[PATCH] pinctrl: zynqmp: Add support for output-enable and bias-high-impedance

[Michal Simek]

st 15. 6. 2022 v 11:52 odesílatel Michal Simek <monstr at monstr.eu> napsal:
>
> From: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>
>
> Add support to handle 'output-enable' and 'bias-high-impedance'
> configurations. DT property output-enable brings out the pins from
> tri-state, whereas bias-high-impedance changes the pins state to
> tri-state.
>
> Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>
> Signed-off-by: Michal Simek <michal.simek at amd.com>
> ---
>
>  drivers/pinctrl/pinctrl-zynqmp.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/drivers/pinctrl/pinctrl-zynqmp.c b/drivers/pinctrl/pinctrl-zynqmp.c
> index 7c5a02db1b98..52d428f566fc 100644
> --- a/drivers/pinctrl/pinctrl-zynqmp.c
> +++ b/drivers/pinctrl/pinctrl-zynqmp.c
> @@ -467,6 +467,10 @@ static int zynqmp_pinconf_set(struct udevice *dev, unsigned int pin,
>                                  pin);
>                 break;
>         case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
> +               param = PM_PINCTRL_CONFIG_TRI_STATE;
> +               arg = PM_PINCTRL_TRI_STATE_ENABLE;
> +               ret = zynqmp_pm_pinctrl_set_config(pin, param, arg);
> +               break;
>         case PIN_CONFIG_LOW_POWER_MODE:
>                 /*
>                  * This cases are mentioned in dts but configurable
> @@ -475,6 +479,11 @@ static int zynqmp_pinconf_set(struct udevice *dev, unsigned int pin,
>                  */
>                 ret = 0;
>                 break;
> +       case PIN_CONFIG_OUTPUT_ENABLE:
> +               param = PM_PINCTRL_CONFIG_TRI_STATE;
> +               arg = PM_PINCTRL_TRI_STATE_DISABLE;
> +               ret = zynqmp_pm_pinctrl_set_config(pin, param, arg);
> +               break;
>         default:
>                 dev_warn(dev, "unsupported configuration parameter '%u'\n",
>                          param);
> --
> 2.36.1
>

Applied.
M

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs