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gpiolib: Actually set output state in wm831x_gpio_direction_output()
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wm831x_gpio_direction_output() ignored the state passed into it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Mark Brown authored and Samuel Ortiz committed Mar 7, 2010
1 parent 7ee422d commit 3383d23
Showing 1 changed file with 15 additions and 7 deletions.
22 changes: 15 additions & 7 deletions drivers/gpio/wm831x-gpio.c
Original file line number Diff line number Diff line change
Expand Up @@ -60,23 +60,31 @@ static int wm831x_gpio_get(struct gpio_chip *chip, unsigned offset)
return 0;
}

static int wm831x_gpio_direction_out(struct gpio_chip *chip,
unsigned offset, int value)
static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
struct wm831x *wm831x = wm831x_gpio->wm831x;

return wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset,
WM831X_GPN_DIR | WM831X_GPN_TRI, 0);
wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset,
value << offset);
}

static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
static int wm831x_gpio_direction_out(struct gpio_chip *chip,
unsigned offset, int value)
{
struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip);
struct wm831x *wm831x = wm831x_gpio->wm831x;
int ret;

wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset,
value << offset);
ret = wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset,
WM831X_GPN_DIR | WM831X_GPN_TRI, 0);
if (ret < 0)
return ret;

/* Can only set GPIO state once it's in output mode */
wm831x_gpio_set(chip, offset, value);

return 0;
}

static int wm831x_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
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