于 2017年9月18日 GMT+08:00 下午3:33:36, Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx> 写到: >On Thu, Sep 14, 2017 at 10:52:46PM +0800, Icenowy Zheng wrote: >> Allwinner H3 features a thermal sensor like the one in A33, but has >its >> register re-arranged, the clock divider moved to CCU (originally the >> clock divider is in ADC) and added a pair of bus clock and reset. >> >> Update the binding document to cover H3. >> >> Signed-off-by: Icenowy Zheng <icenowy@xxxxxxx> >> Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx> >> --- >> Changes in v4: >> - Add nvmem calibration data (not yet used by the driver) >> Changes in v3: >> - Clock name changes. >> - Example node name changes. >> - Add interupts (not yet used by the driver). >> >> .../devicetree/bindings/mfd/sun4i-gpadc.txt | 30 >++++++++++++++++++++-- >> 1 file changed, 28 insertions(+), 2 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt >b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt >> index badff3611a98..6c470d584bf9 100644 >> --- a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt >> +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt >> @@ -4,12 +4,26 @@ The Allwinner SoCs all have an ADC that can also >act as a thermal sensor >> and sometimes as a touchscreen controller. >> >> Required properties: >> - - compatible: "allwinner,sun8i-a33-ths", >> + - compatible: must contain one of the following compatibles: >> + - "allwinner,sun8i-a33-ths" >> + - "allwinner,sun8i-h3-ths" >> - reg: mmio address range of the chip, >> - #thermal-sensor-cells: shall be 0, >> - #io-channel-cells: shall be 0, >> >> -Example: >> +Optional properties: >> + - nvmem-cells: A phandle to the calibration data provided by a >nvmem device. >> + If unspecified default values shall be used. >> + - nvmem-cell-names: Should be "calibration-data" > >I'd prefer to have which sensor it applies to here. It wouldn't change >anything for the H3, but it definitely does for example for the A83t >that has two sensors, one for each cluster, and one for the GPU, each >with calibration data. > >What about cluster0-calibration? The calibration data is in fact a 2 word (8 bytes) zone, which is reserved for 4 sensors on all SoCs, even on H3. It's half word per sensor. I prefer to just assume a 2 word cell for every SoC. > >> + >> +Required properties for the following compatibles: >> + - "allwinner,sun8i-h3-ths" >> + - clocks: the bus clock and the input clock of the ADC, >> + - clock-names: should be "bus" and "mod", >> + - resets: the bus reset of the ADC, >> + - interrupts: the sampling interrupt of the ADC, > >For resets and interrupts, you should list all of them. If there's >only one, then there's no point telling which one it is. > > >Thanks, >Maxime -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
