diff mbox series

[28/62] gpio: gpio-omap: Use new GPIO_LINE_DIRECTION

Message ID b27b35f4db5f05994e64e3bb78f0c632bef61e6f.1572945849.git.matti.vaittinen@fi.rohmeurope.com (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Vaittinen, Matti Nov. 5, 2019, 10:25 a.m. UTC 
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-omap.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Grygorii Strashko Nov. 5, 2019, 11:27 a.m. UTC | #1 
On 05/11/2019 12:25, Matti Vaittinen 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>
> ---
>   drivers/gpio/gpio-omap.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
> index d0f27084a942..3bd8adaeed9e 100644
> --- a/drivers/gpio/gpio-omap.c
> +++ b/drivers/gpio/gpio-omap.c
> @@ -805,8 +805,10 @@ static int omap_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
>   {
>   	struct gpio_bank *bank = gpiochip_get_data(chip);
>   
> -	return !!(readl_relaxed(bank->base + bank->regs->direction) &
> -		  BIT(offset));
> +	if (readl_relaxed(bank->base + bank->regs->direction) & BIT(offset))
> +		return GPIO_LINE_DIRECTION_IN;
> +
> +	return GPIO_LINE_DIRECTION_OUT;
>   }
>   
>   static int omap_gpio_input(struct gpio_chip *chip, unsigned offset)
> 

Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index d0f27084a942..3bd8adaeed9e 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -805,8 +805,10 @@  static int omap_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
 {
 	struct gpio_bank *bank = gpiochip_get_data(chip);
 
-	return !!(readl_relaxed(bank->base + bank->regs->direction) &
-		  BIT(offset));
+	if (readl_relaxed(bank->base + bank->regs->direction) & BIT(offset))
+		return GPIO_LINE_DIRECTION_IN;
+
+	return GPIO_LINE_DIRECTION_OUT;
 }
 
 static int omap_gpio_input(struct gpio_chip *chip, unsigned offset)