linux-kernel - [RFC PATCH 4/7] arm64: dts: mt8183: add performance state support of scpsys

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Date:   Wed, 2 Jan 2019 21:44:01 +0800
From:   Henry Chen <henryc.chen@...iatek.com>
To:     Viresh Kumar <vireshk@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Ulf Hansson <ulf.hansson@...aro.org>
CC:     Mark Rutland <mark.rutland@....com>,
        Fan Chen <fan.chen@...iatek.com>,
        Weiyi Lu <weiyi.lu@...iatek.com>,
        James Liao <jamesjj.liao@...iatek.com>,
        Kees Cook <keescook@...omium.org>, <linux-pm@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Henry Chen <henryc.chen@...iatek.com>
Subject: [RFC PATCH 4/7] arm64: dts: mt8183: add performance state support of scpsys

Add support for performance state of scpsys on mt8183 platform.

Signed-off-by: Henry Chen <henryc.chen@...iatek.com>
---
 arch/arm64/boot/dts/mediatek/mt8183.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 47926a7..e396410 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -9,6 +9,7 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/mt8183-power.h>
+#include <dt-bindings/soc/mtk,dvfsrc.h>
 
 / {
 	compatible = "mediatek,mt8183";
@@ -243,6 +244,26 @@
 			      "vpu-3", "vpu-4", "vpu-5";
 		infracfg = <&infracfg>;
 		smi_comm = <&smi_common>;
+		operating-points-v2 = <&dvfsrc_opp_table>;
+		dvfsrc_opp_table: opp-table {
+			compatible = "operating-points-v2-mtk-level";
+
+			dvfsrc_vol_min: opp1 {
+				mtk,level = <MT8183_DVFSRC_LEVEL_1>;
+			};
+
+			dvfsrc_freq_medium: opp2 {
+				mtk,level = <MT8183_DVFSRC_LEVEL_2>;
+			};
+
+			dvfsrc_freq_max: opp3 {
+				mtk,level = <MT8183_DVFSRC_LEVEL_3>;
+			};
+
+			dvfsrc_vol_max: opp4 {
+				mtk,level = <MT8183_DVFSRC_LEVEL_4>;
+			};
+		};
 	};
 
 	apmixedsys: syscon@...0c000 {
-- 
1.9.1