ramips: add mt7620/1 sdhci pinmux

Set the pins to the required mode via the pinmux driver. It allows to
get rid of the pinmux related code in the sd card driver.

Signed-off-by: Mathias Kresin <dev@kresin.me>

target/linux/ramips/dts/GB-PC1.dts

@@ -60,9 +60,6 @@
 
 &sdhci {
 	status = "okay";
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&sdhci_pins>;
 };
 
 &spi0 {

target/linux/ramips/dts/GB-PC2.dts

@@ -70,9 +70,6 @@
 
 &sdhci {
 	status = "okay";
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&sdhci_pins>;
 };
 
 &spi0 {

target/linux/ramips/dts/Newifi-D1.dts

@@ -75,9 +75,6 @@
 
 &sdhci {
 	status = "okay";
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&sdhci_pins>;
 };
 
 &spi0 {

target/linux/ramips/dts/PBR-M1.dts

@@ -106,8 +106,6 @@
 
 &sdhci {
 	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&sdhci_pins>;
 };
 
 &spi0 {

target/linux/ramips/dts/Timecloud.dts

@@ -56,9 +56,6 @@
 
 &sdhci {
 	status = "okay";
-
-	pinctrl-names = "default";
-	pinctrl-0 = <&sdhci_pins>;
 };
 
 &spi0 {

target/linux/ramips/dts/U7621-06.dtsi

@@ -96,8 +96,6 @@
 
 &sdhci {
 	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&sdhci_pins>;
 };
 
 &pcie {

target/linux/ramips/dts/mt7620a.dtsi

@@ -417,6 +417,13 @@
 				ralink,function = "pa";
 			};
 		};
+
+		sdhci_pins: sdhci {
+			sdhci {
+				ralink,group = "nd_sd";
+				ralink,function = "sd";
+			};
+		};
 	};
 
 	rstctrl: rstctrl {
@@ -496,6 +503,9 @@
 		interrupt-parent = <&intc>;
 		interrupts = <14>;
 
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdhci_pins>;
+
 		status = "disabled";
 	};
 

target/linux/ramips/dts/mt7621.dtsi

@@ -341,6 +341,9 @@
 
 		interrupt-parent = <&gic>;
 		interrupts = <GIC_SHARED 20 IRQ_TYPE_LEVEL_HIGH>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdhci_pins>;
 	};
 
 	xhci: xhci@1E1C0000 {