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gpio: xgene: 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: Feng Kan <fkan@apm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 15:16:50 +01:00
parent 765aa58778
commit ac9dc85eea
1 changed files with 6 additions and 11 deletions
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17
drivers/gpio/gpio-xgene.c
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@ -47,14 +47,9 @@ struct xgene_gpio {
#endif #endif
}; };
static inline struct xgene_gpio *to_xgene_gpio(struct gpio_chip *chip)
{
return container_of(chip, struct xgene_gpio, chip);
}
static int xgene_gpio_get(struct gpio_chip *gc, unsigned int offset) static int xgene_gpio_get(struct gpio_chip *gc, unsigned int offset)
{ {
struct xgene_gpio *chip = to_xgene_gpio(gc); struct xgene_gpio *chip = gpiochip_get_data(gc);
unsigned long bank_offset; unsigned long bank_offset;
u32 bit_offset; u32 bit_offset;
@ -65,7 +60,7 @@ static int xgene_gpio_get(struct gpio_chip *gc, unsigned int offset)
static void __xgene_gpio_set(struct gpio_chip *gc, unsigned int offset, int val) static void __xgene_gpio_set(struct gpio_chip *gc, unsigned int offset, int val)
{ {
struct xgene_gpio *chip = to_xgene_gpio(gc); struct xgene_gpio *chip = gpiochip_get_data(gc);
unsigned long bank_offset; unsigned long bank_offset;
u32 setval, bit_offset; u32 setval, bit_offset;
@ -82,7 +77,7 @@ static void __xgene_gpio_set(struct gpio_chip *gc, unsigned int offset, int val)
static void xgene_gpio_set(struct gpio_chip *gc, unsigned int offset, int val) static void xgene_gpio_set(struct gpio_chip *gc, unsigned int offset, int val)
{ {
struct xgene_gpio *chip = to_xgene_gpio(gc); struct xgene_gpio *chip = gpiochip_get_data(gc);
unsigned long flags; unsigned long flags;
spin_lock_irqsave(&chip->lock, flags); spin_lock_irqsave(&chip->lock, flags);
@ -92,7 +87,7 @@ static void xgene_gpio_set(struct gpio_chip *gc, unsigned int offset, int val)
static int xgene_gpio_dir_in(struct gpio_chip *gc, unsigned int offset) static int xgene_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
{ {
struct xgene_gpio *chip = to_xgene_gpio(gc); struct xgene_gpio *chip = gpiochip_get_data(gc);
unsigned long flags, bank_offset; unsigned long flags, bank_offset;
u32 dirval, bit_offset; u32 dirval, bit_offset;
@ -113,7 +108,7 @@ static int xgene_gpio_dir_in(struct gpio_chip *gc, unsigned int offset)
static int xgene_gpio_dir_out(struct gpio_chip *gc, static int xgene_gpio_dir_out(struct gpio_chip *gc,
unsigned int offset, int val) unsigned int offset, int val)
{ {
struct xgene_gpio *chip = to_xgene_gpio(gc); struct xgene_gpio *chip = gpiochip_get_data(gc);
unsigned long flags, bank_offset; unsigned long flags, bank_offset;
u32 dirval, bit_offset; u32 dirval, bit_offset;
@ -198,7 +193,7 @@ static int xgene_gpio_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, gpio); platform_set_drvdata(pdev, gpio);
err = gpiochip_add(&gpio->chip); err = gpiochip_add_data(&gpio->chip, gpio);
if (err) { if (err) {
dev_err(&pdev->dev, dev_err(&pdev->dev,
"failed to register gpiochip.\n"); "failed to register gpiochip.\n");