ARM: dts: kirkwood: set default pinctrl for SPI0

Most Kirkwood boards use the default SPI0 pinctrl setting anyway. Add a
default pinctrl setting to the toplevel SoC SPI0 node and put a note
in front of the corresponding pinctrl node to overwrite the setting
on board level.

Currently, only T5325 is using a different setting and already
overwrites the corresponding pinctrl node.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: NAndrew Lunn <andrew@lunn.ch>
Link: https://lkml.kernel.org/r/1398862602-29595-11-git-send-email-sebastian.hesselbarth@gmail.comSigned-off-by: NJason Cooper <jason@lakedaemon.net>

arch/arm/boot/dts/kirkwood-b3.dts

@@ -70,8 +70,6 @@
 
 		spi@10600 {
 			status = "okay";
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 
 			m25p16@0 {
 				#address-cells = <1>;

arch/arm/boot/dts/kirkwood-cloudbox.dts

@@ -37,8 +37,6 @@
 		};
 
 		spi@10600 {
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 			status = "okay";
 
 			flash@0 {

arch/arm/boot/dts/kirkwood-dreamplug.dts

@@ -38,8 +38,6 @@
 
 		spi@10600 {
 			status = "okay";
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 
 			m25p40@0 {
 				#address-cells = <1>;

arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts

@@ -50,8 +50,6 @@
 		};
 
 		spi@10600 {
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 			status = "okay";
 
 			flash@0 {

arch/arm/boot/dts/kirkwood-ns2-common.dtsi

@@ -24,8 +24,6 @@
 		};
 
 		spi@10600 {
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 			status = "okay";
 
 			flash@0 {

arch/arm/boot/dts/kirkwood-rd88f6192.dts

@@ -57,8 +57,6 @@
 
 		spi@10600 {
 			status = "okay";
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 
 			m25p128@0 {
 				#address-cells = <1>;

arch/arm/boot/dts/kirkwood-synology.dtsi

@@ -213,8 +213,6 @@
 
 		spi@10600 {
 			status = "okay";
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 
 			m25p80@0 {
 				#address-cells = <1>;

arch/arm/boot/dts/kirkwood-t5325.dts

@@ -65,10 +65,6 @@
 				marvell,function = "gpio";
 			};
 
-			/*
-			 * Redefined from kirkwood-6281.dtsi, because
-			 * we don't use SPI CS on MPP0, but on MPP7.
-			 */
 			pmx_spi: pmx-spi {
 				marvell,pins = "mpp1", "mpp2", "mpp3", "mpp7";
 				marvell,function = "spi";
@@ -87,8 +83,6 @@
 		};
 
 		spi@10600 {
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 			status = "okay";
 
 			flash@0 {

arch/arm/boot/dts/kirkwood-ts219.dtsi

@@ -47,8 +47,6 @@
 		};
 		spi@10600 {
 			status = "okay";
-			pinctrl-0 = <&pmx_spi>;
-			pinctrl-names = "default";
 
 			m25p128@0 {
 				#address-cells = <1>;

arch/arm/boot/dts/kirkwood.dtsi

@@ -88,6 +88,10 @@
 				marvell,function = "nand";
 			};
 
+			/*
+			 * Default SPI0 pinctrl setting with CSn on mpp0,
+			 * overwrite marvell,pins on board level if required.
+			 */
 			pmx_spi: pmx-spi {
 				marvell,pins = "mpp0", "mpp1", "mpp2", "mpp3";
 				marvell,function = "spi";
@@ -127,6 +131,8 @@
 			interrupts = <23>;
 			reg = <0x10600 0x28>;
 			clocks = <&gate_clk 7>;
+			pinctrl-0 = <&pmx_spi>;
+			pinctrl-names = "default";
 			status = "disabled";
 		};