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

Add support to handle 'output-enable' and 'bias-high-impedance'
configurations. As part of the output-enable configuration, ZynqMP pinctrl
driver takes care of removing the pins from tri-state.

Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Link: https://lore.kernel.org/r/1655462819-28801-4-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Sai Krishna Potthuri 2022-06-17 16:16:58 +05:30 committed by Linus Walleij
parent 133ad0d9af
commit ad2bea79ef
1 changed files with 9 additions and 0 deletions
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9
drivers/pinctrl/pinctrl-zynqmp.c
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@ -410,6 +410,10 @@ static int zynqmp_pinconf_cfg_set(struct pinctrl_dev *pctldev,
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_MODE_LOW_POWER:
/*
* These cases are mentioned in dts but configurable
@ -418,6 +422,11 @@ static int zynqmp_pinconf_cfg_set(struct pinctrl_dev *pctldev,
*/
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(pctldev->dev,
"unsupported configuration parameter '%u'\n",