Re: [PATCH v2 1/2] gpio: sprd: Fix the incorrect data register

[Bartosz Golaszewski]

År., 16 sty 2019 o 06:06 Baolin Wang <baolin.wang@xxxxxxxxxx> napisaÅ(a):
>
> From: Neo Hou <neo.hou@xxxxxxxxxx>
>
> Since differnt type EICs have its own data register to read, thus fix the
> incorrect data register.
>
> Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support")
> Cc: <stable@xxxxxxxxxxxxxxx>
> Signed-off-by: Neo Hou <neo.hou@xxxxxxxxxx>
> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxx>
> ---
> Changes from v1:
>  - Add fix tag and CC stable.
> ---
>  drivers/gpio/gpio-eic-sprd.c |   13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpio/gpio-eic-sprd.c b/drivers/gpio/gpio-eic-sprd.c
> index e0d6a0a..257df59 100644
> --- a/drivers/gpio/gpio-eic-sprd.c
> +++ b/drivers/gpio/gpio-eic-sprd.c
> @@ -180,7 +180,18 @@ static void sprd_eic_free(struct gpio_chip *chip, unsigned int offset)
>
>  static int sprd_eic_get(struct gpio_chip *chip, unsigned int offset)
>  {
> -       return sprd_eic_read(chip, offset, SPRD_EIC_DBNC_DATA);
> +       struct sprd_eic *sprd_eic = gpiochip_get_data(chip);
> +
> +       switch (sprd_eic->type) {
> +       case SPRD_EIC_DEBOUNCE:
> +               return sprd_eic_read(chip, offset, SPRD_EIC_DBNC_DATA);
> +       case SPRD_EIC_ASYNC:
> +               return sprd_eic_read(chip, offset, SPRD_EIC_ASYNC_DATA);
> +       case SPRD_EIC_SYNC:
> +               return sprd_eic_read(chip, offset, SPRD_EIC_SYNC_DATA);
> +       default:
> +               return -ENOTSUPP;
> +       }
>  }
>
>  static int sprd_eic_direction_input(struct gpio_chip *chip, unsigned int offset)
> --
> 1.7.9.5
>

Both applied for fixes, thanks!

Bartosz