ARM: shmobile: r8a73a4 dtsi: Add SoC-specific IIC compatible properties

The IIC nodes used the generic compatible properties only.
This may cause the driver to fail when using Standard Speed on IIC
masters where the operational clock is driven by the 130 MHz HP clock.

Add the SoC-specific compatible property to fix this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a73a4.dtsi

@@ -106,7 +106,7 @@ pfc: pfc@e6050000 {
 	i2c5: i2c@e60b0000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe60b0000 0 0x428>;
 		interrupts = <0 179 IRQ_TYPE_LEVEL_HIGH>;
 
@@ -205,7 +205,7 @@ thermal@e61f0000 {
 	i2c0: i2c@e6500000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6500000 0 0x428>;
 		interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
@@ -214,7 +214,7 @@ i2c0: i2c@e6500000 {
 	i2c1: i2c@e6510000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6510000 0 0x428>;
 		interrupts = <0 175 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
@@ -223,7 +223,7 @@ i2c1: i2c@e6510000 {
 	i2c2: i2c@e6520000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6520000 0 0x428>;
 		interrupts = <0 176 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
@@ -232,7 +232,7 @@ i2c2: i2c@e6520000 {
 	i2c3: i2c@e6530000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6530000 0 0x428>;
 		interrupts = <0 177 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
@@ -241,7 +241,7 @@ i2c3: i2c@e6530000 {
 	i2c4: i2c@e6540000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6540000 0 0x428>;
 		interrupts = <0 178 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
@@ -250,7 +250,7 @@ i2c4: i2c@e6540000 {
 	i2c6: i2c@e6550000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6550000 0 0x428>;
 		interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
@@ -259,7 +259,7 @@ i2c6: i2c@e6550000 {
 	i2c7: i2c@e6560000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6560000 0 0x428>;
 		interrupts = <0 185 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
@@ -268,7 +268,7 @@ i2c7: i2c@e6560000 {
 	i2c8: i2c@e6570000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "renesas,rmobile-iic";
+		compatible = "renesas,iic-r8a73a4", "renesas,rmobile-iic";
 		reg = <0 0xe6570000 0 0x428>;
 		interrupts = <0 173 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";