rockchip: rk3036: Add pinctrl driver

Add a driver which support pin multiplexing setup for rk3036

Signed-off-by: Lin Huang <hl@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 3b6e3b7..57e6142 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -114,6 +114,15 @@
 	  definitions and pin control functions for each available multiplex
 	  function.
 
+config ROCKCHIP_3036_PINCTRL
+	bool "Rockchip rk3036 pin control driver"
+	depends on DM
+	help
+	  Support pin multiplexing control on Rockchip rk3036 SoCs. 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