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[3/4] pinctrl: pinctrl-zynqmp: Add support for output-enable and bias-high-impedance

Message ID 1655462819-28801-4-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com
State Accepted
Commit ad2bea79ef0144043721d4893eef719c907e2e63
Headers show
Series pinctrl: pinctrl-zynqmp: Add tri-state configuration support | expand

Commit Message

Sai Krishna Potthuri June 17, 2022, 10:46 a.m. UTC 
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>
---
 drivers/pinctrl/pinctrl-zynqmp.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/pinctrl/pinctrl-zynqmp.c b/drivers/pinctrl/pinctrl-zynqmp.c
index e14012209992..b25e9e76fbf8 100644
--- a/drivers/pinctrl/pinctrl-zynqmp.c
+++ b/drivers/pinctrl/pinctrl-zynqmp.c
@@ -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",