| Message ID | 7217327d1ea69f886a2cdb8abf201a2cc7bb02d3.1572945872.git.matti.vaittinen@fi.rohmeurope.com |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On Tue, Nov 5, 2019 at 11:29 AM Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> wrote: > It's hard for occasional GPIO code reader/writer to know if values 0/1 > equal to IN or OUT. Use defined GPIO_LINE_DIRECTION_IN and > GPIO_LINE_DIRECTION_OUT to help them out. > > Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Gr{oetje,eeting}s, Geert
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 722ce5cf861e..5df7782e348f 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -63,7 +63,10 @@ static int pl061_get_direction(struct gpio_chip *gc, unsigned offset) { struct pl061 *pl061 = gpiochip_get_data(gc); - return !(readb(pl061->base + GPIODIR) & BIT(offset)); + if (readb(pl061->base + GPIODIR) & BIT(offset)) + return GPIO_LINE_DIRECTION_OUT; + + return GPIO_LINE_DIRECTION_IN; } static int pl061_direction_input(struct gpio_chip *gc, unsigned offset)
It's hard for occasional GPIO code reader/writer to know if values 0/1 equal to IN or OUT. Use defined GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_OUT to help them out. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> --- drivers/gpio/gpio-pl061.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)