Re: [PATCH v4 4/4] ARM: dts: Add exynos5250-spring device tree

[Andreas FÃrber]

Am 02.08.2014 07:15, schrieb Doug Anderson:
> On Thu, Jul 31, 2014 at 12:40 PM, Tomasz Figa <tomasz.figa@xxxxxxxxx> wrote:
>> On 31.07.2014 21:20, Andreas FÃrber wrote:
>>> Am 31.07.2014 21:05, schrieb Tomasz Figa:
>>>> On 31.07.2014 18:08, Andreas FÃrber wrote:
>>>>> +&sd1_clk {
>>>>> +   samsung,pin-drv = <0>;
>>>>> +};
>>>>> +
>>>>> +&sd1_cmd {
>>>>> +   samsung,pin-pud = <3>;
>>>>> +   samsung,pin-drv = <0>;
>>>>> +};
>>>>> +
>>>>> +&sd1_cd {
>>>>> +   samsung,pin-drv = <0>;
>>>>> +};
>>>>> +
>>>>> +&sd1_bus4 {
>>>>> +   samsung,pin-drv = <0>;
>>>>> +};
>>>>
>>>> Here generic settings are being overridden, so it might be a good idea
>>>> to explain why, like with i2c pull-up above.
>>>
>>> Snow does not have an explanation either, so please suggest what comment
>>> you'd like to see. Consider me just a user with no specs. :)
>>
>> Doug, Vincent, someone else?
> 
> The comment is just in a different place--it's in the dw_mmc node.
> Probably belongs here, though:
> 
>                 /*
>                  * Wifi is a SiP, so can keep drive strengths low
>                  * to reduce EMI.
>                  */
> 

I did copy such a comment for the MMC node in v5, still present in v6.

Andreas

> I guess the cmd line isn't documented.  There is no external pull on
> the command line and on most boards there is one.  Our hardware guys
> thought we didn't need it and apparently we don't...

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