diff options
author | Linus Walleij <linus.walleij@linaro.org> | 2015-12-07 14:32:13 +0100 |
---|---|---|
committer | Linus Walleij <linus.walleij@linaro.org> | 2016-01-05 11:21:14 +0100 |
commit | b03c04a0aab1715ca8c501d41f9175a9047ef79f (patch) | |
tree | fc497508d1b399aa439a56ab72a262c223904aee /drivers | |
parent | gpio: sta2x11: use gpiochip data pointer (diff) | |
download | linux-b03c04a0aab1715ca8c501d41f9175a9047ef79f.tar.xz linux-b03c04a0aab1715ca8c501d41f9175a9047ef79f.zip |
gpio: stmpe: 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: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpio/gpio-stmpe.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c index 9e471979aa9e..5197edf1acfd 100644 --- a/drivers/gpio/gpio-stmpe.c +++ b/drivers/gpio/gpio-stmpe.c @@ -36,14 +36,9 @@ struct stmpe_gpio { u8 oldregs[CACHE_NR_REGS][CACHE_NR_BANKS]; }; -static inline struct stmpe_gpio *to_stmpe_gpio(struct gpio_chip *chip) -{ - return container_of(chip, struct stmpe_gpio, chip); -} - static int stmpe_gpio_get(struct gpio_chip *chip, unsigned offset) { - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(chip); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(chip); struct stmpe *stmpe = stmpe_gpio->stmpe; u8 reg = stmpe->regs[STMPE_IDX_GPMR_LSB] - (offset / 8); u8 mask = 1 << (offset % 8); @@ -58,7 +53,7 @@ static int stmpe_gpio_get(struct gpio_chip *chip, unsigned offset) static void stmpe_gpio_set(struct gpio_chip *chip, unsigned offset, int val) { - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(chip); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(chip); struct stmpe *stmpe = stmpe_gpio->stmpe; int which = val ? STMPE_IDX_GPSR_LSB : STMPE_IDX_GPCR_LSB; u8 reg = stmpe->regs[which] - (offset / 8); @@ -77,7 +72,7 @@ static void stmpe_gpio_set(struct gpio_chip *chip, unsigned offset, int val) static int stmpe_gpio_direction_output(struct gpio_chip *chip, unsigned offset, int val) { - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(chip); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(chip); struct stmpe *stmpe = stmpe_gpio->stmpe; u8 reg = stmpe->regs[STMPE_IDX_GPDR_LSB] - (offset / 8); u8 mask = 1 << (offset % 8); @@ -90,7 +85,7 @@ static int stmpe_gpio_direction_output(struct gpio_chip *chip, static int stmpe_gpio_direction_input(struct gpio_chip *chip, unsigned offset) { - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(chip); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(chip); struct stmpe *stmpe = stmpe_gpio->stmpe; u8 reg = stmpe->regs[STMPE_IDX_GPDR_LSB] - (offset / 8); u8 mask = 1 << (offset % 8); @@ -100,7 +95,7 @@ static int stmpe_gpio_direction_input(struct gpio_chip *chip, static int stmpe_gpio_request(struct gpio_chip *chip, unsigned offset) { - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(chip); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(chip); struct stmpe *stmpe = stmpe_gpio->stmpe; if (stmpe_gpio->norequest_mask & (1 << offset)) @@ -123,7 +118,7 @@ static struct gpio_chip template_chip = { static int stmpe_gpio_irq_set_type(struct irq_data *d, unsigned int type) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(gc); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(gc); int offset = d->hwirq; int regoffset = offset / 8; int mask = 1 << (offset % 8); @@ -151,7 +146,7 @@ static int stmpe_gpio_irq_set_type(struct irq_data *d, unsigned int type) static void stmpe_gpio_irq_lock(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(gc); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(gc); mutex_lock(&stmpe_gpio->irq_lock); } @@ -159,7 +154,7 @@ static void stmpe_gpio_irq_lock(struct irq_data *d) static void stmpe_gpio_irq_sync_unlock(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(gc); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(gc); struct stmpe *stmpe = stmpe_gpio->stmpe; int num_banks = DIV_ROUND_UP(stmpe->num_gpios, 8); static const u8 regmap[] = { @@ -193,7 +188,7 @@ static void stmpe_gpio_irq_sync_unlock(struct irq_data *d) static void stmpe_gpio_irq_mask(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(gc); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(gc); int offset = d->hwirq; int regoffset = offset / 8; int mask = 1 << (offset % 8); @@ -204,7 +199,7 @@ static void stmpe_gpio_irq_mask(struct irq_data *d) static void stmpe_gpio_irq_unmask(struct irq_data *d) { struct gpio_chip *gc = irq_data_get_irq_chip_data(d); - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(gc); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(gc); int offset = d->hwirq; int regoffset = offset / 8; int mask = 1 << (offset % 8); @@ -216,7 +211,7 @@ static void stmpe_dbg_show_one(struct seq_file *s, struct gpio_chip *gc, unsigned offset, unsigned gpio) { - struct stmpe_gpio *stmpe_gpio = to_stmpe_gpio(gc); + struct stmpe_gpio *stmpe_gpio = gpiochip_get_data(gc); struct stmpe *stmpe = stmpe_gpio->stmpe; const char *label = gpiochip_is_requested(gc, offset); int num_banks = DIV_ROUND_UP(stmpe->num_gpios, 8); @@ -375,7 +370,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev) if (ret) goto out_free; - ret = gpiochip_add(&stmpe_gpio->chip); + ret = gpiochip_add_data(&stmpe_gpio->chip, stmpe_gpio); if (ret) { dev_err(&pdev->dev, "unable to add gpiochip: %d\n", ret); goto out_disable; |