rockchip: pinctrl: Add rv1108 pinctrl driver

Add pinctrl support for Rockchip rv1108 soc

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 79249e0..150c68d 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -217,6 +217,16 @@
 	  the GPIO definitions and pin control functions for each available
 	  multiplex function.
 
+config PINCTRL_ROCKCHIP_RV1108
+	bool "Rockchip rv1108 pin control driver"
+	depends on DM
+	help
+	  Support pin multiplexing control on Rockchip rv1108 SoC.
+
+	  The driver is controlled by a device tree node which contains
+	  both the GPIO definitions and pin control functions for each
+	  available multiplex function.
+
 config PINCTRL_SANDBOX
 	bool "Sandbox pinctrl driver"
 	depends on SANDBOX