data(chip); - - bd70528_gpio_set(chip, offset, value); - return regmap_update_bits(bdgpio->regmap, GPIO_OUT_REG(offset), - BD70528_GPIO_OUT_EN_MASK, - BD70528_GPIO_OUT_ENABLE); -} - -#define GPIO_IN_STATE_MASK(offset) (BD70528_GPIO_IN_STATE_BASE << (offset)) - -static int bd70528_gpio_get_o(struct bd70528_gpio *bdgpio, unsigned int offset) -{ - int ret; - unsigned int val; - - ret = regmap_read(bdgpio->regmap, GPIO_OUT_REG(offset), &val); - if (!ret) - ret = !!(val & BD70528_GPIO_OUT_MASK); - else - dev_err(bdgpio->dev, "GPIO (out) state read failed\n"); - - return ret; -} - -static int bd70528_gpio_get_i(struct bd70528_gpio *bdgpio, unsigned int offset) -{ - unsigned int val; - int ret; - - ret = regmap_read(bdgpio->regmap, BD70528_REG_GPIO_STATE, &val); - - if (!ret) - ret = !(val & GPIO_IN_STATE_MASK(offset)); - else - dev_err(bdgpio->dev, "GPIO (in) state read failed\n"); - - return ret; -} - -static int bd70528_gpio_get(struct gpio_chip *chip, unsigned int offset) -{ - int ret; - struct bd70528_gpio *bdgpio = gpiochip_get_data(chip); - - /* - * There is a race condition where someone might be changing the - * GPIO direction after we get it but before we read the value. But - * application design where GPIO direction may be changed just when - * we read GPIO value would be pointless as reader could not know - * whether the returned high/low state is caused by input or output. - * Or then there must be other ways to mitigate the issue. Thus - * locking would make no sense. - */ - ret = bd70528_get_direction(chip, offset); - if (ret == GPIO_LINE_DIRECTION_OUT) - ret = bd70528_gpio_get_o(bdgpio, offset); - else if (ret == GPIO_LINE_DIRECTION_IN) - ret = bd70528_gpio_get_i(bdgpio, offset); - else - dev_err(bdgpio->dev, "failed to read GPIO direction\n"); - - return ret; -} - -static int bd70528_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct bd70528_gpio *bdgpio; - int ret; - - bdgpio = devm_kzalloc(dev, sizeof(*bdgpio), GFP_KERNEL); - if (!bdgpio) - return -ENOMEM; - bdgpio->dev = dev; - bdgpio->gpio.parent = dev->parent; - bdgpio->gpio.label = "bd70528-gpio"; - bdgpio->gpio.owner = THIS_MODULE; - bdgpio->gpio.get_direction = bd70528_get_direction; - bdgpio->gpio.direction_input = bd70528_direction_input; - bdgpio->gpio.direction_output = bd70528_direction_output; - bdgpio->gpio.set_config = bd70528_gpio_set_config; - bdgpio->gpio.can_sleep = true; - bdgpio->gpio.get = bd70528_gpio_get; - bdgpio->gpio.set = bd70528_gpio_set; - bdgpio->gpio.ngpio = 4; - bdgpio->gpio.base = -1; -#ifdef CONFIG_OF_GPIO - bdgpio->gpio.of_node = dev->parent->of_node; -#endif - bdgpio->regmap = dev_get_regmap(dev->parent, NULL); - if (!bdgpio->regmap) - return -ENODEV; - - ret = devm_gpiochip_add_data(dev, &bdgpio->gpio, bdgpio); - if (ret) - dev_err(dev, "gpio_init: Failed to add bd70528-gpio\n"); - - return ret; -} - -static struct platform_driver bd70528_gpio = { - .driver = { - .name = "bd70528-gpio" - }, - .probe = bd70528_probe, -}; - -module_platform_driver(bd70528_gpio); - -MODULE_AUTHOR("Matti Vaittinen "); -MODULE_DESCRIPTION("BD70528 voltage regulator driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:bd70528-gpio"); From patchwork Tue May 25 10:15:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278309 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4D0E8C47084 for ; Tue, 25 May 2021 10:16:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 288B961417 for ; Tue, 25 May 2021 10:16:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231189AbhEYKRq (ORCPT ); Tue, 25 May 2021 06:17:46 -0400 Received: from mail-lj1-f182.google.com ([209.85.208.182]:33320 "EHLO mail-lj1-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231190AbhEYKR1 (ORCPT ); Tue, 25 May 2021 06:17:27 -0400 Received: by mail-lj1-f182.google.com with SMTP id o8so37448204ljp.0; Tue, 25 May 2021 03:15:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=tCXj2hFRK4r9qVCDTJqNtXsR+M0GEZxH/E4B0bqbPDQ=; b=QZSwoMRHHiUmkewM1c/iS+1iOOshv5c1DmXmfJlFmHK2ZI2r3/JBQlPyjeI05nOCfB 3WBhNnQKY1MMJSbC1a8NQLvmthCnNydpGk9vws4ukjgGDWXMZ2fRUY+TccogRFGg20yQ Z+BAOU/qY+E9cbBtbeU47RLFPSYs1jfaiyMz8Vrrz78Si4T6m9bqBmcij6xXuFUIUOeD aBlojIeofZhBNGsbuYNmtqNEdYe1pcKodpWqcxzY6ApEg6Rbre1/Zy9OF7kRyoYvyZLa LKkD7dVxNirdPMhg766y6TLUQyixZSYfPEtLNYHzNCN5TmeCbIohw4G8dhouAudrj06i EXsA== X-Gm-Message-State: AOAM531SWbsx7uAzrHP4vwO2MbhhaE4efeZ3kWxEP0qeouG9D7N728Wz pvHqIaxelu+jfdRnk7Uiy1I= X-Google-Smtp-Source: ABdhPJxXZUbqkNTam0NV3p8DCdK6Hg0Wv4OGeGL1bMq1/Gz1sdOXUZXD4YrbVyC2CCRK2t8z7QcUAw== X-Received: by 2002:a2e:b550:: with SMTP id a16mr17847704ljn.323.1621937754756; Tue, 25 May 2021 03:15:54 -0700 (PDT) Received: from localhost.localdomain (dc7vkhyyyyyyyyyyyyycy-3.rev.dnainternet.fi. [2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id m5sm2051610ljg.118.2021.05.25.03.15.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:15:54 -0700 (PDT) Date: Tue, 25 May 2021 13:15:47 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 7/9] power: supply: Drop BD70528 support Message-ID: <0d9ca725f04fa54521961e1a33e972888c488879.1621937490.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen --- Please let me know if some of you think the driver is needed. --- drivers/power/supply/Kconfig | 9 - drivers/power/supply/Makefile | 1 - drivers/power/supply/bd70528-charger.c | 710 ------------------------- 3 files changed, 720 deletions(-) delete mode 100644 drivers/power/supply/bd70528-charger.c diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index e696364126f1..b99d19f48769 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -760,15 +760,6 @@ config CHARGER_UCS1002 Say Y to enable support for Microchip UCS1002 Programmable USB Port Power Controller with Charger Emulation. -config CHARGER_BD70528 - tristate "ROHM bd70528 charger driver" - depends on MFD_ROHM_BD70528 - select LINEAR_RANGES - help - Say Y here to enable support for getting battery status - information and altering charger configurations from charger - block of the ROHM BD70528 Power Management IC. - config CHARGER_BD99954 tristate "ROHM bd99954 charger driver" depends on I2C diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile index a7309a3d1a47..7ad7d9a05523 100644 --- a/drivers/power/supply/Makefile +++ b/drivers/power/supply/Makefile @@ -96,7 +96,6 @@ obj-$(CONFIG_CHARGER_CROS_USBPD) += cros_usbpd-charger.o obj-$(CONFIG_CHARGER_SC2731) += sc2731_charger.o obj-$(CONFIG_FUEL_GAUGE_SC27XX) += sc27xx_fuel_gauge.o obj-$(CONFIG_CHARGER_UCS1002) += ucs1002_power.o -obj-$(CONFIG_CHARGER_BD70528) += bd70528-charger.o obj-$(CONFIG_CHARGER_BD99954) += bd99954-charger.o obj-$(CONFIG_CHARGER_WILCO) += wilco-charger.o obj-$(CONFIG_RN5T618_POWER) += rn5t618_power.o diff --git a/drivers/power/supply/bd70528-charger.c b/drivers/power/supply/bd70528-charger.c deleted file mode 100644 index 7c1f0b99c71b..000000000000 --- a/drivers/power/supply/bd70528-charger.c +++ /dev/null @@ -1,710 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -// -// Copyright (C) 2018 ROHM Semiconductors -// -// power-supply driver for ROHM BD70528 PMIC - -/* - * BD70528 charger HW state machine. - * - * The thermal shutdown state is not drawn. From any other state but - * battery error and suspend it is possible to go to TSD/TMP states - * if temperature is out of bounds. - * - * CHG_RST = H - * or CHG_EN=L - * or (DCIN2_UVLO=L && DCIN1_UVLO=L) - * or (DCIN2_OVLO=H & DCIN1_UVKLO=L) - * - * +--------------+ +--------------+ - * | | | | - * | Any state +-------> | Suspend | - * | | | | - * +--------------+ +------+-------+ - * | - * CHG_EN = H && BAT_DET = H && | - * No errors (temp, bat_ov, UVLO, | - * OVLO...) | - * | - * BAT_OV or +---------v----------+ - * (DBAT && TTRI) | | - * +-----------------+ Trickle Charge | <---------------+ - * | | | | - * | +-------+------------+ | - * | | | - * | | ^ | - * | V_BAT > VTRI_TH | | VBAT < VTRI_TH - 50mV | - * | | | | - * | v | | - * | | | - * | BAT_OV or +----------+----+ | - * | (DBAT && TFST) | | | - * | +----------------+ Fast Charge | | - * | | | | | - * v v +----+----------+ | - * | | - *+----------------+ ILIM_DET=L | ^ ILIM_DET | - *| | & CV_DET=H | | or CV_DET=L | - *| Battery Error | & VBAT > | | or VBAT < VRECHG_TH | - *| | VRECHG_TH | | or IBAT > IFST/x | - *+----------------+ & IBAT < | | | - * IFST/x v | | - * ^ | | - * | +---------+-+ | - * | | | | - * +-------------------+ Top OFF | | - * BAT_OV = H or | | | - * (DBAT && TFST) +-----+-----+ | - * | | - * Stay top-off for 15s | | - * v | - * | - * +--------+ | - * | | | - * | Done +-------------------------+ - * | | - * +--------+ VBAT < VRECHG_TH - */ - -#include -#include -#include -#include -#include -#include -#include - -#define CHG_STAT_SUSPEND 0x0 -#define CHG_STAT_TRICKLE 0x1 -#define CHG_STAT_FAST 0x3 -#define CHG_STAT_TOPOFF 0xe -#define CHG_STAT_DONE 0xf -#define CHG_STAT_OTP_TRICKLE 0x10 -#define CHG_STAT_OTP_FAST 0x11 -#define CHG_STAT_OTP_DONE 0x12 -#define CHG_STAT_TSD_TRICKLE 0x20 -#define CHG_STAT_TSD_FAST 0x21 -#define CHG_STAT_TSD_TOPOFF 0x22 -#define CHG_STAT_BAT_ERR 0x7f - -static const char *bd70528_charger_model = "BD70528"; -static const char *bd70528_charger_manufacturer = "ROHM Semiconductors"; - -#define BD_ERR_IRQ_HND(_name_, _wrn_) \ -static irqreturn_t bd0528_##_name_##_interrupt(int irq, void *arg) \ -{ \ - struct power_supply *psy = (struct power_supply *)arg; \ - \ - power_supply_changed(psy); \ - dev_err(&psy->dev, (_wrn_)); \ - \ - return IRQ_HANDLED; \ -} - -#define BD_INFO_IRQ_HND(_name_, _wrn_) \ -static irqreturn_t bd0528_##_name_##_interrupt(int irq, void *arg) \ -{ \ - struct power_supply *psy = (struct power_supply *)arg; \ - \ - power_supply_changed(psy); \ - dev_dbg(&psy->dev, (_wrn_)); \ - \ - return IRQ_HANDLED; \ -} - -#define BD_IRQ_HND(_name_) bd0528_##_name_##_interrupt - -struct bd70528_psy { - struct regmap *regmap; - struct device *dev; - struct power_supply *psy; -}; - -BD_ERR_IRQ_HND(BAT_OV_DET, "Battery overvoltage detected\n"); -BD_ERR_IRQ_HND(DBAT_DET, "Dead battery detected\n"); -BD_ERR_IRQ_HND(COLD_DET, "Battery cold\n"); -BD_ERR_IRQ_HND(HOT_DET, "Battery hot\n"); -BD_ERR_IRQ_HND(CHG_TSD, "Charger thermal shutdown\n"); -BD_ERR_IRQ_HND(DCIN2_OV_DET, "DCIN2 overvoltage detected\n"); - -BD_INFO_IRQ_HND(BAT_OV_RES, "Battery voltage back to normal\n"); -BD_INFO_IRQ_HND(COLD_RES, "Battery temperature back to normal\n"); -BD_INFO_IRQ_HND(HOT_RES, "Battery temperature back to normal\n"); -BD_INFO_IRQ_HND(BAT_RMV, "Battery removed\n"); -BD_INFO_IRQ_HND(BAT_DET, "Battery detected\n"); -BD_INFO_IRQ_HND(DCIN2_OV_RES, "DCIN2 voltage back to normal\n"); -BD_INFO_IRQ_HND(DCIN2_RMV, "DCIN2 removed\n"); -BD_INFO_IRQ_HND(DCIN2_DET, "DCIN2 detected\n"); -BD_INFO_IRQ_HND(DCIN1_RMV, "DCIN1 removed\n"); -BD_INFO_IRQ_HND(DCIN1_DET, "DCIN1 detected\n"); - -struct irq_name_pair { - const char *n; - irqreturn_t (*h)(int irq, void *arg); -}; - -static int bd70528_get_irqs(struct platform_device *pdev, - struct bd70528_psy *bdpsy) -{ - int irq, i, ret; - unsigned int mask; - static const struct irq_name_pair bd70528_chg_irqs[] = { - { .n = "bd70528-bat-ov-res", .h = BD_IRQ_HND(BAT_OV_RES) }, - { .n = "bd70528-bat-ov-det", .h = BD_IRQ_HND(BAT_OV_DET) }, - { .n = "bd70528-bat-dead", .h = BD_IRQ_HND(DBAT_DET) }, - { .n = "bd70528-bat-warmed", .h = BD_IRQ_HND(COLD_RES) }, - { .n = "bd70528-bat-cold", .h = BD_IRQ_HND(COLD_DET) }, - { .n = "bd70528-bat-cooled", .h = BD_IRQ_HND(HOT_RES) }, - { .n = "bd70528-bat-hot", .h = BD_IRQ_HND(HOT_DET) }, - { .n = "bd70528-chg-tshd", .h = BD_IRQ_HND(CHG_TSD) }, - { .n = "bd70528-bat-removed", .h = BD_IRQ_HND(BAT_RMV) }, - { .n = "bd70528-bat-detected", .h = BD_IRQ_HND(BAT_DET) }, - { .n = "bd70528-dcin2-ov-res", .h = BD_IRQ_HND(DCIN2_OV_RES) }, - { .n = "bd70528-dcin2-ov-det", .h = BD_IRQ_HND(DCIN2_OV_DET) }, - { .n = "bd70528-dcin2-removed", .h = BD_IRQ_HND(DCIN2_RMV) }, - { .n = "bd70528-dcin2-detected", .h = BD_IRQ_HND(DCIN2_DET) }, - { .n = "bd70528-dcin1-removed", .h = BD_IRQ_HND(DCIN1_RMV) }, - { .n = "bd70528-dcin1-detected", .h = BD_IRQ_HND(DCIN1_DET) }, - }; - - for (i = 0; i < ARRAY_SIZE(bd70528_chg_irqs); i++) { - irq = platform_get_irq_byname(pdev, bd70528_chg_irqs[i].n); - if (irq < 0) { - dev_err(&pdev->dev, "Bad IRQ information for %s (%d)\n", - bd70528_chg_irqs[i].n, irq); - return irq; - } - ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, - bd70528_chg_irqs[i].h, - IRQF_ONESHOT, - bd70528_chg_irqs[i].n, - bdpsy->psy); - - if (ret) - return ret; - } - /* - * BD70528 irq controller is not touching the main mask register. - * So enable the charger block interrupts at main level. We can just - * leave them enabled as irq-controller should disable irqs - * from sub-registers when IRQ is disabled or freed. - */ - mask = BD70528_REG_INT_BAT1_MASK | BD70528_REG_INT_BAT2_MASK; - ret = regmap_update_bits(bdpsy->regmap, - BD70528_REG_INT_MAIN_MASK, mask, 0); - if (ret) - dev_err(&pdev->dev, "Failed to enable charger IRQs\n"); - - return ret; -} - -static int bd70528_get_charger_status(struct bd70528_psy *bdpsy, int *val) -{ - int ret; - unsigned int v; - - ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_CURR_STAT, &v); - if (ret) { - dev_err(bdpsy->dev, "Charger state read failure %d\n", - ret); - return ret; - } - - switch (v & BD70528_MASK_CHG_STAT) { - case CHG_STAT_SUSPEND: - /* Maybe we should check the CHG_TTRI_EN? */ - case CHG_STAT_OTP_TRICKLE: - case CHG_STAT_OTP_FAST: - case CHG_STAT_OTP_DONE: - case CHG_STAT_TSD_TRICKLE: - case CHG_STAT_TSD_FAST: - case CHG_STAT_TSD_TOPOFF: - case CHG_STAT_BAT_ERR: - *val = POWER_SUPPLY_STATUS_NOT_CHARGING; - break; - case CHG_STAT_DONE: - *val = POWER_SUPPLY_STATUS_FULL; - break; - case CHG_STAT_TRICKLE: - case CHG_STAT_FAST: - case CHG_STAT_TOPOFF: - *val = POWER_SUPPLY_STATUS_CHARGING; - break; - default: - *val = POWER_SUPPLY_STATUS_UNKNOWN; - break; - } - - return 0; -} - -static int bd70528_get_charge_type(struct bd70528_psy *bdpsy, int *val) -{ - int ret; - unsigned int v; - - ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_CURR_STAT, &v); - if (ret) { - dev_err(bdpsy->dev, "Charger state read failure %d\n", - ret); - return ret; - } - - switch (v & BD70528_MASK_CHG_STAT) { - case CHG_STAT_TRICKLE: - *val = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; - break; - case CHG_STAT_FAST: - case CHG_STAT_TOPOFF: - *val = POWER_SUPPLY_CHARGE_TYPE_FAST; - break; - case CHG_STAT_DONE: - case CHG_STAT_SUSPEND: - /* Maybe we should check the CHG_TTRI_EN? */ - case CHG_STAT_OTP_TRICKLE: - case CHG_STAT_OTP_FAST: - case CHG_STAT_OTP_DONE: - case CHG_STAT_TSD_TRICKLE: - case CHG_STAT_TSD_FAST: - case CHG_STAT_TSD_TOPOFF: - case CHG_STAT_BAT_ERR: - *val = POWER_SUPPLY_CHARGE_TYPE_NONE; - break; - default: - *val = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; - break; - } - - return 0; -} - -static int bd70528_get_battery_health(struct bd70528_psy *bdpsy, int *val) -{ - int ret; - unsigned int v; - - ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_BAT_STAT, &v); - if (ret) { - dev_err(bdpsy->dev, "Battery state read failure %d\n", - ret); - return ret; - } - /* No battery? */ - if (!(v & BD70528_MASK_CHG_BAT_DETECT)) - *val = POWER_SUPPLY_HEALTH_DEAD; - else if (v & BD70528_MASK_CHG_BAT_OVERVOLT) - *val = POWER_SUPPLY_HEALTH_OVERVOLTAGE; - else if (v & BD70528_MASK_CHG_BAT_TIMER) - *val = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE; - else - *val = POWER_SUPPLY_HEALTH_GOOD; - - return 0; -} - -static int bd70528_get_online(struct bd70528_psy *bdpsy, int *val) -{ - int ret; - unsigned int v; - - ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_IN_STAT, &v); - if (ret) { - dev_err(bdpsy->dev, "DC1 IN state read failure %d\n", - ret); - return ret; - } - - *val = (v & BD70528_MASK_CHG_DCIN1_UVLO) ? 1 : 0; - - return 0; -} - -static int bd70528_get_present(struct bd70528_psy *bdpsy, int *val) -{ - int ret; - unsigned int v; - - ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_BAT_STAT, &v); - if (ret) { - dev_err(bdpsy->dev, "Battery state read failure %d\n", - ret); - return ret; - } - - *val = (v & BD70528_MASK_CHG_BAT_DETECT) ? 1 : 0; - - return 0; -} - -static const struct linear_range current_limit_ranges[] = { - { - .min = 5, - .step = 1, - .min_sel = 0, - .max_sel = 0x22, - }, - { - .min = 40, - .step = 5, - .min_sel = 0x23, - .max_sel = 0x26, - }, - { - .min = 60, - .step = 20, - .min_sel = 0x27, - .max_sel = 0x2d, - }, - { - .min = 200, - .step = 50, - .min_sel = 0x2e, - .max_sel = 0x34, - }, - { - .min = 500, - .step = 0, - .min_sel = 0x35, - .max_sel = 0x3f, - }, -}; - -/* - * BD70528 would support setting and getting own charge current/ - * voltage for low temperatures. The driver currently only reads - * the charge current at room temperature. We do set both though. - */ -static const struct linear_range warm_charge_curr[] = { - { - .min = 10, - .step = 10, - .min_sel = 0, - .max_sel = 0x12, - }, - { - .min = 200, - .step = 25, - .min_sel = 0x13, - .max_sel = 0x1f, - }, -}; - -/* - * Cold charge current selectors are identical to warm charge current - * selectors. The difference is that only smaller currents are available - * at cold charge range. - */ -#define MAX_COLD_CHG_CURR_SEL 0x15 -#define MAX_WARM_CHG_CURR_SEL 0x1f -#define MIN_CHG_CURR_SEL 0x0 - -static int get_charge_current(struct bd70528_psy *bdpsy, int *ma) -{ - unsigned int sel; - int ret; - - ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_CHG_CURR_WARM, - &sel); - if (ret) { - dev_err(bdpsy->dev, - "Charge current reading failed (%d)\n", ret); - return ret; - } - - sel &= BD70528_MASK_CHG_CHG_CURR; - - ret = linear_range_get_value_array(&warm_charge_curr[0], - ARRAY_SIZE(warm_charge_curr), - sel, ma); - if (ret) { - dev_err(bdpsy->dev, - "Unknown charge current value 0x%x\n", - sel); - } - - return ret; -} - -static int get_current_limit(struct bd70528_psy *bdpsy, int *ma) -{ - unsigned int sel; - int ret; - - ret = regmap_read(bdpsy->regmap, BD70528_REG_CHG_DCIN_ILIM, - &sel); - - if (ret) { - dev_err(bdpsy->dev, - "Input current limit reading failed (%d)\n", ret); - return ret; - } - - sel &= BD70528_MASK_CHG_DCIN_ILIM; - - ret = linear_range_get_value_array(¤t_limit_ranges[0], - ARRAY_SIZE(current_limit_ranges), - sel, ma); - if (ret) { - /* Unspecified values mean 500 mA */ - *ma = 500; - } - return 0; -} - -static enum power_supply_property bd70528_charger_props[] = { - POWER_SUPPLY_PROP_STATUS, - POWER_SUPPLY_PROP_CHARGE_TYPE, - POWER_SUPPLY_PROP_HEALTH, - POWER_SUPPLY_PROP_PRESENT, - POWER_SUPPLY_PROP_ONLINE, - POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, - POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, - POWER_SUPPLY_PROP_MODEL_NAME, - POWER_SUPPLY_PROP_MANUFACTURER, -}; - -static int bd70528_charger_get_property(struct power_supply *psy, - enum power_supply_property psp, - union power_supply_propval *val) -{ - struct bd70528_psy *bdpsy = power_supply_get_drvdata(psy); - int ret = 0; - - switch (psp) { - case POWER_SUPPLY_PROP_STATUS: - return bd70528_get_charger_status(bdpsy, &val->intval); - case POWER_SUPPLY_PROP_CHARGE_TYPE: - return bd70528_get_charge_type(bdpsy, &val->intval); - case POWER_SUPPLY_PROP_HEALTH: - return bd70528_get_battery_health(bdpsy, &val->intval); - case POWER_SUPPLY_PROP_PRESENT: - return bd70528_get_present(bdpsy, &val->intval); - case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: - ret = get_current_limit(bdpsy, &val->intval); - val->intval *= 1000; - return ret; - case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: - ret = get_charge_current(bdpsy, &val->intval); - val->intval *= 1000; - return ret; - case POWER_SUPPLY_PROP_ONLINE: - return bd70528_get_online(bdpsy, &val->intval); - case POWER_SUPPLY_PROP_MODEL_NAME: - val->strval = bd70528_charger_model; - return 0; - case POWER_SUPPLY_PROP_MANUFACTURER: - val->strval = bd70528_charger_manufacturer; - return 0; - default: - break; - } - - return -EINVAL; -} - -static int bd70528_prop_is_writable(struct power_supply *psy, - enum power_supply_property psp) -{ - switch (psp) { - case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: - case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: - return 1; - default: - break; - } - return 0; -} - -static int set_charge_current(struct bd70528_psy *bdpsy, int ma) -{ - unsigned int reg; - int ret = 0, tmpret; - bool found; - - if (ma > 500) { - dev_warn(bdpsy->dev, - "Requested charge current %u exceed maximum (500mA)\n", - ma); - reg = MAX_WARM_CHG_CURR_SEL; - goto set; - } - if (ma < 10) { - dev_err(bdpsy->dev, - "Requested charge current %u smaller than min (10mA)\n", - ma); - reg = MIN_CHG_CURR_SEL; - ret = -EINVAL; - goto set; - } - -/* - * For BD70528 voltage/current limits we happily accept any value which - * belongs the range. We could check if value matching the selector is - * desired by computing the range min + (sel - sel_low) * range step - but - * I guess it is enough