From 4af320b10c1e6bfe6272980c303fe119f6c27197 Mon Sep 17 00:00:00 2001 From: Ashok Reddy Soma Date: Thu, 10 Aug 2023 23:48:28 -0600 Subject: [PATCH] pinctrl: zynqmp: Add version check for TRISTATE configuration 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 Link: https://lore.kernel.org/r/20230811054829.13162-3-ashok.reddy.soma@amd.com Signed-off-by: Michal Simek --- drivers/pinctrl/pinctrl-zynqmp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pinctrl/pinctrl-zynqmp.c b/drivers/pinctrl/pinctrl-zynqmp.c index 02626a7561e..e9857f5ed9d 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) {