ARM: dts: r8a7791: Add GyroADC clock and device node

Add node for the GyroADC block and it's associated clock.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7791.dtsi

@@ -776,6 +776,15 @@
 		status = "disabled";
 	};
 
+	adc: adc@e6e54000 {
+		compatible = "renesas,r8a7791-gyroadc", "renesas,rcar-gyroadc";
+		reg = <0 0xe6e54000 0 64>;
+		clocks = <&mstp9_clks R8A7791_CLK_GYROADC>;
+		clock-names = "fck";
+		power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
+		status = "disabled";
+	};
+
 	scif2: serial@e6e58000 {
 		compatible = "renesas,scif-r8a7791", "renesas,rcar-gen2-scif",
 			     "renesas,scif";
@@ -1425,13 +1434,15 @@
 		mstp9_clks: mstp9_clks@e6150994 {
 			compatible = "renesas,r8a7791-mstp-clocks", "renesas,cpg-mstp-clocks";
 			reg = <0 0xe6150994 0 4>, <0 0xe61509a4 0 4>;
-			clocks = <&cp_clk>, <&cp_clk>, <&cp_clk>, <&cp_clk>,
+			clocks = <&p_clk>,
+				 <&cp_clk>, <&cp_clk>, <&cp_clk>, <&cp_clk>,
 				 <&cp_clk>, <&cp_clk>, <&cp_clk>, <&cp_clk>,
 				 <&p_clk>, <&p_clk>, <&cpg_clocks R8A7791_CLK_QSPI>, <&hp_clk>,
 				 <&cp_clk>, <&hp_clk>, <&hp_clk>, <&hp_clk>,
 				 <&hp_clk>, <&hp_clk>;
 			#clock-cells = <1>;
 			clock-indices = <
+				R8A7791_CLK_GYROADC
 				R8A7791_CLK_GPIO7 R8A7791_CLK_GPIO6 R8A7791_CLK_GPIO5 R8A7791_CLK_GPIO4
 				R8A7791_CLK_GPIO3 R8A7791_CLK_GPIO2 R8A7791_CLK_GPIO1 R8A7791_CLK_GPIO0
 				R8A7791_CLK_RCAN1 R8A7791_CLK_RCAN0 R8A7791_CLK_QSPI_MOD R8A7791_CLK_I2C5
@@ -1439,6 +1450,7 @@
 				R8A7791_CLK_I2C1 R8A7791_CLK_I2C0
 			>;
 			clock-output-names =
+				"gyroadc",
 				"gpio7", "gpio6", "gpio5", "gpio4", "gpio3", "gpio2", "gpio1", "gpio0",
 				"rcan1", "rcan0", "qspi_mod", "i2c5", "i2c6", "i2c4", "i2c3", "i2c2",
 				"i2c1", "i2c0";