if we use voltage/current which is closest (below) - * the requested? - */ - - ret = linear_range_get_selector_low_array(warm_charge_curr, - ARRAY_SIZE(warm_charge_curr), - ma, ®, &found); - if (ret) { - dev_err(bdpsy->dev, - "Unsupported charge current %u mA\n", ma); - reg = MIN_CHG_CURR_SEL; - goto set; - } - if (!found) { - /* - * There was a gap in supported values and we hit it. - * Yet a smaller value was found so we use it. - */ - dev_warn(bdpsy->dev, - "Unsupported charge current %u mA\n", ma); - } -set: - - tmpret = regmap_update_bits(bdpsy->regmap, - BD70528_REG_CHG_CHG_CURR_WARM, - BD70528_MASK_CHG_CHG_CURR, reg); - if (tmpret) - dev_err(bdpsy->dev, - "Charge current write failure (%d)\n", tmpret); - - if (reg > MAX_COLD_CHG_CURR_SEL) - reg = MAX_COLD_CHG_CURR_SEL; - - if (!tmpret) - tmpret = regmap_update_bits(bdpsy->regmap, - BD70528_REG_CHG_CHG_CURR_COLD, - BD70528_MASK_CHG_CHG_CURR, reg); - - if (!ret) - ret = tmpret; - - return ret; -} - -#define MAX_CURR_LIMIT_SEL 0x34 -#define MIN_CURR_LIMIT_SEL 0x0 - -static int set_current_limit(struct bd70528_psy *bdpsy, int ma) -{ - unsigned int reg; - int ret = 0, tmpret; - bool found; - - if (ma > 500) { - dev_warn(bdpsy->dev, - "Requested current limit %u exceed maximum (500mA)\n", - ma); - reg = MAX_CURR_LIMIT_SEL; - goto set; - } - if (ma < 5) { - dev_err(bdpsy->dev, - "Requested current limit %u smaller than min (5mA)\n", - ma); - reg = MIN_CURR_LIMIT_SEL; - ret = -EINVAL; - goto set; - } - - ret = linear_range_get_selector_low_array(current_limit_ranges, - ARRAY_SIZE(current_limit_ranges), - ma, ®, &found); - if (ret) { - dev_err(bdpsy->dev, "Unsupported current limit %umA\n", ma); - reg = MIN_CURR_LIMIT_SEL; - goto set; - } - if (!found) { - /* - * There was a gap in supported values and we hit it. - * We found a smaller value from ranges and use it. - * Warn user though. - */ - dev_warn(bdpsy->dev, "Unsupported current limit %umA\n", ma); - } - -set: - tmpret = regmap_update_bits(bdpsy->regmap, - BD70528_REG_CHG_DCIN_ILIM, - BD70528_MASK_CHG_DCIN_ILIM, reg); - - if (!ret) - ret = tmpret; - - return ret; -} - -static int bd70528_charger_set_property(struct power_supply *psy, - enum power_supply_property psp, - const union power_supply_propval *val) -{ - struct bd70528_psy *bdpsy = power_supply_get_drvdata(psy); - - switch (psp) { - case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: - return set_current_limit(bdpsy, val->intval / 1000); - case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: - return set_charge_current(bdpsy, val->intval / 1000); - default: - break; - } - return -EINVAL; -} - -static const struct power_supply_desc bd70528_charger_desc = { - .name = "bd70528-charger", - .type = POWER_SUPPLY_TYPE_MAINS, - .properties = bd70528_charger_props, - .num_properties = ARRAY_SIZE(bd70528_charger_props), - .get_property = bd70528_charger_get_property, - .set_property = bd70528_charger_set_property, - .property_is_writeable = bd70528_prop_is_writable, -}; - -static int bd70528_power_probe(struct platform_device *pdev) -{ - struct bd70528_psy *bdpsy; - struct power_supply_config cfg = {}; - - bdpsy = devm_kzalloc(&pdev->dev, sizeof(*bdpsy), GFP_KERNEL); - if (!bdpsy) - return -ENOMEM; - - bdpsy->regmap = dev_get_regmap(pdev->dev.parent, NULL); - if (!bdpsy->regmap) { - dev_err(&pdev->dev, "No regmap found for chip\n"); - return -EINVAL; - } - bdpsy->dev = &pdev->dev; - - platform_set_drvdata(pdev, bdpsy); - cfg.drv_data = bdpsy; - cfg.of_node = pdev->dev.parent->of_node; - - bdpsy->psy = devm_power_supply_register(&pdev->dev, - &bd70528_charger_desc, &cfg); - if (IS_ERR(bdpsy->psy)) { - dev_err(&pdev->dev, "failed: power supply register\n"); - return PTR_ERR(bdpsy->psy); - } - - return bd70528_get_irqs(pdev, bdpsy); -} - -static struct platform_driver bd70528_power = { - .driver = { - .name = "bd70528-power" - }, - .probe = bd70528_power_probe, -}; - -module_platform_driver(bd70528_power); - -MODULE_AUTHOR("Matti Vaittinen "); -MODULE_DESCRIPTION("BD70528 power-supply driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:bd70528-power"); From patchwork Tue May 25 10:16:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278311 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 980D0C47087 for ; Tue, 25 May 2021 10:16:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7D1D26141D for ; Tue, 25 May 2021 10:16:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231261AbhEYKRr (ORCPT ); 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[2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id w2sm987173ljo.62.2021.05.25.03.16.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:16:11 -0700 (PDT) Date: Tue, 25 May 2021 13:16:05 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 8/9] mfd: bd70528: Drop BD70528 support Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen Acked-by: Lee Jones --- Please let me know if some of you think the driver is needed. --- drivers/mfd/Kconfig | 17 -- drivers/mfd/Makefile | 1 - drivers/mfd/rohm-bd70528.c | 314 ------------------------- include/linux/mfd/rohm-bd70528.h | 391 ------------------------------- include/linux/mfd/rohm-generic.h | 1 - 5 files changed, 724 deletions(-) delete mode 100644 drivers/mfd/rohm-bd70528.c delete mode 100644 include/linux/mfd/rohm-bd70528.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 5c7f2b100191..810f2ef9eba9 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1945,23 +1945,6 @@ config MFD_ROHM_BD718XX NXP i.MX8. It contains 8 BUCK outputs and 7 LDOs, voltage monitoring and emergency shut down as well as 32,768KHz clock output. -config MFD_ROHM_BD70528 - tristate "ROHM BD70528 Power Management IC" - depends on I2C=y - depends on OF - select REGMAP_I2C - select REGMAP_IRQ - select MFD_CORE - help - Select this option to get support for the ROHM BD70528 Power - Management IC. BD71837 is general purpose single-chip power - management IC for battery-powered portable devices. It contains - 3 ultra-low current consumption buck converters, 3 LDOs and 2 LED - drivers. Also included are 4 GPIOs, a real-time clock (RTC), a 32kHz - crystal oscillator, high-accuracy VREF for use with an external ADC, - 10 bits SAR ADC for battery temperature monitor and 1S battery - charger. - config MFD_ROHM_BD71828 tristate "ROHM BD71828 and BD71815 Power Management IC" depends on I2C=y diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 4f6d2b8a5f76..2ce5436bb8d4 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -257,7 +257,6 @@ obj-$(CONFIG_MFD_STM32_TIMERS) += stm32-timers.o obj-$(CONFIG_MFD_MXS_LRADC) += mxs-lradc.o obj-$(CONFIG_MFD_SC27XX_PMIC) += sprd-sc27xx-spi.o obj-$(CONFIG_RAVE_SP_CORE) += rave-sp.o -obj-$(CONFIG_MFD_ROHM_BD70528) += rohm-bd70528.o obj-$(CONFIG_MFD_ROHM_BD71828) += rohm-bd71828.o obj-$(CONFIG_MFD_ROHM_BD718XX) += rohm-bd718x7.o obj-$(CONFIG_MFD_ROHM_BD957XMUF) += rohm-bd9576.o diff --git a/drivers/mfd/rohm-bd70528.c b/drivers/mfd/rohm-bd70528.c deleted file mode 100644 index 5c44d3b77b3e..000000000000 --- a/drivers/mfd/rohm-bd70528.c +++ /dev/null @@ -1,314 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -// -// Copyright (C) 2019 ROHM Semiconductors -// -// ROHM BD70528 PMIC driver - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define BD70528_NUM_OF_GPIOS 4 - -static const struct resource rtc_irqs[] = { - DEFINE_RES_IRQ_NAMED(BD70528_INT_RTC_ALARM, "bd70528-rtc-alm"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_ELPS_TIM, "bd70528-elapsed-timer"), -}; - -static const struct resource charger_irqs[] = { - DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_OV_RES, "bd70528-bat-ov-res"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_OV_DET, "bd70528-bat-ov-det"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_DBAT_DET, "bd70528-bat-dead"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_COLD_RES, "bd70528-bat-warmed"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_COLD_DET, "bd70528-bat-cold"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_HOT_RES, "bd70528-bat-cooled"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_BATTSD_HOT_DET, "bd70528-bat-hot"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_CHG_TSD, "bd70528-chg-tshd"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_RMV, "bd70528-bat-removed"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_BAT_DET, "bd70528-bat-detected"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_OV_RES, "bd70528-dcin2-ov-res"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_OV_DET, "bd70528-dcin2-ov-det"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_RMV, "bd70528-dcin2-removed"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN2_DET, "bd70528-dcin2-detected"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN1_RMV, "bd70528-dcin1-removed"), - DEFINE_RES_IRQ_NAMED(BD70528_INT_DCIN1_DET, "bd70528-dcin1-detected"), -}; - -static struct mfd_cell bd70528_mfd_cells[] = { - { .name = "bd70528-pmic", }, - { .name = "bd70528-gpio", }, - /* - * We use BD71837 driver to drive the clock block. Only differences to - * BD70528 clock gate are the register address and mask. - */ - { .name = "bd70528-clk", }, - { .name = "bd70528-wdt", }, - { - .name = "bd70528-power", - .resources = charger_irqs, - .num_resources = ARRAY_SIZE(charger_irqs), - }, { - .name = "bd70528-rtc", - .resources = rtc_irqs, - .num_resources = ARRAY_SIZE(rtc_irqs), - }, -}; - -static const struct regmap_range volatile_ranges[] = { - { - .range_min = BD70528_REG_INT_MAIN, - .range_max = BD70528_REG_INT_OP_FAIL, - }, { - .range_min = BD70528_REG_RTC_COUNT_H, - .range_max = BD70528_REG_RTC_ALM_REPEAT, - }, { - /* - * WDT control reg is special. Magic values must be written to - * it in order to change the control. Should not be cached. - */ - .range_min = BD70528_REG_WDT_CTRL, - .range_max = BD70528_REG_WDT_CTRL, - }, { - /* - * BD70528 also contains a few other registers which require - * magic sequences to be written in order to update the value. - * At least SHIPMODE, HWRESET, WARMRESET,and STANDBY - */ - .range_min = BD70528_REG_SHIPMODE, - .range_max = BD70528_REG_STANDBY, - }, -}; - -static const struct regmap_access_table volatile_regs = { - .yes_ranges = &volatile_ranges[0], - .n_yes_ranges = ARRAY_SIZE(volatile_ranges), -}; - -static struct regmap_config bd70528_regmap = { - .reg_bits = 8, - .val_bits = 8, - .volatile_table = &volatile_regs, - .max_register = BD70528_MAX_REGISTER, - .cache_type = REGCACHE_RBTREE, -}; - -/* - * Mapping of main IRQ register bits to sub-IRQ register offsets so that we can - * access corect sub-IRQ registers based on bits that are set in main IRQ - * register. - */ - -static unsigned int bit0_offsets[] = {0}; /* Shutdown */ -static unsigned int bit1_offsets[] = {1}; /* Power failure */ -static unsigned int bit2_offsets[] = {2}; /* VR FAULT */ -static unsigned int bit3_offsets[] = {3}; /* PMU interrupts */ -static unsigned int bit4_offsets[] = {4, 5}; /* Charger 1 and Charger 2 */ -static unsigned int bit5_offsets[] = {6}; /* RTC */ -static unsigned int bit6_offsets[] = {7}; /* GPIO */ -static unsigned int bit7_offsets[] = {8}; /* Invalid operation */ - -static struct regmap_irq_sub_irq_map bd70528_sub_irq_offsets[] = { - REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets), - REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets), - REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets), - REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets), - REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets), - REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets), - REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets), - REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets), -}; - -static struct regmap_irq bd70528_irqs[] = { - REGMAP_IRQ_REG(BD70528_INT_LONGPUSH, 0, BD70528_INT_LONGPUSH_MASK), - REGMAP_IRQ_REG(BD70528_INT_WDT, 0, BD70528_INT_WDT_MASK), - REGMAP_IRQ_REG(BD70528_INT_HWRESET, 0, BD70528_INT_HWRESET_MASK), - REGMAP_IRQ_REG(BD70528_INT_RSTB_FAULT, 0, BD70528_INT_RSTB_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_VBAT_UVLO, 0, BD70528_INT_VBAT_UVLO_MASK), - REGMAP_IRQ_REG(BD70528_INT_TSD, 0, BD70528_INT_TSD_MASK), - REGMAP_IRQ_REG(BD70528_INT_RSTIN, 0, BD70528_INT_RSTIN_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK1_FAULT, 1, - BD70528_INT_BUCK1_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK2_FAULT, 1, - BD70528_INT_BUCK2_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK3_FAULT, 1, - BD70528_INT_BUCK3_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_LDO1_FAULT, 1, BD70528_INT_LDO1_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_LDO2_FAULT, 1, BD70528_INT_LDO2_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_LDO3_FAULT, 1, BD70528_INT_LDO3_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_LED1_FAULT, 1, BD70528_INT_LED1_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_LED2_FAULT, 1, BD70528_INT_LED2_FAULT_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK1_OCP, 2, BD70528_INT_BUCK1_OCP_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK2_OCP, 2, BD70528_INT_BUCK2_OCP_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK3_OCP, 2, BD70528_INT_BUCK3_OCP_MASK), - REGMAP_IRQ_REG(BD70528_INT_LED1_OCP, 2, BD70528_INT_LED1_OCP_MASK), - REGMAP_IRQ_REG(BD70528_INT_LED2_OCP, 2, BD70528_INT_LED2_OCP_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK1_FULLON, 2, - BD70528_INT_BUCK1_FULLON_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK2_FULLON, 2, - BD70528_INT_BUCK2_FULLON_MASK), - REGMAP_IRQ_REG(BD70528_INT_SHORTPUSH, 3, BD70528_INT_SHORTPUSH_MASK), - REGMAP_IRQ_REG(BD70528_INT_AUTO_WAKEUP, 3, - BD70528_INT_AUTO_WAKEUP_MASK), - REGMAP_IRQ_REG(BD70528_INT_STATE_CHANGE, 3, - BD70528_INT_STATE_CHANGE_MASK), - REGMAP_IRQ_REG(BD70528_INT_BAT_OV_RES, 4, BD70528_INT_BAT_OV_RES_MASK), - REGMAP_IRQ_REG(BD70528_INT_BAT_OV_DET, 4, BD70528_INT_BAT_OV_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_DBAT_DET, 