[PATCH V4 1/5] phy: Add new Exynos5 USB 3.0 PHY driver

Vivek Gautam gautam.vivek at samsung.com
Mon Apr 14 22:09:24 PDT 2014


Hi,


On Mon, Apr 14, 2014 at 8:07 PM, Sylwester Nawrocki
<s.nawrocki at samsung.com> 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 at 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 ?

Right, thanks for pointing out this.
Will rename it to samsung,pmu-syscon. That will be inline with the
phandle it points to.



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