From: Devin Li <Devin.Li@cixtech.com>
Date: Wed, 6 May 2026 02:52:54 +0000 (+0800)
Subject: arm64: dts: cix: Add SCMI performance domains for CPUFreq on Sky1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aa771fbe696a8f9d7884409a271558217be08d32;p=thirdparty%2Flinux.git

arm64: dts: cix: Add SCMI performance domains for CPUFreq on Sky1

Add SCMI Protocol 13 (Performance) node under ap_to_pm_scmi with
domains.

Define SKY1_PERF_* macros in sky1-power.h for all performance domain
IDs (CPU L/B0/B1/M0/M1, GPU, DSU, NPU, VPU, CI700, NI700), and
wire each CPU node to its corresponding performance domain using
power-domains and power-domain-names properties.

Signed-off-by: Devin Li <Devin.Li@cixtech.com>
Link: https://lore.kernel.org/r/20260506025254.3602623-1-Devin.Li@cixtech.com
Signed-off-by: Peter Chen <peter.chen@cixtech.com>
---

diff --git a/arch/arm64/boot/dts/cix/sky1-power.h b/arch/arm64/boot/dts/cix/sky1-power.h
index 53f4a3af36b39..144567579b719 100644
--- a/arch/arm64/boot/dts/cix/sky1-power.h
+++ b/arch/arm64/boot/dts/cix/sky1-power.h
@@ -30,4 +30,17 @@
 #define SKY1_PD_ISP0		20
 #define SKY1_PD_GPU		21
 
+#define SKY1_PERF_GPU_CORE	0
+#define SKY1_PERF_GPU_TOP	1
+#define SKY1_PERF_CPU_L     2
+#define SKY1_PERF_CPU_B0	3
+#define SKY1_PERF_CPU_B1	4
+#define SKY1_PERF_CPU_M0	5
+#define SKY1_PERF_CPU_M1	6
+#define SKY1_PERF_DSU	    7
+#define SKY1_PERF_NPU	    8
+#define SKY1_PERF_VPU	    9
+#define SKY1_PERF_CI700	    10
+#define SKY1_PERF_NI700	    11
+
 #endif
diff --git a/arch/arm64/boot/dts/cix/sky1.dtsi b/arch/arm64/boot/dts/cix/sky1.dtsi
index bb5cfb1f21133..9f80e1aa070a0 100644
--- a/arch/arm64/boot/dts/cix/sky1.dtsi
+++ b/arch/arm64/boot/dts/cix/sky1.dtsi
@@ -22,6 +22,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x0>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
 		};
 
@@ -30,6 +32,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x100>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
 		};
 
@@ -38,6 +42,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x200>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
 		};
 
@@ -46,6 +52,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x300>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_L>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <403>;
 		};
 
@@ -54,6 +62,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x400>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M0>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -62,6 +72,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x500>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M0>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -70,6 +82,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x600>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M1>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -78,6 +92,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x700>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_M1>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -86,6 +102,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x800>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B0>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -94,6 +112,8 @@
 			enable-method = "psci";
 			reg = <0x0 0x900>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B0>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -102,6 +122,8 @@
 			enable-method = "psci";
 			reg = <0x0 0xa00>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B1>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -110,6 +132,8 @@
 			enable-method = "psci";
 			reg = <0x0 0xb00>;
 			device_type = "cpu";
+			power-domains = <&scmi_dvfs SKY1_PERF_CPU_B1>;
+			power-domain-names = "perf";
 			capacity-dmips-mhz = <1024>;
 		};
 
@@ -164,6 +188,11 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 
+			scmi_dvfs: protocol@13 {
+				reg = <0x13>;
+				#power-domain-cells = <1>;
+			};
+
 			scmi_clk: protocol@14 {
 				reg = <0x14>;
 				#clock-cells = <1>;