ARM: shmobile: r8a7791: add MLB+ clock

Add MLB+ clock to R8A7791 device tree.
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
[Sergei: rebased, renamed, added changelog]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7791.dtsi

@@ -1154,17 +1154,17 @@ R8A7791_CLK_LVDS0
 		mstp8_clks: mstp8_clks@e6150990 {
 			compatible = "renesas,r8a7791-mstp-clocks", "renesas,cpg-mstp-clocks";
 			reg = <0 0xe6150990 0 4>, <0 0xe61509a0 0 4>;
-			clocks = <&zg_clk>, <&zg_clk>, <&zg_clk>, <&zg_clk>, <&p_clk>,
-				 <&zs_clk>, <&zs_clk>;
+			clocks = <&hp_clk>, <&zg_clk>, <&zg_clk>, <&zg_clk>,
+			         <&zg_clk>, <&p_clk>, <&zs_clk>, <&zs_clk>;
 			#clock-cells = <1>;
 			clock-indices = <
-				R8A7791_CLK_IPMMU_SGX
+				R8A7791_CLK_IPMMU_SGX R8A7791_CLK_MLB
 				R8A7791_CLK_VIN2 R8A7791_CLK_VIN1 R8A7791_CLK_VIN0
 				R8A7791_CLK_ETHER R8A7791_CLK_SATA1 R8A7791_CLK_SATA0
 			>;
 			clock-output-names =
-				"ipmmu_sgx", "vin2", "vin1", "vin0", "ether", "sata1",
-				"sata0";
+				"ipmmu_sgx", "mlb", "vin2", "vin1", "vin0", "ether",
+				"sata1", "sata0";
 		};
 		mstp9_clks: mstp9_clks@e6150994 {
 			compatible = "renesas,r8a7791-mstp-clocks", "renesas,cpg-mstp-clocks";

include/dt-bindings/clock/r8a7791-clock.h

@@ -92,6 +92,7 @@
 
 /* MSTP8 */
 #define R8A7791_CLK_IPMMU_SGX		0
+#define R8A7791_CLK_MLB			2
 #define R8A7791_CLK_VIN2		9
 #define R8A7791_CLK_VIN1		10
 #define R8A7791_CLK_VIN0		11