4, BD70528_INT_DBAT_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_BATTSD_COLD_RES, 4, - BD70528_INT_BATTSD_COLD_RES_MASK), - REGMAP_IRQ_REG(BD70528_INT_BATTSD_COLD_DET, 4, - BD70528_INT_BATTSD_COLD_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_BATTSD_HOT_RES, 4, - BD70528_INT_BATTSD_HOT_RES_MASK), - REGMAP_IRQ_REG(BD70528_INT_BATTSD_HOT_DET, 4, - BD70528_INT_BATTSD_HOT_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_CHG_TSD, 4, BD70528_INT_CHG_TSD_MASK), - REGMAP_IRQ_REG(BD70528_INT_BAT_RMV, 5, BD70528_INT_BAT_RMV_MASK), - REGMAP_IRQ_REG(BD70528_INT_BAT_DET, 5, BD70528_INT_BAT_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_DCIN2_OV_RES, 5, - BD70528_INT_DCIN2_OV_RES_MASK), - REGMAP_IRQ_REG(BD70528_INT_DCIN2_OV_DET, 5, - BD70528_INT_DCIN2_OV_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_DCIN2_RMV, 5, BD70528_INT_DCIN2_RMV_MASK), - REGMAP_IRQ_REG(BD70528_INT_DCIN2_DET, 5, BD70528_INT_DCIN2_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_DCIN1_RMV, 5, BD70528_INT_DCIN1_RMV_MASK), - REGMAP_IRQ_REG(BD70528_INT_DCIN1_DET, 5, BD70528_INT_DCIN1_DET_MASK), - REGMAP_IRQ_REG(BD70528_INT_RTC_ALARM, 6, BD70528_INT_RTC_ALARM_MASK), - REGMAP_IRQ_REG(BD70528_INT_ELPS_TIM, 6, BD70528_INT_ELPS_TIM_MASK), - REGMAP_IRQ_REG(BD70528_INT_GPIO0, 7, BD70528_INT_GPIO0_MASK), - REGMAP_IRQ_REG(BD70528_INT_GPIO1, 7, BD70528_INT_GPIO1_MASK), - REGMAP_IRQ_REG(BD70528_INT_GPIO2, 7, BD70528_INT_GPIO2_MASK), - REGMAP_IRQ_REG(BD70528_INT_GPIO3, 7, BD70528_INT_GPIO3_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK1_DVS_OPFAIL, 8, - BD70528_INT_BUCK1_DVS_OPFAIL_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK2_DVS_OPFAIL, 8, - BD70528_INT_BUCK2_DVS_OPFAIL_MASK), - REGMAP_IRQ_REG(BD70528_INT_BUCK3_DVS_OPFAIL, 8, - BD70528_INT_BUCK3_DVS_OPFAIL_MASK), - REGMAP_IRQ_REG(BD70528_INT_LED1_VOLT_OPFAIL, 8, - BD70528_INT_LED1_VOLT_OPFAIL_MASK), - REGMAP_IRQ_REG(BD70528_INT_LED2_VOLT_OPFAIL, 8, - BD70528_INT_LED2_VOLT_OPFAIL_MASK), -}; - -static struct regmap_irq_chip bd70528_irq_chip = { - .name = "bd70528_irq", - .main_status = BD70528_REG_INT_MAIN, - .irqs = &bd70528_irqs[0], - .num_irqs = ARRAY_SIZE(bd70528_irqs), - .status_base = BD70528_REG_INT_SHDN, - .mask_base = BD70528_REG_INT_SHDN_MASK, - .ack_base = BD70528_REG_INT_SHDN, - .type_base = BD70528_REG_GPIO1_IN, - .init_ack_masked = true, - .num_regs = 9, - .num_main_regs = 1, - .num_type_reg = 4, - .sub_reg_offsets = &bd70528_sub_irq_offsets[0], - .num_main_status_bits = 8, - .irq_reg_stride = 1, -}; - -static int bd70528_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) -{ - struct bd70528_data *bd70528; - struct regmap_irq_chip_data *irq_data; - int ret, i; - - if (!i2c->irq) { - dev_err(&i2c->dev, "No IRQ configured\n"); - return -EINVAL; - } - - bd70528 = devm_kzalloc(&i2c->dev, sizeof(*bd70528), GFP_KERNEL); - if (!bd70528) - return -ENOMEM; - - mutex_init(&bd70528->rtc_timer_lock); - - dev_set_drvdata(&i2c->dev, &bd70528->chip); - - bd70528->chip.regmap = devm_regmap_init_i2c(i2c, &bd70528_regmap); - if (IS_ERR(bd70528->chip.regmap)) { - dev_err(&i2c->dev, "Failed to initialize Regmap\n"); - return PTR_ERR(bd70528->chip.regmap); - } - - /* - * Disallow type setting for all IRQs by default as most of them do not - * support setting type. - */ - for (i = 0; i < ARRAY_SIZE(bd70528_irqs); i++) - bd70528_irqs[i].type.types_supported = 0; - - /* Set IRQ typesetting information for GPIO pins 0 - 3 */ - for (i = 0; i < BD70528_NUM_OF_GPIOS; i++) { - struct regmap_irq_type *type; - - type = &bd70528_irqs[BD70528_INT_GPIO0 + i].type; - type->type_reg_offset = 2 * i; - type->type_rising_val = 0x20; - type->type_falling_val = 0x10; - type->type_level_high_val = 0x40; - type->type_level_low_val = 0x50; - type->types_supported = (IRQ_TYPE_EDGE_BOTH | - IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW); - } - - ret = devm_regmap_add_irq_chip(&i2c->dev, bd70528->chip.regmap, - i2c->irq, IRQF_ONESHOT, 0, - &bd70528_irq_chip, &irq_data); - if (ret) { - dev_err(&i2c->dev, "Failed to add IRQ chip\n"); - return ret; - } - dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n", - bd70528_irq_chip.num_irqs); - - /* - * BD70528 IRQ controller is not touching the main mask register. - * So enable the GPIO block interrupts at main level. We can just leave - * them enabled as the IRQ controller should disable IRQs from - * sub-registers when IRQ is disabled or freed. - */ - ret = regmap_update_bits(bd70528->chip.regmap, - BD70528_REG_INT_MAIN_MASK, - BD70528_INT_GPIO_MASK, 0); - - ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, - bd70528_mfd_cells, - ARRAY_SIZE(bd70528_mfd_cells), NULL, 0, - regmap_irq_get_domain(irq_data)); - if (ret) - dev_err(&i2c->dev, "Failed to create subdevices\n"); - - return ret; -} - -static const struct of_device_id bd70528_of_match[] = { - { .compatible = "rohm,bd70528", }, - { }, -}; -MODULE_DEVICE_TABLE(of, bd70528_of_match); - -static struct i2c_driver bd70528_drv = { - .driver = { - .name = "rohm-bd70528", - .of_match_table = bd70528_of_match, - }, - .probe = &bd70528_i2c_probe, -}; - -module_i2c_driver(bd70528_drv); - -MODULE_AUTHOR("Matti Vaittinen "); -MODULE_DESCRIPTION("ROHM BD70528 Power Management IC driver"); -MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/rohm-bd70528.h b/include/linux/mfd/rohm-bd70528.h deleted file mode 100644 index a57af878fd0c..000000000000 --- a/include/linux/mfd/rohm-bd70528.h +++ /dev/null @@ -1,391 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* Copyright (C) 2018 ROHM Semiconductors */ - -#ifndef __LINUX_MFD_BD70528_H__ -#define __LINUX_MFD_BD70528_H__ - -#include -#include -#include -#include -#include - -enum { - BD70528_BUCK1, - BD70528_BUCK2, - BD70528_BUCK3, - BD70528_LDO1, - BD70528_LDO2, - BD70528_LDO3, - BD70528_LED1, - BD70528_LED2, -}; - -struct bd70528_data { - struct rohm_regmap_dev chip; - struct mutex rtc_timer_lock; -}; - -#define BD70528_BUCK_VOLTS 17 -#define BD70528_BUCK_VOLTS 17 -#define BD70528_BUCK_VOLTS 17 -#define BD70528_LDO_VOLTS 0x20 - -#define BD70528_REG_BUCK1_EN 0x0F -#define BD70528_REG_BUCK1_VOLT 0x15 -#define BD70528_REG_BUCK2_EN 0x10 -#define BD70528_REG_BUCK2_VOLT 0x16 -#define BD70528_REG_BUCK3_EN 0x11 -#define BD70528_REG_BUCK3_VOLT 0x17 -#define BD70528_REG_LDO1_EN 0x1b -#define BD70528_REG_LDO1_VOLT 0x1e -#define BD70528_REG_LDO2_EN 0x1c -#define BD70528_REG_LDO2_VOLT 0x1f -#define BD70528_REG_LDO3_EN 0x1d -#define BD70528_REG_LDO3_VOLT 0x20 -#define BD70528_REG_LED_CTRL 0x2b -#define BD70528_REG_LED_VOLT 0x29 -#define BD70528_REG_LED_EN 0x2a - -/* main irq registers */ -#define BD70528_REG_INT_MAIN 0x7E -#define BD70528_REG_INT_MAIN_MASK 0x74 - -/* 'sub irq' registers */ -#define BD70528_REG_INT_SHDN 0x7F -#define BD70528_REG_INT_PWR_FLT 0x80 -#define BD70528_REG_INT_VR_FLT 0x81 -#define BD70528_REG_INT_MISC 0x82 -#define BD70528_REG_INT_BAT1 0x83 -#define BD70528_REG_INT_BAT2 0x84 -#define BD70528_REG_INT_RTC 