Merge tag 'samsung-dt-pinctrl-4.9' of git://git.kernel.org/pub/scm/li…

…nux/kernel/git/krzk/linux into next/dt

Pull "Topic branch for Samsung DeviceTree cleanup for 4.9" from Krzysztof Kozłowski:

Replace in DT sources hard-coded values for pinctrl configuration like pull
up/down, drive strength and function. This makes the DTS easier to read,
especially that some drive strengths values are quite non-obvious.

* tag 'samsung-dt-pinctrl-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: dts: s3c64xx: Use macros for pinctrl configuration
  ARM: dts: s3c2416: Use macros for pinctrl configuration
  ARM: dts: s5pv210: Use macros for pinctrl configuration
  ARM: dts: s3c64xx: Use common macros for pinctrl configuration
  ARM: dts: exynos: Fix mismatched values of SD drive strengh configuration on exynos4415
  ARM: dts: exynos: Fix mismatched value for SD4 pull up/down configuration on exynos4210
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos542x/exynos5800
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos5410
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos5260
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos5250
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos4415
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos4x12
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos4210
  ARM: dts: exynos: Use macros for pinctrl configuration on exynos3250
  ARM: dts: exynos: Use common macros for pinctrl configuration
  pinctrl: dt-bindings: samsung: Update documentation with new macros
  pinctrl: dt-bindings: samsung: Add header with values used for configuration

Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt

@@ -229,6 +229,8 @@ Example: A pin-controller node with pin banks:
 
 Example 1: A pin-controller node with pin groups.
 
+	#include <dt-bindings/pinctrl/samsung.h>
+
 	pinctrl_0: pinctrl@11400000 {
 		compatible = "samsung,exynos4210-pinctrl";
 		reg = <0x11400000 0x1000>;
@@ -238,53 +240,53 @@ Example 1: A pin-controller node with pin groups.
 
 		uart0_data: uart0-data {
 			samsung,pins = "gpa0-0", "gpa0-1";
-			samsung,pin-function = <2>;
-			samsung,pin-pud = <0>;
-			samsung,pin-drv = <0>;
+			samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+			samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+			samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 		};
 
 		uart0_fctl: uart0-fctl {
 			samsung,pins = "gpa0-2", "gpa0-3";
-			samsung,pin-function = <2>;
-			samsung,pin-pud = <0>;
-			samsung,pin-drv = <0>;
+			samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+			samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+			samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 		};
 
 		uart1_data: uart1-data {
 			samsung,pins = "gpa0-4", "gpa0-5";
-			samsung,pin-function = <2>;
-			samsung,pin-pud = <0>;
-			samsung,pin-drv = <0>;
+			samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+			samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+			samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 		};
 
 		uart1_fctl: uart1-fctl {
 			samsung,pins = "gpa0-6", "gpa0-7";
-			samsung,pin-function = <2>;
-			samsung,pin-pud = <0>;
-			samsung,pin-drv = <0>;
+			samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+			samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+			samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 		};
 
 		i2c2_bus: i2c2-bus {
 			samsung,pins = "gpa0-6", "gpa0-7";
-			samsung,pin-function = <3>;
-			samsung,pin-pud = <3>;
-			samsung,pin-drv = <0>;
+			samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
+			samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
+			samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 		};
 
 		sd4_bus8: sd4-bus-width8 {
 			part-1 {
 				samsung,pins = "gpk0-3", "gpk0-4",
 						"gpk0-5", "gpk0-6";
-				samsung,pin-function = <3>;
-				samsung,pin-pud = <3>;
-				samsung,pin-drv = <3>;
+				samsung,pin-function = <EXYNOS_PIN_FUNC_3>;
+				samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
+				samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 			};
 			part-2 {
 				samsung,pins = "gpk1-3", "gpk1-4",
 						"gpk1-5", "gpk1-6";
-				samsung,pin-function = <4>;
-				samsung,pin-pud = <4>;
-				samsung,pin-drv = <3>;
+				samsung,pin-function = <EXYNOS_PIN_FUNC_4>;
+				samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
+				samsung,pin-drv = <EXYNOS4_PIN_DRV_LV4>;
 			};
 		};
 	};

MAINTAINERS

@@ -9252,6 +9252,8 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
 S:	Maintained
 F:	drivers/pinctrl/samsung/
+F:	include/dt-bindings/pinctrl/samsung.h
+F:	Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt
 
 PIN CONTROLLER - SINGLE
 M:	Tony Lindgren <tony@atomide.com>