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gpio: ucb1400: 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().

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2015-12-07 15:01:14 +01:00
parent 7020e7c513
commit 9af4f0ab8a
1 changed files with 6 additions and 5 deletions
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11
drivers/gpio/gpio-ucb1400.c
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@ -15,7 +15,7 @@
static int ucb1400_gpio_dir_in(struct gpio_chip *gc, unsigned off)
{
struct ucb1400_gpio *gpio;
gpio = container_of(gc, struct ucb1400_gpio, gc);
gpio = gpiochip_get_data(gc);
ucb1400_gpio_set_direction(gpio->ac97, off, 0);
return 0;
}
@ -23,7 +23,7 @@ static int ucb1400_gpio_dir_in(struct gpio_chip *gc, unsigned off)
static int ucb1400_gpio_dir_out(struct gpio_chip *gc, unsigned off, int val)
{
struct ucb1400_gpio *gpio;
gpio = container_of(gc, struct ucb1400_gpio, gc);
gpio = gpiochip_get_data(gc);
ucb1400_gpio_set_direction(gpio->ac97, off, 1);
ucb1400_gpio_set_value(gpio->ac97, off, val);
return 0;
@ -32,14 +32,15 @@ static int ucb1400_gpio_dir_out(struct gpio_chip *gc, unsigned off, int val)
static int ucb1400_gpio_get(struct gpio_chip *gc, unsigned off)
{
struct ucb1400_gpio *gpio;
gpio = container_of(gc, struct ucb1400_gpio, gc);
gpio = gpiochip_get_data(gc);
return !!ucb1400_gpio_get_value(gpio->ac97, off);
}
static void ucb1400_gpio_set(struct gpio_chip *gc, unsigned off, int val)
{
struct ucb1400_gpio *gpio;
gpio = container_of(gc, struct ucb1400_gpio, gc);
gpio = gpiochip_get_data(gc);
ucb1400_gpio_set_value(gpio->ac97, off, val);
}
@ -66,7 +67,7 @@ static int ucb1400_gpio_probe(struct platform_device *dev)
ucb->gc.set = ucb1400_gpio_set;
ucb->gc.can_sleep = true;
err = gpiochip_add(&ucb->gc);
err = gpiochip_add_data(&ucb->gc, ucb);
if (err)
goto err;