arm64: dts: renesas: rzg2lc-smarc: Enable i2c{0,1,2}

Enable i2c{0,1} on RZ/G2LC SMARC EVK by deleting respective
entries from board dts and adding pincontrol entries to the
soc-pinctrl dtsi. Also enable i2c2 by adding to soc dtsi.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220303164155.7706-4-biju.das.jz@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts

@@ -14,18 +14,6 @@ / {
 	compatible = "renesas,smarc-evk", "renesas,r9a07g044c2", "renesas,r9a07g044";
 };
 
-&i2c0 {
-	/delete-property/ pinctrl-0;
-	/delete-property/ pinctrl-names;
-	status = "disabled";
-};
-
-&i2c1 {
-	/delete-property/ pinctrl-0;
-	/delete-property/ pinctrl-names;
-	status = "disabled";
-};
-
 &spi1 {
 	/delete-property/ pinctrl-0;
 	/delete-property/ pinctrl-names;

arch/arm64/boot/dts/renesas/rzg2lc-smarc-pinfunction.dtsi

@@ -35,6 +35,21 @@ can1_pins: can1 {
 	};
 #endif
 
+	i2c0_pins: i2c0 {
+		pins = "RIIC0_SDA", "RIIC0_SCL";
+		input-enable;
+	};
+
+	i2c1_pins: i2c1 {
+		pins = "RIIC1_SDA", "RIIC1_SCL";
+		input-enable;
+	};
+
+	i2c2_pins: i2c2 {
+		pinmux = <RZG2L_PORT_PINMUX(42, 3, 1)>, /* SDA */
+			 <RZG2L_PORT_PINMUX(42, 4, 1)>; /* SCL */
+	};
+
 	scif0_pins: scif0 {
 		pinmux = <RZG2L_PORT_PINMUX(38, 0, 1)>,	/* TxD */
 			 <RZG2L_PORT_PINMUX(38, 1, 1)>;	/* RxD */

arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi

@@ -61,7 +61,11 @@ &canfd {
 #endif
 
 &i2c2 {
-	status = "disabled";
+	pinctrl-0 = <&i2c2_pins>;
+	pinctrl-names = "default";
+	clock-frequency = <400000>;
+
+	status = "okay";
 
 	wm8978: codec@1a {
 		compatible = "wlf,wm8978";