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gpio: ath79: use gpiochip data pointer

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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().

Acked-by: Alban Bedel <albeu@free.fr>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-04 15:36:14 +01:00
parent 18992d4ee5
commit b4e97a6125
1 changed files with 7 additions and 9 deletions
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16
drivers/gpio/gpio-ath79.c
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@ -24,12 +24,10 @@ struct ath79_gpio_ctrl {
spinlock_t lock;
};
#define to_ath79_gpio_ctrl(c) container_of(c, struct ath79_gpio_ctrl, chip)
static void ath79_gpio_set_value(struct gpio_chip *chip,
unsigned gpio, int value)
{
struct ath79_gpio_ctrl *ctrl = to_ath79_gpio_ctrl(chip);
struct ath79_gpio_ctrl *ctrl = gpiochip_get_data(chip);
if (value)
__raw_writel(BIT(gpio), ctrl->base + AR71XX_GPIO_REG_SET);
@ -39,7 +37,7 @@ static void ath79_gpio_set_value(struct gpio_chip *chip,
static int ath79_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
{
struct ath79_gpio_ctrl *ctrl = to_ath79_gpio_ctrl(chip);
struct ath79_gpio_ctrl *ctrl = gpiochip_get_data(chip);
return (__raw_readl(ctrl->base + AR71XX_GPIO_REG_IN) >> gpio) & 1;
}
@ -47,7 +45,7 @@ static int ath79_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
static int ath79_gpio_direction_input(struct gpio_chip *chip,
unsigned offset)
{
struct ath79_gpio_ctrl *ctrl = to_ath79_gpio_ctrl(chip);
struct ath79_gpio_ctrl *ctrl = gpiochip_get_data(chip);
unsigned long flags;
spin_lock_irqsave(&ctrl->lock, flags);
@ -64,7 +62,7 @@ static int ath79_gpio_direction_input(struct gpio_chip *chip,
static int ath79_gpio_direction_output(struct gpio_chip *chip,
unsigned offset, int value)
{
struct ath79_gpio_ctrl *ctrl = to_ath79_gpio_ctrl(chip);
struct ath79_gpio_ctrl *ctrl = gpiochip_get_data(chip);
unsigned long flags;
spin_lock_irqsave(&ctrl->lock, flags);
@ -85,7 +83,7 @@ static int ath79_gpio_direction_output(struct gpio_chip *chip,
static int ar934x_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
{
struct ath79_gpio_ctrl *ctrl = to_ath79_gpio_ctrl(chip);
struct ath79_gpio_ctrl *ctrl = gpiochip_get_data(chip);
unsigned long flags;
spin_lock_irqsave(&ctrl->lock, flags);
@ -102,7 +100,7 @@ static int ar934x_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
static int ar934x_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
int value)
{
struct ath79_gpio_ctrl *ctrl = to_ath79_gpio_ctrl(chip);
struct ath79_gpio_ctrl *ctrl = gpiochip_get_data(chip);
unsigned long flags;
spin_lock_irqsave(&ctrl->lock, flags);
@ -184,7 +182,7 @@ static int ath79_gpio_probe(struct platform_device *pdev)
ctrl->chip.direction_output = ar934x_gpio_direction_output;
}
err = gpiochip_add(&ctrl->chip);
err = gpiochip_add_data(&ctrl->chip, ctrl);
if (err) {
dev_err(&pdev->dev,
"cannot add AR71xx GPIO chip, error=%d", err);