Hi Tomasz,
On 06/18/2014 05:35 PM, Tomasz Figa wrote:
> Hi Chanwoo,
>
> On 18.06.2014 04:21, Chanwoo Choi wrote:
>> This patch add DT binding documentation for Exynos3250 ADC IP. Exynos3250 has
>> special clock ('sclk_tsadc') for ADC which provide clock to internal ADC.
>>
>> Signed-off-by: Chanwoo Choi <cw00.c...@samsung.com>
>> Acked-by: Kyungmin Park <kyungmin.p...@samsung.com>
>> ---
>> .../devicetree/bindings/arm/samsung/exynos-adc.txt | 20
>> ++++++++++++++++++++
>> 1 file changed, 20 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
>> b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
>> index 5d49f2b..3a5af82 100644
>> --- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
>> +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
>> @@ -14,6 +14,8 @@ Required properties:
>> for exynos4412/5250 controllers.
>> Must be "samsung,exynos-adc-v2" for
>> future controllers.
>> + Must be "samsung,exynos3250-adc-v2" for
>> + for exynos3250 controllers.
>
> You might change the last line for:
>
> for controllers compatible with ADC of Exynos3250.
>
> This is to make it also account for possible future SoCs which need
> exactly the same handling.
OK, I'll modify it as folloiwng according to your comment:
>> + Must be "samsung,exynos3250-adc-v2" for
>> + for controllers compatible with ADC of
>> Exynos3250.
>
>
>> - reg: Contains ADC register address range (base
>> address and
>> length) and the address of the phy enable register.
>> - interrupts: Contains the interrupt information for the
>> timer. The
>> @@ -21,7 +23,11 @@ Required properties:
>> the Samsung device uses.
>> - #io-channel-cells = <1>; As ADC has multiple outputs
>> - clocks From common clock binding: handle to adc clock.
>> + From common clock binding: handle to sclk_tsadc clock
>> + if using Exynos3250.
>
> This is not clear. It might sound like the "sclk_tsadc" clock is used on
> Exynos3250 and "adc" on remaining SoCs. I'd write this simply as:
>
>>From common clock bindings: handles to clocks specified in "clock-names"
> property, in the same order.
I'll modify it.
>
>> - clock-names From common clock binding: Shall be "adc".
>> + From common clock binding: Shall be "sclk_tsadc"
>> + if using Exynos3250.
>
> This is also not clear. I'd recommend something like:
>
>>From common clock bindings: list of clock input names used by ADC block:
> - "adc" : ADC bus clock,
> - "sclk_tsadc" : ADC special clock (only for Exynos3250 and
> compatible ADC blocks).
I'll modify it.
Best Regards,
Chanwoo Choi
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