On 08/15/2018 08:05 PM, Ley Foon Tan wrote:
> Enabled get_function support for dwapb where the function will
> return the state of GPIO port.
>
> Signed-off-by: Chin Liang See <[email protected]>
> Signed-off-by: Ley Foon Tan <[email protected]>
> ---
> drivers/gpio/dwapb_gpio.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/gpio/dwapb_gpio.c b/drivers/gpio/dwapb_gpio.c
> index 680b11a..3b5c181 100644
> --- a/drivers/gpio/dwapb_gpio.c
> +++ b/drivers/gpio/dwapb_gpio.c
> @@ -78,11 +78,26 @@ static int dwapb_gpio_set_value(struct udevice *dev,
> unsigned pin, int val)
> return 0;
> }
>
> +static int dwapb_gpio_get_function(struct udevice *dev, unsigned offset)
> +{
> + struct gpio_dwapb_platdata *plat = dev_get_platdata(dev);
> + int gpio;
> +
> + gpio = readl(plat->base + GPIO_SWPORT_DDR(plat->bank));
> + gpio = (gpio >> offset) & 1;
> +
> + if (gpio)
if (gpio & BIT(offset)) ?
> + return GPIOF_OUTPUT;
> + else
> + return GPIOF_INPUT;
> +}
> +
> static const struct dm_gpio_ops gpio_dwapb_ops = {
> .direction_input = dwapb_gpio_direction_input,
> .direction_output = dwapb_gpio_direction_output,
> .get_value = dwapb_gpio_get_value,
> .set_value = dwapb_gpio_set_value,
> + .get_function = dwapb_gpio_get_function,
> };
>
> static int gpio_dwapb_probe(struct udevice *dev)
>
--
Best regards,
Marek Vasut
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