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

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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@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/1a02cd41d183d397ebce23c497178281c7286692.1655286745.git.michal.simek@amd.com
This commit is contained in:
Ashok Reddy Soma 2022-06-15 11:52:28 +02:00 committed by Michal Simek
parent b611f7faf9
commit 123462e5e5
1 changed files with 9 additions and 0 deletions
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9
drivers/pinctrl/pinctrl-zynqmp.c
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@ -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);