From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Subject: [PATCH 13/21] regulator: s2mps11: Pass descriptor instead of GPIO number Date: Mon, 12 Feb 2018 14:17:09 +0100 Message-ID: <20180212131717.27193-14-linus.walleij@linaro.org> References: <20180212131717.27193-1-linus.walleij@linaro.org> Return-path: In-Reply-To: <20180212131717.27193-1-linus.walleij@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Liam Girdwood , Mark Brown Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Linus Walleij , Krzysztof Kozlowski , Sangbeom Kim , Chanwoo Choi List-Id: linux-gpio@vger.kernel.org Instead of passing a global GPIO number for the enable GPIO, pass a descriptor looked up with the standard devm_gpiod_get_optional() call. This regulator supports passing platform data, but enable/sleep regulators are looked up from the device tree exclusively, so we can need not touch other files. Cc: Krzysztof Kozlowski Cc: Sangbeom Kim Cc: Chanwoo Choi Signed-off-by: Linus Walleij --- drivers/regulator/s2mps11.c | 46 ++++++++++++++++++++++----------------------- 1 file changed, 23 insertions(+), 23 deletions(-) diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 7726b874e539..9a1dca26362e 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -18,7 +18,7 @@ #include #include -#include +#include #include #include #include @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include @@ -57,7 +56,7 @@ struct s2mps11_info { * Array (size: number of regulators) with GPIO-s for external * sleep control. */ - int *ext_control_gpio; + struct gpio_desc **ext_control_gpiod; }; static int get_ramp_delay(int ramp_delay) @@ -524,7 +523,7 @@ static int s2mps14_regulator_enable(struct regulator_dev *rdev) case S2MPS14X: if (test_bit(rdev_get_id(rdev), s2mps11->suspend_state)) val = S2MPS14_ENABLE_SUSPEND; - else if (gpio_is_valid(s2mps11->ext_control_gpio[rdev_get_id(rdev)])) + else if (s2mps11->ext_control_gpiod[rdev_get_id(rdev)]) val = S2MPS14_ENABLE_EXT_CONTROL; else val = rdev->desc->enable_mask; @@ -818,7 +817,7 @@ static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11, static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) { - int *gpio = s2mps11->ext_control_gpio; + struct gpio_desc **gpio = s2mps11->ext_control_gpiod; unsigned int i; unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11, S2MPS14_LDO12 }; @@ -829,11 +828,20 @@ static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, if (!rdata[reg].init_data || !rdata[reg].of_node) continue; - gpio[reg] = of_get_named_gpio(rdata[reg].of_node, - "samsung,ext-control-gpios", 0); - if (gpio_is_valid(gpio[reg])) - dev_dbg(&pdev->dev, "Using GPIO %d for ext-control over %d/%s\n", - gpio[reg], reg, rdata[reg].name); + gpio[reg] = devm_gpiod_get_from_of_node(&pdev->dev, + rdata[reg].of_node, + "samsung,ext-control-gpios", + 0, + GPIOD_OUT_HIGH, + "s2mps11-LDO"); + if (IS_ERR(gpio[reg])) { + dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s\n", + reg, rdata[reg].name); + continue; + } + if (gpio[reg]) + dev_dbg(&pdev->dev, "Using GPIO for ext-control over %d/%s\n", + reg, rdata[reg].name); } } @@ -1139,17 +1147,11 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) return -EINVAL; } - s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev, - sizeof(*s2mps11->ext_control_gpio) * rdev_num, + s2mps11->ext_control_gpiod = devm_kmalloc(&pdev->dev, + sizeof(*s2mps11->ext_control_gpiod) * rdev_num, GFP_KERNEL); - if (!s2mps11->ext_control_gpio) + if (!s2mps11->ext_control_gpiod) return -ENOMEM; - /* - * 0 is a valid GPIO so initialize all GPIO-s to negative value - * to indicate that external control won't be used for this regulator. - */ - for (i = 0; i < rdev_num; i++) - s2mps11->ext_control_gpio[i] = -EINVAL; if (!iodev->dev->of_node) { if (iodev->pdata) { @@ -1179,8 +1181,6 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) config.dev = &pdev->dev; config.regmap = iodev->regmap_pmic; config.driver_data = s2mps11; - config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; - config.ena_gpio_initialized = true; for (i = 0; i < rdev_num; i++) { struct regulator_dev *regulator; @@ -1191,7 +1191,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) config.init_data = rdata[i].init_data; config.of_node = rdata[i].of_node; } - config.ena_gpio = s2mps11->ext_control_gpio[i]; + config.ena_gpiod = s2mps11->ext_control_gpiod[i]; regulator = devm_regulator_register(&pdev->dev, ®ulators[i], &config); @@ -1202,7 +1202,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) goto out; } - if (gpio_is_valid(s2mps11->ext_control_gpio[i])) { + if (s2mps11->ext_control_gpiod[i]) { ret = s2mps14_pmic_enable_ext_control(s2mps11, regulator); if (ret < 0) { -- 2.14.3