Re: [PATCH v4 2/4] dt-bindings: document Rockchip thermal

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在 2014年09月03日 16:07, Heiko Stübner 写道:
Am Mittwoch, 3. September 2014, 10:10:37 schrieb Caesar Wang:
This add the necessary binding documentation for the thermal
found on Rockchip SoCs

Signed-off-by: zhaoyifeng <zyf@xxxxxxxxxxxxxx>
Signed-off-by: Caesar Wang <caesar.wang@xxxxxxxxxxxxxx>
---
  .../devicetree/bindings/thermal/rockchip-thermal.txt | 20
++++++++++++++++++++ 1 file changed, 20 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..1ed4d4c
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
@@ -0,0 +1,20 @@
+* 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.
You're using the passive-temp, critical-temp and force-shut-temp properties in
your driver without declaring them here.

frankly,the about are need be declared. but there are 4 types[0] for trip in thermal framework, there is no force-shut for me. So I want to change it three additional properties in [PATCH V4 4/4],


[0]
{
    THERMAL_TRIP_CRITICAL,
    THERMAL_TRIP_HOT,
    THERMAL_TRIP_PASSIVE,
    THERMAL_TRIP_ACTIVE,
}

But more importantly, please use the generic trip-points for this. I guess it
shouldn't be a problem to introduce a "forced-shutdown" trippoint [0] for the
additional trip-point you have - thermal maintainers, please shout if I'm
wrong :-)

It's a good option.
I can send a patch,but I don't know whether the thermal maintainers will accept it.

Maybe,they have a better way to suggest it.:-)


PS:I will sent a new patch If I still have no received their suggestions in two days.


Heiko


[0] in a separate patch, changing
- thermal_trip_type enum in include/linux/thermal.h
- trip_types mapping in drivers/thermal/of-thermal.c
- Documentation/devicetree/bindings/thermal/thermal.txt

+
+Example:
+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";
+};




--
Best regards,
Caesar


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