pinctrl: zynqmp: Add support for output-enable and bias-high-impedance
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
diff --git a/drivers/pinctrl/pinctrl-zynqmp.c b/drivers/pinctrl/pinctrl-zynqmp.c
index 7c5a02d..52d428f 100644
--- a/drivers/pinctrl/pinctrl-zynqmp.c
+++ b/drivers/pinctrl/pinctrl-zynqmp.c
@@ -467,6 +467,10 @@
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 @@
*/
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);