From 541d052d721506549774ab780a2709e4ff8ca79b Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 29 Jan 2019 11:31:56 +0100 Subject: [PATCH] regulator: core: Only support passing enable GPIO descriptors Now that we changed all providers to pass descriptors into the core for enable GPIOs instead of a global GPIO number, delete the support for passing GPIO numbers in, and we get a cleanup and size reduction in the core, and from a GPIO point of view we use the modern, cleaner interface. Tested-by: Marek Szyprowski Signed-off-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/core.c | 32 ++++++-------------------------- include/linux/regulator/driver.h | 12 +----------- 2 files changed, 7 insertions(+), 37 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 1778c5d1b2d0..4fb475a2e4f2 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -23,7 +23,6 @@ #include #include #include -#include #include #include #include @@ -2236,35 +2235,19 @@ static int regulator_ena_gpio_request(struct regulator_dev *rdev, { struct regulator_enable_gpio *pin; struct gpio_desc *gpiod; - int ret; - if (config->ena_gpiod) - gpiod = config->ena_gpiod; - else - gpiod = gpio_to_desc(config->ena_gpio); + gpiod = config->ena_gpiod; list_for_each_entry(pin, ®ulator_ena_gpio_list, list) { if (pin->gpiod == gpiod) { - rdev_dbg(rdev, "GPIO %d is already used\n", - config->ena_gpio); + rdev_dbg(rdev, "GPIO is already used\n"); goto update_ena_gpio_to_rdev; } } - if (!config->ena_gpiod) { - ret = gpio_request_one(config->ena_gpio, - GPIOF_DIR_OUT | config->ena_gpio_flags, - rdev_get_name(rdev)); - if (ret) - return ret; - } - pin = kzalloc(sizeof(struct regulator_enable_gpio), GFP_KERNEL); - if (pin == NULL) { - if (!config->ena_gpiod) - gpio_free(config->ena_gpio); + if (pin == NULL) return -ENOMEM; - } pin->gpiod = gpiod; list_add(&pin->list, ®ulator_ena_gpio_list); @@ -2287,7 +2270,6 @@ static void regulator_ena_gpio_free(struct regulator_dev *rdev) if (pin->gpiod == rdev->ena_pin->gpiod) { if (pin->request_count <= 1) { pin->request_count = 0; - gpiod_put(pin->gpiod); list_del(&pin->list); kfree(pin); rdev->ena_pin = NULL; @@ -4971,15 +4953,13 @@ regulator_register(const struct regulator_desc *regulator_desc, goto clean; } - if (config->ena_gpiod || - ((config->ena_gpio || config->ena_gpio_initialized) && - gpio_is_valid(config->ena_gpio))) { + if (config->ena_gpiod) { mutex_lock(®ulator_list_mutex); ret = regulator_ena_gpio_request(rdev, config); mutex_unlock(®ulator_list_mutex); if (ret != 0) { - rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", - config->ena_gpio, ret); + rdev_err(rdev, "Failed to request enable GPIO: %d\n", + ret); goto clean; } /* The regulator core took over the GPIO descriptor */ diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 795b38a06b6c..7f8345bff4e1 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -401,13 +401,7 @@ struct regulator_desc { * NULL). * @regmap: regmap to use for core regmap helpers if dev_get_regmap() is * insufficient. - * @ena_gpio_initialized: GPIO controlling regulator enable was properly - * initialized, meaning that >= 0 is a valid gpio - * identifier and < 0 is a non existent gpio. - * @ena_gpio: GPIO controlling regulator enable. - * @ena_gpiod: GPIO descriptor controlling regulator enable. - * @ena_gpio_invert: Sense for GPIO enable control. - * @ena_gpio_flags: Flags to use when calling gpio_request_one() + * @ena_gpiod: GPIO controlling regulator enable. */ struct regulator_config { struct device *dev; @@ -416,11 +410,7 @@ struct regulator_config { struct device_node *of_node; struct regmap *regmap; - bool ena_gpio_initialized; - int ena_gpio; struct gpio_desc *ena_gpiod; - unsigned int ena_gpio_invert:1; - unsigned int ena_gpio_flags; }; /* -- 2.11.0