diff mbox series

[2/3] pinctrl: zynqmp: Add version check for TRISTATE configuration

Message ID 20230811054829.13162-3-ashok.reddy.soma@amd.com
State Accepted
Commit 4af320b10c1e6bfe6272980c303fe119f6c27197
Delegated to: Michal Simek
Headers show
Series pinctrl: zynqmp: Add tri-state configuration support | expand

Commit Message

Ashok Reddy Soma Aug. 11, 2023, 5:48 a.m. UTC 
Support for configuring TRISTATE parameter is added in ZYNQMP PMUFW(Xilinx
ZynqMP Platform Management Firmware) Configuration Param Set version 2.0.
If the requested configuration is TRISTATE then check the version before
requesting Xilinx firmware to set the configuration.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@amd.com>
---

 drivers/pinctrl/pinctrl-zynqmp.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/pinctrl/pinctrl-zynqmp.c b/drivers/pinctrl/pinctrl-zynqmp.c
index 02626a7561..e9857f5ed9 100644
--- a/drivers/pinctrl/pinctrl-zynqmp.c
+++ b/drivers/pinctrl/pinctrl-zynqmp.c
@@ -158,6 +158,12 @@  static int zynqmp_pm_pinctrl_set_config(const u32 pin, const u32 param, u32 valu
 {
 	int ret;
 
+	if (param == PM_PINCTRL_CONFIG_TRI_STATE) {
+		ret = zynqmp_pm_feature(PM_PINCTRL_CONFIG_PARAM_SET);
+		if (ret < PM_PINCTRL_PARAM_SET_VERSION)
+			return -EOPNOTSUPP;
+	}
+
 	/* Request the pin first */
 	ret = xilinx_pm_request(PM_PINCTRL_REQUEST, pin, 0, 0, 0, NULL);
 	if (ret) {