| Message ID | 20180724234636.57137-3-mka@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Andy Gross |
| Headers | show |
| Series | [v5,1/3] thermal: qcom-spmi: Use PMIC thermal stage 2 for critical trip points | expand |
Hi, On Tue, Jul 24, 2018 at 4:46 PM, Matthias Kaehlcke <mka@chromium.org> wrote: > The thermal zone uses spmi-temp-alarm as sensor, the trip points > correspond to the PMIC thermal stages 1 and 2. The critical trip > point at 125°C disables the partial PMIC shutdown at stage 2. > > Without an IIO input the sensor only reports a limited number of > temperatures: > > - 37°C for temperatures below 105°C > - 107°C for temperatures >= 105°C and < 125°C > - 127°C for temperatures >= 125°C > > (the numbers correspond to a stage 1 threshold of 105°C) > > Signed-off-by: Matthias Kaehlcke <mka@chromium.org> > --- > Changes in v5: > - removed 'stage2-shutdown-disabled' property from spmi-temp-alarm > - updated commit message > > Changes in v4: > - updated trip point temperatures to match stage 1 and 2 ones > - disabled stage 2 shutdown > - updated commit message > > Changes in v3: > - moved 'thermal-zones' node to the beginning of the .dtsi > > Changes in v2: > - defined 'thermal-zones' node in pm8998.dtsi instead of using a label > to refer to it > - use 105°C hardware trip point as critical trip point > - reduced number of trip points to 2 > - lowered temperature of passive trip point > - updated trip point names and added labels > - updated commit message > --- > arch/arm64/boot/dts/qcom/pm8998.dtsi | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) Looks great! Reviewed-by: Douglas Anderson <dianders@chromium.org> -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm64/boot/dts/qcom/pm8998.dtsi b/arch/arm64/boot/dts/qcom/pm8998.dtsi index 7eea94701b23..34c259ba3919 100644 --- a/arch/arm64/boot/dts/qcom/pm8998.dtsi +++ b/arch/arm64/boot/dts/qcom/pm8998.dtsi @@ -3,6 +3,31 @@ #include <dt-bindings/spmi/spmi.h> #include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/thermal/thermal.h> + +/ { + thermal-zones { + pm8998 { + polling-delay-passive = <250>; + polling-delay = <1000>; + + thermal-sensors = <&pm8998_temp>; + + trips { + pm8998_alert0: pm8998-alert0 { + temperature = <105000>; + hysteresis = <2000>; + type = "passive"; + }; + pm8998_crit: pm8998-crit { + temperature = <125000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + }; + }; +}; &spmi_bus { pm8998_lsid0: pmic@0 {
The thermal zone uses spmi-temp-alarm as sensor, the trip points correspond to the PMIC thermal stages 1 and 2. The critical trip point at 125°C disables the partial PMIC shutdown at stage 2. Without an IIO input the sensor only reports a limited number of temperatures: - 37°C for temperatures below 105°C - 107°C for temperatures >= 105°C and < 125°C - 127°C for temperatures >= 125°C (the numbers correspond to a stage 1 threshold of 105°C) Signed-off-by: Matthias Kaehlcke <mka@chromium.org> --- Changes in v5: - removed 'stage2-shutdown-disabled' property from spmi-temp-alarm - updated commit message Changes in v4: - updated trip point temperatures to match stage 1 and 2 ones - disabled stage 2 shutdown - updated commit message Changes in v3: - moved 'thermal-zones' node to the beginning of the .dtsi Changes in v2: - defined 'thermal-zones' node in pm8998.dtsi instead of using a label to refer to it - use 105°C hardware trip point as critical trip point - reduced number of trip points to 2 - lowered temperature of passive trip point - updated trip point names and added labels - updated commit message --- arch/arm64/boot/dts/qcom/pm8998.dtsi | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)