pinctrl: nxp: add a pin controller driver based on SCMI pin control protocol

This patch provides a pinctrl driver based on SCMI pin control protocol.
Currently, only the PINCTRL_CONFIG_SET command is implemented.

Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
diff --git a/drivers/pinctrl/nxp/Kconfig b/drivers/pinctrl/nxp/Kconfig
index d13c5f2..84d9a36 100644
--- a/drivers/pinctrl/nxp/Kconfig
+++ b/drivers/pinctrl/nxp/Kconfig
@@ -139,6 +139,19 @@
 	  only parses the 'fsl,pins' property and configure related
 	  registers.
 
+config PINCTRL_IMX_SCMI
+	bool "IMX pinctrl SCMI driver"
+	depends on ARCH_IMX9 && PINCTRL_FULL
+	select PINCTRL_IMX
+	help
+	  This provides a simple pinctrl driver for i.MX SoC which supports
+	  SCMI. This feature depends on device tree configuration. This driver
+	  is different from the linux one, this is a simple implementation,
+	  only parses the 'fsl,pins' property and configure related
+	  registers.
+
+	  Say Y here to enable the imx pinctrl SCMI driver
+
 config PINCTRL_VYBRID
 	bool "Vybrid (vf610) pinctrl driver"
 	depends on ARCH_VF610 && PINCTRL_FULL