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gpio: bcm-kona: 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: Markus Mayer <markus.mayer@linaro.org>
Cc: Tim Kryger <tim.kryger@linaro.org>
Cc: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-04 15:39:50 +01:00
parent b4e97a6125
commit ba4a74485a
1 changed files with 10 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/gpio/gpio-bcm-kona.c
View File

@ -78,11 +78,6 @@ struct bcm_kona_gpio_bank {
struct bcm_kona_gpio *kona_gpio;
};
static inline struct bcm_kona_gpio *to_kona_gpio(struct gpio_chip *chip)
{
return container_of(chip, struct bcm_kona_gpio, gpio_chip);
}
static inline void bcm_kona_gpio_write_lock_regs(void __iomem *reg_base,
int bank_id, u32 lockcode)
{
@ -124,7 +119,7 @@ static void bcm_kona_gpio_unlock_gpio(struct bcm_kona_gpio *kona_gpio,
static int bcm_kona_gpio_get_dir(struct gpio_chip *chip, unsigned gpio)
{
struct bcm_kona_gpio *kona_gpio = to_kona_gpio(chip);
struct bcm_kona_gpio *kona_gpio = gpiochip_get_data(chip);
void __iomem *reg_base = kona_gpio->reg_base;
u32 val;
@ -141,7 +136,7 @@ static void bcm_kona_gpio_set(struct gpio_chip *chip, unsigned gpio, int value)
u32 val, reg_offset;
unsigned long flags;
kona_gpio = to_kona_gpio(chip);
kona_gpio = gpiochip_get_data(chip);
reg_base = kona_gpio->reg_base;
spin_lock_irqsave(&kona_gpio->lock, flags);
@ -168,7 +163,7 @@ static int bcm_kona_gpio_get(struct gpio_chip *chip, unsigned gpio)
u32 val, reg_offset;
unsigned long flags;
kona_gpio = to_kona_gpio(chip);
kona_gpio = gpiochip_get_data(chip);
reg_base = kona_gpio->reg_base;
spin_lock_irqsave(&kona_gpio->lock, flags);
@ -188,7 +183,7 @@ static int bcm_kona_gpio_get(struct gpio_chip *chip, unsigned gpio)
static int bcm_kona_gpio_request(struct gpio_chip *chip, unsigned gpio)
{
struct bcm_kona_gpio *kona_gpio = to_kona_gpio(chip);
struct bcm_kona_gpio *kona_gpio = gpiochip_get_data(chip);
bcm_kona_gpio_unlock_gpio(kona_gpio, gpio);
return 0;
@ -196,7 +191,7 @@ static int bcm_kona_gpio_request(struct gpio_chip *chip, unsigned gpio)
static void bcm_kona_gpio_free(struct gpio_chip *chip, unsigned gpio)
{
struct bcm_kona_gpio *kona_gpio = to_kona_gpio(chip);
struct bcm_kona_gpio *kona_gpio = gpiochip_get_data(chip);
bcm_kona_gpio_lock_gpio(kona_gpio, gpio);
}
@ -208,7 +203,7 @@ static int bcm_kona_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
u32 val;
unsigned long flags;
kona_gpio = to_kona_gpio(chip);
kona_gpio = gpiochip_get_data(chip);
reg_base = kona_gpio->reg_base;
spin_lock_irqsave(&kona_gpio->lock, flags);
@ -232,7 +227,7 @@ static int bcm_kona_gpio_direction_output(struct gpio_chip *chip,
u32 val, reg_offset;
unsigned long flags;
kona_gpio = to_kona_gpio(chip);
kona_gpio = gpiochip_get_data(chip);
reg_base = kona_gpio->reg_base;
spin_lock_irqsave(&kona_gpio->lock, flags);
@ -255,7 +250,7 @@ static int bcm_kona_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
{
struct bcm_kona_gpio *kona_gpio;
kona_gpio = to_kona_gpio(chip);
kona_gpio = gpiochip_get_data(chip);
if (gpio >= kona_gpio->gpio_chip.ngpio)
return -ENXIO;
return irq_create_mapping(kona_gpio->irq_domain, gpio);
@ -269,7 +264,7 @@ static int bcm_kona_gpio_set_debounce(struct gpio_chip *chip, unsigned gpio,
u32 val, res;
unsigned long flags;
kona_gpio = to_kona_gpio(chip);
kona_gpio = gpiochip_get_data(chip);
reg_base = kona_gpio->reg_base;
/* debounce must be 1-128ms (or 0) */
if ((debounce > 0 && debounce < 1000) || debounce > 128000) {
@ -635,7 +630,7 @@ static int bcm_kona_gpio_probe(struct platform_device *pdev)
bcm_kona_gpio_reset(kona_gpio);
ret = gpiochip_add(chip);
ret = gpiochip_add_data(chip, kona_gpio);
if (ret < 0) {
dev_err(dev, "Couldn't add GPIO chip -- %d\n", ret);
goto err_irq_domain;