On 04/14/2014 08:07 PM, Sylwester Nawrocki wrote:
> On 08/04/14 16:36, Vivek Gautam wrote:
>> diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
>> index 28f9edb..6d99ba9 100644
>> --- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
>> +++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
>> @@ -74,3 +74,45 @@ phy-consumer@12340000 {
>>
>> Refer to DT bindings documentation of particular PHY consumer devices for more
>> information about required PHYs and the way of specification.
>> +
>> +Samsung Exynos5 SoC series USB DRD PHY controller
>> +--------------------------------------------------
>> +
>> +Required properties:
>> +- compatible : Should be set to one of the following supported values:
>> + - "samsung,exynos5250-usbdrd-phy" - for exynos5250 SoC,
>> + - "samsung,exynos5420-usbdrd-phy" - for exynos5420 SoC.
>> +- reg : Register offset and length of USB DRD PHY register set;
>> +- clocks: Clock IDs array as required by the controller
>> +- clock-names: names of clocks correseponding to IDs in the clock property;
>> + Required clocks:
>> + - phy: main PHY clock (same as USB DRD controller i.e. DWC3 IP clock),
>> + used for register access.
>> + - ref: PHY's reference clock (usually crystal clock), associated by
>> + phy name, used to determine bit values for clock settings
>> + register.
>> + Additional clock required for Exynos5420:
>> + - usb30_sclk_100m: Additional special clock used for PHY operation
>> + depicted as 'sclk_usbphy30' in CMU of Exynos5420.
>> +- samsung,syscon-phandle: phandle for syscon interface, which is used to
>> + control pmu registers for power isolation.
>
> Why to append "-phandle" to the property's name ? If this is for PMU
> perhaps make it more explicit and name it: samsung,pmu-syscon or
> samsung,pmureg ?
>
There are already a couple of nodes (watchdog and sata) using
samsung,syscon-phandle. IMHO, we should keep only property string for
syscon node. Either we keep syscon-phandle here or change sata/watchdog
driver to use the modified property name.
--
Tushar Behera
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