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pinctrl: zynqmp: Add version check for TRISTATE configuration

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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>
Link: https://lore.kernel.org/r/20230811054829.13162-3-ashok.reddy.soma@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Ashok Reddy Soma 2023-08-10 23:48:28 -06:00 committed by Michal Simek
parent f16347f41c
commit 4af320b10c
1 changed files with 6 additions and 0 deletions
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6
drivers/pinctrl/pinctrl-zynqmp.c
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@ -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) {