[PATCH 2/2] ARM64: mt8173: dts Add MT8173 cpufreq driver support

pi-cheng.chen pi-cheng.chen at linaro.org
Mon Apr 20 02:27:27 PDT 2015


This patch adds voltage supplies and clocks used by MT8173 cpufreq driver.

Signed-off-by: pi-cheng.chen <pi-cheng.chen at linaro.org>
---
 arch/arm64/boot/dts/mediatek/mt8173-evb.dts | 9 +++++++++
 arch/arm64/boot/dts/mediatek/mt8173.dtsi    | 6 ++++++
 2 files changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
index 96e141c..7a00cfe 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8173-evb.dts
@@ -330,3 +330,12 @@
 	status = "okay";
 	clock-frequency = <100000>;
 };
+
+&cpu0 {
+	proc-supply = <&mt6397_vpca15_reg>;
+};
+
+&cpu2 {
+	proc-supply = <&da9211_vcpu_reg>;
+	sram-supply = <&mt6397_vsramca7_reg>;
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index d9cc84e..b8a5454 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -51,6 +51,9 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a53";
 			reg = <0x000>;
+			clocks = <&infracfg INFRA_CA53SEL>,
+				 <&apmixedsys APMIXED_MAINPLL>;
+			clock-names = "cpu", "intermediate";
 		};
 
 		cpu1: cpu at 1 {
@@ -65,6 +68,9 @@
 			compatible = "arm,cortex-a57";
 			reg = <0x100>;
 			enable-method = "psci";
+			clocks = <&infracfg INFRA_CA57SEL>,
+				 <&apmixedsys APMIXED_MAINPLL>;
+			clock-names = "cpu", "intermediate";
 		};
 
 		cpu3: cpu at 101 {
-- 
1.9.1




More information about the linux-arm-kernel mailing list