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gpio: tz1090-pdc: 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().

Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 14:57:25 +01:00
parent 231a8680b7
commit 059e3972d0
1 changed files with 6 additions and 7 deletions
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13
drivers/gpio/gpio-tz1090-pdc.c
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@ -49,7 +49,6 @@ struct tz1090_pdc_gpio {
void __iomem *reg;
int irq[GPIO_PDC_NIRQ];
};
#define to_pdc(c) container_of(c, struct tz1090_pdc_gpio, chip)
/* Register accesses into the PDC MMIO area */
@ -70,7 +69,7 @@ static inline unsigned int pdc_read(struct tz1090_pdc_gpio *priv,
static int tz1090_pdc_gpio_direction_input(struct gpio_chip *chip,
unsigned int offset)
{
struct tz1090_pdc_gpio *priv = to_pdc(chip);
struct tz1090_pdc_gpio *priv = gpiochip_get_data(chip);
u32 value;
int lstat;
@ -87,7 +86,7 @@ static int tz1090_pdc_gpio_direction_output(struct gpio_chip *chip,
unsigned int offset,
int output_value)
{
struct tz1090_pdc_gpio *priv = to_pdc(chip);
struct tz1090_pdc_gpio *priv = gpiochip_get_data(chip);
u32 value;
int lstat;
@ -112,14 +111,14 @@ static int tz1090_pdc_gpio_direction_output(struct gpio_chip *chip,
static int tz1090_pdc_gpio_get(struct gpio_chip *chip, unsigned int offset)
{
struct tz1090_pdc_gpio *priv = to_pdc(chip);
struct tz1090_pdc_gpio *priv = gpiochip_get_data(chip);
return !!(pdc_read(priv, REG_SOC_GPIO_STATUS) & BIT(offset));
}
static void tz1090_pdc_gpio_set(struct gpio_chip *chip, unsigned int offset,
int output_value)
{
struct tz1090_pdc_gpio *priv = to_pdc(chip);
struct tz1090_pdc_gpio *priv = gpiochip_get_data(chip);
u32 value;
int lstat;
@ -139,7 +138,7 @@ static void tz1090_pdc_gpio_set(struct gpio_chip *chip, unsigned int offset,
static int tz1090_pdc_gpio_to_irq(struct gpio_chip *chip, unsigned int offset)
{
struct tz1090_pdc_gpio *priv = to_pdc(chip);
struct tz1090_pdc_gpio *priv = gpiochip_get_data(chip);
unsigned int syswake = offset - GPIO_PDC_IRQ_FIRST;
int irq;
@ -207,7 +206,7 @@ static int tz1090_pdc_gpio_probe(struct platform_device *pdev)
priv->irq[i] = irq_of_parse_and_map(np, i);
/* Add the GPIO bank */
gpiochip_add(&priv->chip);
gpiochip_add_data(&priv->chip, priv);
return 0;
}