[PATCH v4 09/39] gpio: qcom_pmic: 1-based GPIOs

[Sumit Garg]

On Fri, 16 Feb 2024 at 02:22, Caleb Connolly <caleb.connolly at linaro.org> wrote:
>
> Qualcomm PMICs number their GPIOs starting from 1, implement a custom
> .xlate method to handle this.
>
> Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>
> Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
> ---
>  drivers/gpio/qcom_pmic_gpio.c | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>

Reviewed-by: Sumit Garg <sumit.garg at linaro.org>

-Sumit

> diff --git a/drivers/gpio/qcom_pmic_gpio.c b/drivers/gpio/qcom_pmic_gpio.c
> index 6167c8411678..2a4fef8d28cb 100644
> --- a/drivers/gpio/qcom_pmic_gpio.c
> +++ b/drivers/gpio/qcom_pmic_gpio.c
> @@ -209,12 +209,34 @@ static int qcom_gpio_set_value(struct udevice *dev, unsigned offset,
>                                        REG_CTL_OUTPUT_MASK, !!value);
>  }
>
> +static int qcom_gpio_xlate(struct udevice *dev, struct gpio_desc *desc,
> +                          struct ofnode_phandle_args *args)
> +{
> +       struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);
> +
> +       if (args->args_count < 1)
> +               return -EINVAL;
> +
> +       /* GPIOs in DT are 1-based */
> +       desc->offset = args->args[0] - 1;
> +       if (desc->offset >= uc_priv->gpio_count)
> +               return -EINVAL;
> +
> +       if (args->args_count < 2)
> +               return 0;
> +
> +       desc->flags = gpio_flags_xlate(args->args[1]);
> +
> +       return 0;
> +}
> +
>  static const struct dm_gpio_ops qcom_gpio_ops = {
>         .direction_input        = qcom_gpio_direction_input,
>         .direction_output       = qcom_gpio_direction_output,
>         .get_value              = qcom_gpio_get_value,
>         .set_value              = qcom_gpio_set_value,
>         .get_function           = qcom_gpio_get_function,
> +       .xlate                  = qcom_gpio_xlate,
>  };
>
>  static int qcom_gpio_probe(struct udevice *dev)
>
> --
> 2.43.1
>