0x85 -#define BD70528_REG_INT_GPIO 0x86 -#define BD70528_REG_INT_OP_FAIL 0x87 - -#define BD70528_REG_INT_SHDN_MASK 0x75 -#define BD70528_REG_INT_PWR_FLT_MASK 0x76 -#define BD70528_REG_INT_VR_FLT_MASK 0x77 -#define BD70528_REG_INT_MISC_MASK 0x78 -#define BD70528_REG_INT_BAT1_MASK 0x79 -#define BD70528_REG_INT_BAT2_MASK 0x7a -#define BD70528_REG_INT_RTC_MASK 0x7b -#define BD70528_REG_INT_GPIO_MASK 0x7c -#define BD70528_REG_INT_OP_FAIL_MASK 0x7d - -/* Reset related 'magic' registers */ -#define BD70528_REG_SHIPMODE 0x03 -#define BD70528_REG_HWRESET 0x04 -#define BD70528_REG_WARMRESET 0x05 -#define BD70528_REG_STANDBY 0x06 - -/* GPIO registers */ -#define BD70528_REG_GPIO_STATE 0x8F - -#define BD70528_REG_GPIO1_IN 0x4d -#define BD70528_REG_GPIO2_IN 0x4f -#define BD70528_REG_GPIO3_IN 0x51 -#define BD70528_REG_GPIO4_IN 0x53 -#define BD70528_REG_GPIO1_OUT 0x4e -#define BD70528_REG_GPIO2_OUT 0x50 -#define BD70528_REG_GPIO3_OUT 0x52 -#define BD70528_REG_GPIO4_OUT 0x54 - -/* RTC */ - -#define BD70528_REG_RTC_COUNT_H 0x2d -#define BD70528_REG_RTC_COUNT_L 0x2e -#define BD70528_REG_RTC_SEC 0x2f -#define BD70528_REG_RTC_MINUTE 0x30 -#define BD70528_REG_RTC_HOUR 0x31 -#define BD70528_REG_RTC_WEEK 0x32 -#define BD70528_REG_RTC_DAY 0x33 -#define BD70528_REG_RTC_MONTH 0x34 -#define BD70528_REG_RTC_YEAR 0x35 - -#define BD70528_REG_RTC_ALM_SEC 0x36 -#define BD70528_REG_RTC_ALM_START BD70528_REG_RTC_ALM_SEC -#define BD70528_REG_RTC_ALM_MINUTE 0x37 -#define BD70528_REG_RTC_ALM_HOUR 0x38 -#define BD70528_REG_RTC_ALM_WEEK 0x39 -#define BD70528_REG_RTC_ALM_DAY 0x3a -#define BD70528_REG_RTC_ALM_MONTH 0x3b -#define BD70528_REG_RTC_ALM_YEAR 0x3c -#define BD70528_REG_RTC_ALM_MASK 0x3d -#define BD70528_REG_RTC_ALM_REPEAT 0x3e -#define BD70528_REG_RTC_START BD70528_REG_RTC_SEC - -#define BD70528_REG_RTC_WAKE_SEC 0x43 -#define BD70528_REG_RTC_WAKE_START BD70528_REG_RTC_WAKE_SEC -#define BD70528_REG_RTC_WAKE_MIN 0x44 -#define BD70528_REG_RTC_WAKE_HOUR 0x45 -#define BD70528_REG_RTC_WAKE_CTRL 0x46 - -#define BD70528_REG_ELAPSED_TIMER_EN 0x42 -#define BD70528_REG_WAKE_EN 0x46 - -/* WDT registers */ -#define BD70528_REG_WDT_CTRL 0x4A -#define BD70528_REG_WDT_HOUR 0x49 -#define BD70528_REG_WDT_MINUTE 0x48 -#define BD70528_REG_WDT_SEC 0x47 - -/* Charger / Battery */ -#define BD70528_REG_CHG_CURR_STAT 0x59 -#define BD70528_REG_CHG_BAT_STAT 0x57 -#define BD70528_REG_CHG_BAT_TEMP 0x58 -#define BD70528_REG_CHG_IN_STAT 0x56 -#define BD70528_REG_CHG_DCIN_ILIM 0x5d -#define BD70528_REG_CHG_CHG_CURR_WARM 0x61 -#define BD70528_REG_CHG_CHG_CURR_COLD 0x62 - -/* Masks for main IRQ register bits */ -enum { - BD70528_INT_SHDN, -#define BD70528_INT_SHDN_MASK BIT(BD70528_INT_SHDN) - BD70528_INT_PWR_FLT, -#define BD70528_INT_PWR_FLT_MASK BIT(BD70528_INT_PWR_FLT) - BD70528_INT_VR_FLT, -#define BD70528_INT_VR_FLT_MASK BIT(BD70528_INT_VR_FLT) - BD70528_INT_MISC, -#define BD70528_INT_MISC_MASK BIT(BD70528_INT_MISC) - BD70528_INT_BAT1, -#define BD70528_INT_BAT1_MASK BIT(BD70528_INT_BAT1) - BD70528_INT_RTC, -#define BD70528_INT_RTC_MASK BIT(BD70528_INT_RTC) - BD70528_INT_GPIO, -#define BD70528_INT_GPIO_MASK BIT(BD70528_INT_GPIO) - BD70528_INT_OP_FAIL, -#define BD70528_INT_OP_FAIL_MASK BIT(BD70528_INT_OP_FAIL) -}; - -/* IRQs */ -enum { - /* Shutdown register IRQs */ - BD70528_INT_LONGPUSH, - BD70528_INT_WDT, - BD70528_INT_HWRESET, - BD70528_INT_RSTB_FAULT, - BD70528_INT_VBAT_UVLO, - BD70528_INT_TSD, - BD70528_INT_RSTIN, - /* Power failure register IRQs */ - BD70528_INT_BUCK1_FAULT, - BD70528_INT_BUCK2_FAULT, - BD70528_INT_BUCK3_FAULT, - BD70528_INT_LDO1_FAULT, - BD70528_INT_LDO2_FAULT, - BD70528_INT_LDO3_FAULT, - BD70528_INT_LED1_FAULT, - BD70528_INT_LED2_FAULT, - /* VR FAULT register IRQs */ - BD70528_INT_BUCK1_OCP, - BD70528_INT_BUCK2_OCP, - BD70528_INT_BUCK3_OCP, - BD70528_INT_LED1_OCP, - BD70528_INT_LED2_OCP, - BD70528_INT_BUCK1_FULLON, - BD70528_INT_BUCK2_FULLON, - /* PMU register interrupts */ - BD70528_INT_SHORTPUSH, - BD70528_INT_AUTO_WAKEUP, - BD70528_INT_STATE_CHANGE, - /* Charger 1 register IRQs */ - BD70528_INT_BAT_OV_RES, - BD70528_INT_BAT_OV_DET, - BD70528_INT_DBAT_DET, - BD70528_INT_BATTSD_COLD_RES, - BD70528_INT_BATTSD_COLD_DET, - BD70528_INT_BATTSD_HOT_RES, - BD70528_INT_BATTSD_HOT_DET, - BD70528_INT_CHG_TSD, - /* Charger 2 register IRQs */ - BD70528_INT_BAT_RMV, - BD70528_INT_BAT_DET, - BD70528_INT_DCIN2_OV_RES, - BD70528_INT_DCIN2_OV_DET, - BD70528_INT_DCIN2_RMV, - BD70528_INT_DCIN2_DET, - BD70528_INT_DCIN1_RMV, - BD70528_INT_DCIN1_DET, - /* RTC register IRQs */ - BD70528_INT_RTC_ALARM, - BD70528_INT_ELPS_TIM, - /* GPIO register IRQs */ - BD70528_INT_GPIO0, - BD70528_INT_GPIO1, - BD70528_INT_GPIO2, - BD70528_INT_GPIO3, - /* Invalid operation register IRQs */ - BD70528_INT_BUCK1_DVS_OPFAIL, - BD70528_INT_BUCK2_DVS_OPFAIL, - BD70528_INT_BUCK3_DVS_OPFAIL, - BD70528_INT_LED1_VOLT_OPFAIL, - BD70528_INT_LED2_VOLT_OPFAIL, -}; - -/* Masks */ -#define BD70528_INT_LONGPUSH_MASK 0x1 -#define BD70528_INT_WDT_MASK 0x2 -#define BD70528_INT_HWRESET_MASK 0x4 -#define BD70528_INT_RSTB_FAULT_MASK 0x8 -#define BD70528_INT_VBAT_UVLO_MASK 0x10 -#define BD70528_INT_TSD_MASK 0x20 -#define BD70528_INT_RSTIN_MASK 0x40 - -#define BD70528_INT_BUCK1_FAULT_MASK 0x1 -#define BD70528_INT_BUCK2_FAULT_MASK 0x2 -#define BD70528_INT_BUCK3_FAULT_MASK 0x4 -#define BD70528_INT_LDO1_FAULT_MASK 0x8 -#define BD70528_INT_LDO2_FAULT_MASK 0x10 -#define BD70528_INT_LDO3_FAULT_MASK 0x20 -#define BD70528_INT_LED1_FAULT_MASK 0x40 -#define BD70528_INT_LED2_FAULT_MASK 0x80 - -#define BD70528_INT_BUCK1_OCP_MASK 0x1 -#define BD70528_INT_BUCK2_OCP_MASK 0x2 -#define BD70528_INT_BUCK3_OCP_MASK 0x4 -#define BD70528_INT_LED1_OCP_MASK 0x8 -#define BD70528_INT_LED2_OCP_MASK 0x10 -#define BD70528_INT_BUCK1_FULLON_MASK 0x20 -#define BD70528_INT_BUCK2_FULLON_MASK 0x40 - -#define BD70528_INT_SHORTPUSH_MASK 0x1 -#define BD70528_INT_AUTO_WAKEUP_MASK 0x2 -#define BD70528_INT_STATE_CHANGE_MASK 0x10 - -#define BD70528_INT_BAT_OV_RES_MASK 0x1 -#define BD70528_INT_BAT_OV_DET_MASK 0x2 -#define BD70528_INT_DBAT_DET_MASK 0x4 -#define BD70528_INT_BATTSD_COLD_RES_MASK 0x8 -#define BD70528_INT_BATTSD_COLD_DET_MASK 0x10 -#define BD70528_INT_BATTSD_HOT_RES_MASK 0x20 -#define BD70528_INT_BATTSD_HOT_DET_MASK 0x40 -#define BD70528_INT_CHG_TSD_MASK 0x80 - -#define BD70528_INT_BAT_RMV_MASK 0x1 -#define BD70528_INT_BAT_DET_MASK 0x2 -#define BD70528_INT_DCIN2_OV_RES_MASK 0x4 -#define BD70528_INT_DCIN2_OV_DET_MASK 0x8 -#define BD70528_INT_DCIN2_RMV_MASK 0x10 -#define BD70528_INT_DCIN2_DET_MASK 0x20 -#define BD70528_INT_DCIN1_RMV_MASK 0x40 -#define BD70528_INT_DCIN1_DET_MASK 0x80 - -#define BD70528_INT_RTC_ALARM_MASK 0x1 -#define BD70528_INT_ELPS_TIM_MASK 0x2 - -#define BD70528_INT_GPIO0_MASK 0x1 -#define BD70528_INT_GPIO1_MASK 0x2 -#define BD70528_INT_GPIO2_MASK 0x4 -#define BD70528_INT_GPIO3_MASK 0x8 - -#define BD70528_INT_BUCK1_DVS_OPFAIL_MASK 0x1 -#define BD70528_INT_BUCK2_DVS_OPFAIL_MASK 0x2 -#define BD70528_INT_BUCK3_DVS_OPFAIL_MASK 0x4 -#define