| Message ID | 20201013102358.22588-1-michael.kao@mediatek.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | mt8183: Add Mediatek thermal driver and dtsi | expand |
On Tue, Oct 13, 2020 at 6:24 PM Michael Kao <michael.kao@mediatek.com> wrote: > > From: "Michael.Kao" <michael.kao@mediatek.com> > > Add thermal zone node to Mediatek MT8183 dts file. > > Evaluate the thermal zone every 500ms while not cooling > and every 100ms when passive cooling is performed. > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org> > Signed-off-by: Michael Kao <michael.kao@mediatek.com> > --- > arch/arm64/boot/dts/mediatek/mt8183.dtsi | 84 ++++++++++++++++++++++++ > 1 file changed, 84 insertions(+) > > diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi > index 8fed72bb35d7..1cd093cf33f3 100644 > --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi > +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi > @@ -430,6 +430,86 @@ > status = "disabled"; > }; > > + thermal: thermal@1100b000 { > + #thermal-sensor-cells = <1>; > + compatible = "mediatek,mt8183-thermal"; > + reg = <0 0x1100b000 0 0x1000>; > + clocks = <&infracfg CLK_INFRA_THERM>, > + <&infracfg CLK_INFRA_AUXADC>; > + clock-names = "therm", "auxadc"; > + resets = <&infracfg MT8183_INFRACFG_AO_THERM_SW_RST>; According to binding document[1], interrupts is required. interrupts = <0 76 IRQ_TYPE_LEVEL_LOW>; [1] https://elixir.bootlin.com/linux/v5.10-rc3/source/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt#L18 > + mediatek,auxadc = <&auxadc>; > + mediatek,apmixedsys = <&apmixedsys>; > + nvmem-cells = <&thermal_calibration>; > + nvmem-cell-names = "calibration-data"; > + }; > + > + thermal-zones { > + cpu_thermal: cpu_thermal { > + polling-delay-passive = <100>; > + polling-delay = <500>; > + thermal-sensors = <&thermal 0>; > + sustainable-power = <5000>; > + }; > + > + /* The tzts1 ~ tzts6 don't need to polling */ > + /* The tzts1 ~ tzts6 don't need to thermal throttle */ > + > + tzts1: tzts1 { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + thermal-sensors = <&thermal 1>; > + sustainable-power = <5000>; > + trips {}; > + cooling-maps {}; > + }; > + > + tzts2: tzts2 { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + thermal-sensors = <&thermal 2>; > + sustainable-power = <5000>; > + trips {}; > + cooling-maps {}; > + }; > + > + tzts3: tzts3 { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + thermal-sensors = <&thermal 3>; > + sustainable-power = <5000>; > + trips {}; > + cooling-maps {}; > + }; > + > + tzts4: tzts4 { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + thermal-sensors = <&thermal 4>; > + sustainable-power = <5000>; > + trips {}; > + cooling-maps {}; > + }; > + > + tzts5: tzts5 { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + thermal-sensors = <&thermal 5>; > + sustainable-power = <5000>; > + trips {}; > + cooling-maps {}; > + }; > + > + tztsABB: tztsABB { > + polling-delay-passive = <0>; > + polling-delay = <0>; > + thermal-sensors = <&thermal 6>; > + sustainable-power = <5000>; > + trips {}; > + cooling-maps {}; > + }; > + }; > + > i2c3: i2c@1100f000 { > compatible = "mediatek,mt8183-i2c"; > reg = <0 0x1100f000 0 0x1000>, > @@ -675,6 +755,10 @@ > compatible = "mediatek,mt8183-efuse", > "mediatek,efuse"; > reg = <0 0x11f10000 0 0x1000>; > + > + thermal_calibration: calib@180 { > + reg = <0x180 0xc>; > + }; > }; > > u3phy: usb-phy@11f40000 { > -- > 2.18.0
This patchset supports for MT8183 chip to mtk_thermal.c. Add thermal zone of all the thermal sensor in SoC for another get temperatrue. They don't need to thermal throttle. And we bind coolers for thermal zone nodes of cpu_thermal. Changes in v5: - Rebase to kernel-5.9-rc1. - Revise the title of cover letter. - Drop "[v4,7/7] thermal: mediatek: use spinlock to protect PTPCORESEL" - [2/2] - Add the judgement to the version of raw_to_mcelsius. Changes in v4: - Rebase to kernel-5.6-rc1. - [1/7] - Squash thermal zone settings in the dtsi from [v3,5/8] arm64: dts: mt8183: Increase polling frequency for CPU thermal zone. - Remove the property of interrupts and mediatek,hw-reset-temp. - [2/7] - Correct commit message. - [4/7] - Change the target temperature to the 80C and change the commit message. - [6/7] - Adjust newline alignment. - Fix the judgement on the return value of registering thermal zone. Changes in v3: - Rebase to kernel-5.5-rc1. - [1/8] - Update sustainable power of cpu, tzts1~5 and tztsABB. - [7/8] - Bypass the failure that non cpu_thermal sensor is not find in thermal-zones in dts, which is normal for mt8173, so prompt a warning here instead of failing. Return -EAGAIN instead of -EACCESS on the first read of sensor that often are bogus values. This can avoid following warning on boot: thermal thermal_zone6: failed to read out thermal zone (-13) Changes in v2: - [1/8] - Add the sustainable-power,trips,cooling-maps to the tzts1~tztsABB. - [4/8] - Add the min opp of cpu throttle. Matthias Kaehlcke (1): arm64: dts: mt8183: Configure CPU cooling Michael Kao (2): thermal: mediatek: add another get_temp ops for thermal sensors arm64: dts: mt8183: add thermal zone node arch/arm64/boot/dts/mediatek/mt8183.dtsi | 140 +++++++++++++++++++++++ drivers/thermal/mtk_thermal.c | 99 ++++++++++++---- 2 files changed, 216 insertions(+), 23 deletions(-)