[PATCH/RFC v2 09/11] ARM: dts: r8a7793: Add SYSC PM domains

[Geert Uytterhoeven]

Add a device node for the System Controller, with subnodes that
represent the hardware power area hierarchy.
Hook up the first Cortex-A15 CPU core and the Cortex-A15 L2 cache/SCU to
their respective PM domains.

Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
v2:
  - Change one-line summary prefix to match current arm-soc practices,
  - Update compatible values.
---
 arch/arm/boot/dts/r8a7793.dtsi | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi
index 9a30f650aa515b80..843fd3306f35ebb0 100644
--- a/arch/arm/boot/dts/r8a7793.dtsi
+++ b/arch/arm/boot/dts/r8a7793.dtsi
@@ -43,6 +43,7 @@
 			voltage-tolerance = <1>; /* 1% */
 			clocks = <&cpg_clocks R8A7793_CLK_Z>;
 			clock-latency = <300000>; /* 300 us */
+			power-domains = <&pd_ca15_cpu0>;
 
 			/* kHz - uV - OPPs unknown yet */
 			operating-points = <1500000 1000000>,
@@ -57,6 +58,7 @@
 
 	L2_CA15: cache-controller at 0 {
 		compatible = "cache";
+		power-domains = <&pd_ca15_scu>;
 		cache-unified;
 		cache-level = <2>;
 	};
@@ -1144,6 +1146,43 @@
 		};
 	};
 
+	sysc: system-controller at e6180000 {
+		compatible = "renesas,r8a7793-sysc", "renesas,rcar-gen2-sysc";
+		reg = <0 0xe6180000 0 0x0200>;
+
+		pm-domains {
+			#address-cells = <2>;
+			#size-cells = <0>;
+
+			pd_ca15_scu: scu at 12 {
+				reg = <12 0x180>;
+				#address-cells = <2>;
+				#size-cells = <0>;
+				#power-domain-cells = <0>;
+
+				pd_ca15_cpu0: cpu at 0 {
+					reg = <0 0x40>;
+					#power-domain-cells = <0>;
+				};
+
+				pd_ca15_cpu1: cpu at 1 {
+					reg = <1 0x41>;
+					#power-domain-cells = <0>;
+				};
+			};
+
+			pd_sh: sh at 16 {
+				reg = <16 0x80>;
+				#power-domain-cells = <0>;
+			};
+
+			pd_sgx: sgx at 20 {
+				reg = <20 0xc0>;
+				#power-domain-cells = <0>;
+			};
+		};
+	};
+
 	ipmmu_sy0: mmu at e6280000 {
 		compatible = "renesas,ipmmu-r8a7793", "renesas,ipmmu-vmsa";
 		reg = <0 0xe6280000 0 0x1000>;
-- 
1.9.1