From a2f33804657dbd347c4ae23c4e75dbfe950d89d4 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 7 Dec 2015 09:10:13 +0100 Subject: gpio: lp3943: use gpiochip data pointer This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Milo Kim Signed-off-by: Linus Walleij --- drivers/gpio/gpio-lp3943.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) (limited to 'drivers/gpio/gpio-lp3943.c') diff --git a/drivers/gpio/gpio-lp3943.c b/drivers/gpio/gpio-lp3943.c index f979c3be217f..1c8e2ae26938 100644 --- a/drivers/gpio/gpio-lp3943.c +++ b/drivers/gpio/gpio-lp3943.c @@ -45,14 +45,9 @@ struct lp3943_gpio { u16 input_mask; /* 1 = GPIO is input direction, 0 = output */ }; -static inline struct lp3943_gpio *to_lp3943_gpio(struct gpio_chip *_chip) -{ - return container_of(_chip, struct lp3943_gpio, chip); -} - static int lp3943_gpio_request(struct gpio_chip *chip, unsigned offset) { - struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943_gpio *lp3943_gpio = gpiochip_get_data(chip); struct lp3943 *lp3943 = lp3943_gpio->lp3943; /* Return an error if the pin is already assigned */ @@ -64,7 +59,7 @@ static int lp3943_gpio_request(struct gpio_chip *chip, unsigned offset) static void lp3943_gpio_free(struct gpio_chip *chip, unsigned offset) { - struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943_gpio *lp3943_gpio = gpiochip_get_data(chip); struct lp3943 *lp3943 = lp3943_gpio->lp3943; clear_bit(offset, &lp3943->pin_used); @@ -82,7 +77,7 @@ static int lp3943_gpio_set_mode(struct lp3943_gpio *lp3943_gpio, u8 offset, static int lp3943_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { - struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943_gpio *lp3943_gpio = gpiochip_get_data(chip); lp3943_gpio->input_mask |= BIT(offset); @@ -138,7 +133,7 @@ static int lp3943_get_gpio_out_status(struct lp3943_gpio *lp3943_gpio, static int lp3943_gpio_get(struct gpio_chip *chip, unsigned offset) { - struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943_gpio *lp3943_gpio = gpiochip_get_data(chip); /* * Limitation: @@ -157,7 +152,7 @@ static int lp3943_gpio_get(struct gpio_chip *chip, unsigned offset) static void lp3943_gpio_set(struct gpio_chip *chip, unsigned offset, int value) { - struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943_gpio *lp3943_gpio = gpiochip_get_data(chip); u8 data; if (value) @@ -171,7 +166,7 @@ static void lp3943_gpio_set(struct gpio_chip *chip, unsigned offset, int value) static int lp3943_gpio_direction_output(struct gpio_chip *chip, unsigned offset, int value) { - struct lp3943_gpio *lp3943_gpio = to_lp3943_gpio(chip); + struct lp3943_gpio *lp3943_gpio = gpiochip_get_data(chip); lp3943_gpio_set(chip, offset, value); lp3943_gpio->input_mask &= ~BIT(offset); @@ -209,7 +204,7 @@ static int lp3943_gpio_probe(struct platform_device *pdev) platform_set_drvdata(pdev, lp3943_gpio); - return gpiochip_add(&lp3943_gpio->chip); + return gpiochip_add_data(&lp3943_gpio->chip, lp3943_gpio); } static int lp3943_gpio_remove(struct platform_device *pdev) -- cgit v1.2.3