Messages in this thread | | | Date | Wed, 29 Oct 2014 11:02:47 +0800 | From | Caesar Wang <> | Subject | Re: [PATCH v15 2/5] dt-bindings: document Rockchip thermal |
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在 2014年10月29日 07:46, Dmitry Torokhov 写道: > On Tue, Oct 28, 2014 at 04:51:24PM +0800, Caesar Wang wrote: >> This add the necessary binding documentation for the thermal >> found on Rockchip SoCs >> >> Signed-off-by: zhaoyifeng <zyf@rock-chips.com> >> Signed-off-by: Caesar Wang <caesar.wang@rock-chips.com> > Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Added.
Thank you! > >> --- >> .../bindings/thermal/rockchip-thermal.txt | 62 ++++++++++++++++++++++ >> 1 file changed, 62 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/thermal/rockchip-thermal.txt >> >> diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt >> new file mode 100644 >> index 0000000..fc30e1b >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt >> @@ -0,0 +1,62 @@ >> +* Temperature Sensor ADC (TSADC) on rockchip SoCs >> + >> +Required properties: >> +- compatible : "rockchip,rk3288-tsadc" >> +- reg : physical base address of the controller and length of memory mapped >> + region. >> +- interrupts : The interrupt number to the cpu. The interrupt specifier format >> + depends on the interrupt controller. >> +- clocks : Must contain an entry for each entry in clock-names. >> +- clock-names : Shall be "tsadc" for the converter-clock, and "apb_pclk" for >> + the peripheral clock. >> +- #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description. >> +- hw-shut-temp : The hardware-controlled shutdown temperature value. >> +- tsadc-tshut-mode : The hardware-controlled shutdown mode 0:CRU 1:GPIO. >> +- tsadc-tshut-polarity : The hardware-controlled active polarity 0:LOW 1:HIGH. >> + >> +Exiample: >> +tsadc: tsadc@ff280000 { >> + compatible = "rockchip,rk3288-tsadc"; >> + reg = <0xff280000 0x100>; >> + interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>; >> + clocks = <&cru SCLK_TSADC>, <&cru PCLK_TSADC>; >> + clock-names = "tsadc", "apb_pclk"; >> + pinctrl-names = "default"; >> + pinctrl-0 = <&otp_out>; >> + #thermal-sensor-cells = <1>; >> + hw-shut-temp = <125000>; >> + tsadc-tshut-mode = <0>; >> + tsadc-tshut-polarity = <0>; >> +}; >> + >> +Example: referring to thermal sensors: >> +thermal-zones { >> + cpu_thermal: cpu_thermal { >> + polling-delay-passive = <1000>; /* milliseconds */ >> + polling-delay = <5000>; /* milliseconds */ >> + >> + /* sensor ID */ >> + thermal-sensors = <&tsadc 1>; >> + >> + trips { >> + cpu_alert0: cpu_alert { >> + temperature = <80000>; /* millicelsius */ >> + hysteresis = <2000>; /* millicelsius */ >> + type = "passive"; >> + }; >> + cpu_crit: cpu_crit { >> + temperature = <120000>; /* millicelsius */ >> + hysteresis = <2000>; /* millicelsius */ >> + type = "critical"; >> + }; >> + }; >> + >> + cooling-maps { >> + map0 { >> + trip = <&cpu_alert0>; >> + cooling-device = >> + <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; >> + }; >> + }; >> + }; >> +}; >> -- >> 1.9.1 >> >>
-- Best regards, Caesar
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