diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2015-12-07 08:10:13 (GMT) |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-01-05 10:21:06 (GMT) |
| commit | a2f33804657dbd347c4ae23c4e75dbfe950d89d4 (patch) | |
| tree | a2494b56fcb9d802fa08eaf043462f05450383dd | |
| parent | 1f89bccd7fe4f27b05b6404f24a35dcc5426817d (diff) | |
| download | linux-a2f33804657dbd347c4ae23c4e75dbfe950d89d4.tar.xz | |
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 <milo.kim@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | drivers/gpio/gpio-lp3943.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/drivers/gpio/gpio-lp3943.c b/drivers/gpio/gpio-lp3943.c index f979c3b..1c8e2ae 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) |