linux-kernel - [PATCH v1 5/7] ARM: tegra: Add cooling cells to ACTMON device-tree node

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Message-Id: <20210510211008.30300-6-digetx@gmail.com>
Date:   Tue, 11 May 2021 00:10:06 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Rob Herring <robh+dt@...nel.org>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Peter Geis <pgwipeout@...il.com>,
        Matt Merhar <mattmerhar@...tonmail.com>
Cc:     linux-tegra@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: [PATCH v1 5/7] ARM: tegra: Add cooling cells to ACTMON device-tree node

The ACTMON module monitors activity of memory clients and decisions
about a minimum required memory frequency are made based on info from
ACTMON. Add cooling cells to ACTMON device-tree node in order to turn
it into a cooling device that will throttle memory freq on overheat.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 arch/arm/boot/dts/tegra124.dtsi | 3 ++-
 arch/arm/boot/dts/tegra30.dtsi  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 0b678afb2a5c..8b38f123f554 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -283,7 +283,7 @@ flow-controller@...07000 {
 		reg = <0x0 0x60007000 0x0 0x1000>;
 	};
 
-	actmon@...0c800 {
+	actmon: actmon@...0c800 {
 		compatible = "nvidia,tegra124-actmon";
 		reg = <0x0 0x6000c800 0x0 0x400>;
 		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
@@ -295,6 +295,7 @@ actmon@...0c800 {
 		operating-points-v2 = <&emc_bw_dfs_opp_table>;
 		interconnects = <&mc TEGRA124_MC_MPCORER &emc>;
 		interconnect-names = "cpu-read";
+		#cooling-cells = <2>;
 	};
 
 	gpio: gpio@...0d000 {
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 44a6dbba7081..c577c191be4b 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -410,7 +410,7 @@ ahb: ahb@...0c000 {
 		reg = <0x6000c000 0x150>; /* AHB Arbitration + Gizmo Controller */
 	};
 
-	actmon@...0c800 {
+	actmon: actmon@...0c800 {
 		compatible = "nvidia,tegra30-actmon";
 		reg = <0x6000c800 0x400>;
 		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
@@ -422,6 +422,7 @@ actmon@...0c800 {
 		operating-points-v2 = <&emc_bw_dfs_opp_table>;
 		interconnects = <&mc TEGRA30_MC_MPCORER &emc>;
 		interconnect-names = "cpu-read";
+		#cooling-cells = <2>;
 	};
 
 	gpio: gpio@...0d000 {
-- 
2.30.2