[PATCH 5/6] arm64: dts: qcom: qcs404: Add DVFS support
From: Jorge Ramirez-Ortiz <hidden>
Date: 2019-08-26 16:48:31
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
Support dynamic voltage and frequency scaling on qcs404.
CPUFreq will soon be superseded by Core Power Reduction (CPR, a form
of Adaptive Voltage Scaling found on some Qualcomm SoCs like the
qcs404).
Due to the CPR upstreaming already being in progress - and some
commits already merged - the following commit will need to be
reverted to enable CPUFreq support
Author: Jorge Ramirez-Ortiz [off-list ref]
Date: Thu Jul 25 12:41:36 2019 +0200
cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist
Co-developed-by: Niklas Cassel <redacted>
Signed-off-by: Niklas Cassel <redacted>
Signed-off-by: Jorge Ramirez-Ortiz <redacted>
Reviewed-by: Bjorn Andersson <redacted>
---
arch/arm64/boot/dts/qcom/qcs404.dtsi | 31 ++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi b/arch/arm64/boot/dts/qcom/qcs404.dtsi
index 34360b2d3e0d..e425e54e1af9 100644
--- a/arch/arm64/boot/dts/qcom/qcs404.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi@@ -36,6 +36,10 @@ cpu-idle-states = <&CPU_SLEEP_0>; next-level-cache = <&L2_0>; #cooling-cells = <2>; + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + cpu-supply = <&pms405_s3>; + }; CPU1: cpu@101 {
@@ -46,6 +50,9 @@ cpu-idle-states = <&CPU_SLEEP_0>; next-level-cache = <&L2_0>; #cooling-cells = <2>; + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + cpu-supply = <&pms405_s3>; }; CPU2: cpu@102 {
@@ -56,6 +63,9 @@ cpu-idle-states = <&CPU_SLEEP_0>; next-level-cache = <&L2_0>; #cooling-cells = <2>; + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + cpu-supply = <&pms405_s3>; }; CPU3: cpu@103 {
@@ -66,6 +76,9 @@ cpu-idle-states = <&CPU_SLEEP_0>; next-level-cache = <&L2_0>; #cooling-cells = <2>; + clocks = <&apcs_glb>; + operating-points-v2 = <&cpu_opp_table>; + cpu-supply = <&pms405_s3>; }; L2_0: l2-cache {
@@ -88,6 +101,24 @@ }; }; + cpu_opp_table: cpu-opp-table { + compatible = "operating-points-v2"; + opp-shared; + + opp-1094400000 { + opp-hz = /bits/ 64 <1094400000>; + opp-microvolt = <1224000 1224000 1224000>; + }; + opp-1248000000 { + opp-hz = /bits/ 64 <1248000000>; + opp-microvolt = <1288000 1288000 1288000>; + }; + opp-1401600000 { + opp-hz = /bits/ 64 <1401600000>; + opp-microvolt = <1384000 1384000 1384000>; + }; + }; + firmware { scm: scm { compatible = "qcom,scm-qcs404", "qcom,scm";
--
2.22.0