redonkable/remarkable-linux
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gpio: pca953x: 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: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Markus Pargmann <mpa@pengutronix.de>
Cc: Toby Smith <toby@tismith.id.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2015-12-07 11:20:54 +01:00
parent 5b68cc2d59
commit 468e67f6eb
1 changed files with 11 additions and 16 deletions
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27
drivers/gpio/gpio-pca953x.c
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@ -107,11 +107,6 @@ struct pca953x_chip {
unsigned long driver_data;
};
static inline struct pca953x_chip *to_pca(struct gpio_chip *gc)
{
return container_of(gc, struct pca953x_chip, gpio_chip);
}
static int pca953x_read_single(struct pca953x_chip *chip, int reg, u32 *val,
int off)
{
@ -214,7 +209,7 @@ static int pca953x_read_regs(struct pca953x_chip *chip, int reg, u8 *val)
static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off)
{
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
u8 reg_val;
int ret, offset = 0;
@ -243,7 +238,7 @@ exit:
static int pca953x_gpio_direction_output(struct gpio_chip *gc,
unsigned off, int val)
{
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
u8 reg_val;
int ret, offset = 0;
@ -293,7 +288,7 @@ exit:
static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off)
{
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
u32 reg_val;
int ret, offset = 0;
@ -321,7 +316,7 @@ static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off)
static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val)
{
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
u8 reg_val;
int ret, offset = 0;
@ -354,7 +349,7 @@ exit:
static void pca953x_gpio_set_multiple(struct gpio_chip *gc,
unsigned long *mask, unsigned long *bits)
{
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
u8 reg_val[MAX_BANK];
int ret, offset = 0;
int bank_shift = fls((chip->gpio_chip.ngpio - 1) / BANK_SZ);
@ -412,7 +407,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)
static void pca953x_irq_mask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
chip->irq_mask[d->hwirq / BANK_SZ] &= ~(1 << (d->hwirq % BANK_SZ));
}
@ -420,7 +415,7 @@ static void pca953x_irq_mask(struct irq_data *d)
static void pca953x_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
chip->irq_mask[d->hwirq / BANK_SZ] |= 1 << (d->hwirq % BANK_SZ);
}
@ -428,7 +423,7 @@ static void pca953x_irq_unmask(struct irq_data *d)
static void pca953x_irq_bus_lock(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
mutex_lock(&chip->irq_lock);
}
@ -436,7 +431,7 @@ static void pca953x_irq_bus_lock(struct irq_data *d)
static void pca953x_irq_bus_sync_unlock(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
u8 new_irqs;
int level, i;
@ -459,7 +454,7 @@ static void pca953x_irq_bus_sync_unlock(struct irq_data *d)
static int pca953x_irq_set_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct pca953x_chip *chip = to_pca(gc);
struct pca953x_chip *chip = gpiochip_get_data(gc);
int bank_nb = d->hwirq / BANK_SZ;
u8 mask = 1 << (d->hwirq % BANK_SZ);
@ -759,7 +754,7 @@ static int pca953x_probe(struct i2c_client *client,
if (ret)
return ret;
ret = gpiochip_add(&chip->gpio_chip);
ret = gpiochip_add_data(&chip->gpio_chip, chip);
if (ret)
return ret;