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Date: Fri, 3 May 2019 16:03:58 +0800
From: Hsin-Yi Wang <hsinyi@...omium.org>
To: "michael.kao" <michael.kao@...iatek.com>
Cc: fan.chen@...iatek.com, jamesjj.liao@...iatek.com,
dawei.chien@...iatek.com, louis.yu@...iatek.com,
roger.lu@...iatek.com, Zhang Rui <rui.zhang@...el.com>,
Eduardo Valentin <edubezval@...il.com>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Matthias Brugger <matthias.bgg@...il.com>,
devicetree@...r.kernel.org, linux-mediatek@...ts.infradead.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-pm@...r.kernel.org
Subject: Re: [PATCH 1/8] arm64: dts: mt8183: add thermal zone node
On Thu, May 2, 2019 at 10:43 AM michael.kao <michael.kao@...iatek.com> wrote:
>
> Add thermal zone node to Mediatek MT8183 dts file.
>
> Signed-off-by: Michael Kao <michael.kao@...iatek.com>
> ---
> arch/arm64/boot/dts/mediatek/mt8183.dtsi | 64 ++++++++++++++++++++++++++++++++
> 1 file changed, 64 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index 926df75..b92116f 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -334,6 +334,67 @@
> status = "disabled";
> };
>
> + thermal: thermal@...0b000 {
> + #thermal-sensor-cells = <1>;
> + compatible = "mediatek,mt8183-thermal";
> + reg = <0 0x1100b000 0 0x1000>;
> + interrupts = <0 76 IRQ_TYPE_LEVEL_LOW>;
> + clocks = <&infracfg CLK_INFRA_THERM>,
> + <&infracfg CLK_INFRA_AUXADC>;
> + clock-names = "therm", "auxadc";
> + resets = <&infracfg MT8183_INFRACFG_AO_THERM_SW_RST>;
> + mediatek,auxadc = <&auxadc>;
> + mediatek,apmixedsys = <&apmixedsys>;
> + mediatek,hw-reset-temp = <117000>;
> + nvmem-cells = <&thermal_calibration>;
> + nvmem-cell-names = "calibration-data";
> + };
> +
> + thermal-zones {
> + cpu_thermal: cpu_thermal {
> + polling-delay-passive = <1000>;
> + polling-delay = <1000>;
> +
> + thermal-sensors = <&thermal 0>;
> + sustainable-power = <1500>;
> + };
> +
> + tzts1: tzts1 {
> + polling-delay-passive = <1000>;
> + polling-delay = <1000>;
> + thermal-sensors = <&thermal 1>;
Is sustainable-power required for tzts? Though it's an optional
property, kernel would have warning:
[ 0.631556] thermal thermal_zone1: power_allocator:
sustainable_power will be estimated
[ 0.639586] thermal thermal_zone2: power_allocator:
sustainable_power will be estimated
[ 0.647611] thermal thermal_zone3: power_allocator:
sustainable_power will be estimated
[ 0.655635] thermal thermal_zone4: power_allocator:
sustainable_power will be estimated
[ 0.663658] thermal thermal_zone5: power_allocator:
sustainable_power will be estimated
if no sustainable-power assigned.
> + };
> +
> + tzts2: tzts2 {
> + polling-delay-passive = <1000>;
> + polling-delay = <1000>;
> + thermal-sensors = <&thermal 2>;
> + };
> +
> + tzts3: tzts3 {
> + polling-delay-passive = <1000>;
> + polling-delay = <1000>;
> + thermal-sensors = <&thermal 3>;
> + };
> +
> + tzts4: tzts4 {
> + polling-delay-passive = <1000>;
> + polling-delay = <1000>;
> + thermal-sensors = <&thermal 4>;
> + };
> +
> + tzts5: tzts5 {
> + polling-delay-passive = <1000>;
> + polling-delay = <1000>;
> + thermal-sensors = <&thermal 5>;
> + };
> +
> + tztsABB: tztsABB {
> + polling-delay-passive = <1000>;
> + polling-delay = <1000>;
> + thermal-sensors = <&thermal 6>;
> + };
> + };
> audiosys: syscon@...20000 {
> compatible = "mediatek,mt8183-audiosys", "syscon";
> reg = <0 0x11220000 0 0x1000>;
> @@ -368,6 +429,9 @@
> compatible = "mediatek,mt8183-efuse",
> "mediatek,efuse";
> reg = <0 0x11f10000 0 0x1000>;
> + thermal_calibration: calib@180 {
> + reg = <0x180 0xc>;
> + };
> };
>
> mfgcfg: syscon@...00000 {
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