gpio: octeon: 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().
Reviewed-by: David Daney <david.daney@cavium.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-octeon.c b/drivers/gpio/gpio-octeon.c
index afbb241..7665ebc 100644
--- a/drivers/gpio/gpio-octeon.c
+++ b/drivers/gpio/gpio-octeon.c
@@ -41,7 +41,7 @@
static int octeon_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
{
- struct octeon_gpio *gpio = container_of(chip, struct octeon_gpio, chip);
+ struct octeon_gpio *gpio = gpiochip_get_data(chip);
cvmx_write_csr(gpio->register_base + bit_cfg_reg(offset), 0);
return 0;
@@ -49,7 +49,7 @@
static void octeon_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
- struct octeon_gpio *gpio = container_of(chip, struct octeon_gpio, chip);
+ struct octeon_gpio *gpio = gpiochip_get_data(chip);
u64 mask = 1ull << offset;
u64 reg = gpio->register_base + (value ? TX_SET : TX_CLEAR);
cvmx_write_csr(reg, mask);
@@ -58,7 +58,7 @@
static int octeon_gpio_dir_out(struct gpio_chip *chip, unsigned offset,
int value)
{
- struct octeon_gpio *gpio = container_of(chip, struct octeon_gpio, chip);
+ struct octeon_gpio *gpio = gpiochip_get_data(chip);
union cvmx_gpio_bit_cfgx cfgx;
octeon_gpio_set(chip, offset, value);
@@ -72,7 +72,7 @@
static int octeon_gpio_get(struct gpio_chip *chip, unsigned offset)
{
- struct octeon_gpio *gpio = container_of(chip, struct octeon_gpio, chip);
+ struct octeon_gpio *gpio = gpiochip_get_data(chip);
u64 read_bits = cvmx_read_csr(gpio->register_base + RX_DAT);
return ((1ull << offset) & read_bits) != 0;
@@ -117,7 +117,7 @@
chip->get = octeon_gpio_get;
chip->direction_output = octeon_gpio_dir_out;
chip->set = octeon_gpio_set;
- err = gpiochip_add(chip);
+ err = gpiochip_add_data(chip, gpio);
if (err)
goto out;