gpio: pca953x: 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: 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>
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index be3e3b9..23196c5 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -107,11 +107,6 @@
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_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 @@
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 @@
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 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 @@
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_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_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_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_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 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 @@
if (ret)
return ret;
- ret = gpiochip_add(&chip->gpio_chip);
+ ret = gpiochip_add_data(&chip->gpio_chip, chip);
if (ret)
return ret;
