linux-kernel - [PATCH v1 12/13] ARM: tegra: Specify CPU suspend OPP in device-tree

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Date:   Thu, 21 Jan 2021 21:23:07 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Nicolas Chauvet <kwizart@...il.com>,
        Matt Merhar <mattmerhar@...tonmail.com>,
        Peter Geis <pgwipeout@...il.com>
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 12/13] ARM: tegra: Specify CPU suspend OPP in device-tree

Specify CPU suspend OPP in a device-tree, just for consistency. Now CPU
will always suspend on the same frequency.

Tested-by: Peter Geis <pgwipeout@...il.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@...il.com> # PAZ00 T20
Tested-by: Matt Merhar <mattmerhar@...tonmail.com> # Ouya T30
Tested-by: Dmitry Osipenko <digetx@...il.com> # A500 T20 and Nexus7 T30
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm/boot/dts/tegra20-cpu-opp.dtsi | 2 ++
 arch/arm/boot/dts/tegra30-cpu-opp.dtsi | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/tegra20-cpu-opp.dtsi b/arch/arm/boot/dts/tegra20-cpu-opp.dtsi
index 702a635e88e7..135de316383b 100644
--- a/arch/arm/boot/dts/tegra20-cpu-opp.dtsi
+++ b/arch/arm/boot/dts/tegra20-cpu-opp.dtsi
@@ -9,12 +9,14 @@ opp@...000000,750 {
 			clock-latency-ns = <400000>;
 			opp-supported-hw = <0x0F 0x0003>;
 			opp-hz = /bits/ 64 <216000000>;
+			opp-suspend;
 		};
 
 		opp@...000000,800 {
 			clock-latency-ns = <400000>;
 			opp-supported-hw = <0x0F 0x0004>;
 			opp-hz = /bits/ 64 <216000000>;
+			opp-suspend;
 		};
 
 		opp@...000000,750 {
diff --git a/arch/arm/boot/dts/tegra30-cpu-opp.dtsi b/arch/arm/boot/dts/tegra30-cpu-opp.dtsi
index 0f7135006d19..72f2fe26cc0e 100644
--- a/arch/arm/boot/dts/tegra30-cpu-opp.dtsi
+++ b/arch/arm/boot/dts/tegra30-cpu-opp.dtsi
@@ -45,18 +45,21 @@ opp@...000000,800 {
 			clock-latency-ns = <100000>;
 			opp-supported-hw = <0x1F 0x31FE>;
 			opp-hz = /bits/ 64 <204000000>;
+			opp-suspend;
 		};
 
 		opp@...000000,850 {
 			clock-latency-ns = <100000>;
 			opp-supported-hw = <0x1F 0x0C01>;
 			opp-hz = /bits/ 64 <204000000>;
+			opp-suspend;
 		};
 
 		opp@...000000,912 {
 			clock-latency-ns = <100000>;
 			opp-supported-hw = <0x1F 0x0200>;
 			opp-hz = /bits/ 64 <204000000>;
+			opp-suspend;
 		};
 
 		opp@...000000,850 {
-- 
2.29.2