BD70528_INT_LED1_VOLT_OPFAIL_MASK 0x10 -#define BD70528_INT_LED2_VOLT_OPFAIL_MASK 0x20 - -#define BD70528_DEBOUNCE_MASK 0x3 - -#define BD70528_DEBOUNCE_DISABLE 0 -#define BD70528_DEBOUNCE_15MS 1 -#define BD70528_DEBOUNCE_30MS 2 -#define BD70528_DEBOUNCE_50MS 3 - -#define BD70528_GPIO_DRIVE_MASK 0x2 -#define BD70528_GPIO_PUSH_PULL 0x0 -#define BD70528_GPIO_OPEN_DRAIN 0x2 - -#define BD70528_GPIO_OUT_EN_MASK 0x80 -#define BD70528_GPIO_OUT_ENABLE 0x80 -#define BD70528_GPIO_OUT_DISABLE 0x0 - -#define BD70528_GPIO_OUT_HI 0x1 -#define BD70528_GPIO_OUT_LO 0x0 -#define BD70528_GPIO_OUT_MASK 0x1 - -#define BD70528_GPIO_IN_STATE_BASE 1 - -/* RTC masks to mask out reserved bits */ - -#define BD70528_MASK_ELAPSED_TIMER_EN 0x1 -/* Mask second, min and hour fields - * HW would support ALM irq for over 24h - * (by setting day, month and year too) - * but as we wish to keep this same as for - * wake-up we limit ALM to 24H and only - * unmask sec, min and hour - */ -#define BD70528_MASK_WAKE_EN 0x1 - -/* WDT masks */ -#define BD70528_MASK_WDT_EN 0x1 -#define BD70528_MASK_WDT_HOUR 0x1 -#define BD70528_MASK_WDT_MINUTE 0x7f -#define BD70528_MASK_WDT_SEC 0x7f - -#define BD70528_WDT_STATE_BIT 0x1 -#define BD70528_ELAPSED_STATE_BIT 0x2 -#define BD70528_WAKE_STATE_BIT 0x4 - -/* Charger masks */ -#define BD70528_MASK_CHG_STAT 0x7f -#define BD70528_MASK_CHG_BAT_TIMER 0x20 -#define BD70528_MASK_CHG_BAT_OVERVOLT 0x10 -#define BD70528_MASK_CHG_BAT_DETECT 0x1 -#define BD70528_MASK_CHG_DCIN1_UVLO 0x1 -#define BD70528_MASK_CHG_DCIN_ILIM 0x3f -#define BD70528_MASK_CHG_CHG_CURR 0x1f -#define BD70528_MASK_CHG_TRICKLE_CURR 0x10 - -/* - * Note, external battery register is the lonely rider at - * address 0xc5. See how to stuff that in the regmap - */ -#define BD70528_MAX_REGISTER 0x94 - -/* Buck control masks */ -#define BD70528_MASK_RUN_EN 0x4 -#define BD70528_MASK_STBY_EN 0x2 -#define BD70528_MASK_IDLE_EN 0x1 -#define BD70528_MASK_LED1_EN 0x1 -#define BD70528_MASK_LED2_EN 0x10 - -#define BD70528_MASK_BUCK_VOLT 0xf -#define BD70528_MASK_LDO_VOLT 0x1f -#define BD70528_MASK_LED1_VOLT 0x1 -#define BD70528_MASK_LED2_VOLT 0x10 - -/* Misc irq masks */ -#define BD70528_INT_MASK_SHORT_PUSH 1 -#define BD70528_INT_MASK_AUTO_WAKE 2 -#define BD70528_INT_MASK_POWER_STATE 4 - -#define BD70528_MASK_BUCK_RAMP 0x10 -#define BD70528_SIFT_BUCK_RAMP 4 - -#if IS_ENABLED(CONFIG_BD70528_WATCHDOG) - -int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable, int *old_state); -void bd70528_wdt_lock(struct rohm_regmap_dev *data); -void bd70528_wdt_unlock(struct rohm_regmap_dev *data); - -#else /* CONFIG_BD70528_WATCHDOG */ - -static inline int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable, - int *old_state) -{ - return 0; -} - -static inline void bd70528_wdt_lock(struct rohm_regmap_dev *data) -{ -} - -static inline void bd70528_wdt_unlock(struct rohm_regmap_dev *data) -{ -} - -#endif /* CONFIG_BD70528_WATCHDOG */ - -#endif /* __LINUX_MFD_BD70528_H__ */ diff --git a/include/linux/mfd/rohm-generic.h b/include/linux/mfd/rohm-generic.h index 35b392a0d73a..8fb763a2265a 100644 --- a/include/linux/mfd/rohm-generic.h +++ b/include/linux/mfd/rohm-generic.h @@ -12,7 +12,6 @@ enum rohm_chip_type { ROHM_CHIP_TYPE_BD9573, ROHM_CHIP_TYPE_BD9574, ROHM_CHIP_TYPE_BD9576, - ROHM_CHIP_TYPE_BD70528, ROHM_CHIP_TYPE_BD71815, ROHM_CHIP_TYPE_BD71828, ROHM_CHIP_TYPE_BD71837, From patchwork Tue May 25 10:16:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 12278313 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 6D7E5C47087 for ; Tue, 25 May 2021 10:16:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E5B16128B for ; Tue, 25 May 2021 10:16:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231330AbhEYKSK (ORCPT ); Tue, 25 May 2021 06:18:10 -0400 Received: from mail-lf1-f53.google.com ([209.85.167.53]:47025 "EHLO mail-lf1-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231273AbhEYKSF (ORCPT ); Tue, 25 May 2021 06:18:05 -0400 Received: by mail-lf1-f53.google.com with SMTP id i9so45238464lfe.13; Tue, 25 May 2021 03:16:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=MqguKyOEJYDZbYyHiE06qZV0TINsWMdlMUTeTZPqjSY=; b=UCvrhVtblB8MQNZz9yOwj9Lh7tEUUmx2Wic7+AzU0epR011kHqD3+JOAV0eycDvJaK 89Z/FXOvPF8ndlC8VZdOx6QvMpBDkYCaGQFT1WroipDTvya8qn+TDcjFF3G+MapEBpPH ySyG7sXAgKwQOdI38vMDul892/S7MEPcBBWln4BUtgarGwmI9pEOsQ0VkPKW0A4+lFFG 4XB7v9yAVck085Ak19UfS0rHk8ZvAOPnd5x+F9J79uj37cvrhDActl6GfAIUBA+C6YfP CbM8hWNmAN/1nhHPb4UbGbdmThZYiodmK9KwQ7HSHaBCGl7EliHrD1E7G4V3TNYsYMUb qC/w== X-Gm-Message-State: AOAM533IoQF07cR1YBMb2JEAI5usoiuLZdJr7x3pH7esD6lAM3kVPzQI bhlvvSxQSe/b6w/Cd1E02eY= X-Google-Smtp-Source: ABdhPJzxq81YUZFLq9qqb8OJczvZO5SPfE0i6y1MPDyPPwllJ4leaaBZCvfaz1+z8Lgq+6tQhFNnIw== X-Received: by 2002:a05:6512:74d:: with SMTP id c13mr190716lfs.75.1621937792809; Tue, 25 May 2021 03:16:32 -0700 (PDT) Received: from localhost.localdomain (dc7vkhyyyyyyyyyyyyycy-3.rev.dnainternet.fi. [2001:14ba:16e2:8300::4]) by smtp.gmail.com with ESMTPSA id s8sm2046006ljg.89.2021.05.25.03.16.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 03:16:32 -0700 (PDT) Date: Tue, 25 May 2021 13:16:24 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Michael Turquette , Stephen Boyd , Matti Vaittinen , Linus Walleij , Bartosz Golaszewski , Sebastian Reichel , Alessandro Zummo , Alexandre Belloni , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-gpio@vger.kernel.org, linux-pm@vger.kernel.org, linux-rtc@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 9/9] MAINTAINERS: bd70528: Drop ROHM BD70528 drivers Message-ID: <2c8d1e58d926fdf5117d19a39c66d25deabeeda7.1621937490.git.matti.vaittinen@fi.rohmeurope.com> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Ease the maintenance burden and drop the driver. Signed-off-by: Matti Vaittinen --- MAINTAINERS | 8 -------- 1 file changed, 8 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 81e1edeceae4..28d5783214b7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15777,27 +15777,19 @@ ROHM POWER MANAGEMENT IC DEVICE DRIVERS R: Matti Vaittinen L: linux-power@fi.rohmeurope.com S: Supported -F: Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt -F: Documentation/devicetree/bindings/regulator/rohm,bd70528-regulator.txt F: drivers/clk/clk-bd718x7.c -F: drivers/gpio/gpio-bd70528.c F: drivers/gpio/gpio-bd71815.c F: drivers/gpio/gpio-bd71828.c -F: drivers/mfd/rohm-bd70528.c F: drivers/mfd/rohm-bd71828.c F: drivers/mfd/rohm-bd718x7.c F: drivers/mfd/rohm-bd9576.c -F: drivers/power/supply/bd70528-charger.c -F: drivers/regulator/bd70528-regulator.c F: drivers/regulator/bd71815-regulator.c F: drivers/regulator/bd71828-regulator.c F: drivers/regulator/bd718x7-regulator.c F: drivers/regulator/bd9576-regulator.c F: drivers/regulator/rohm-regulator.c F: drivers/rtc/rtc-bd70528.c -F: drivers/watchdog/bd70528_wdt.c F: drivers/watchdog/bd9576_wdt.c -F: include/linux/mfd/rohm-bd70528.h F: include/linux/mfd/rohm-bd71815.h F: include/linux/mfd/rohm-bd71828.h F: include/linux/mfd/rohm-bd718x7.h