[PATCH v3 1/2] video: ARM CLCD: Add DT support

Stephen Warren swarren at wwwdotorg.org
Tue Sep 17 17:34:49 EDT 2013


On 09/17/2013 10:51 AM, Pawel Moll wrote:
> Uh, sorry, missed one...
> 
> On Tue, 2013-09-17 at 17:36 +0100, Pawel Moll wrote:
>> On Mon, 2013-09-16 at 20:52 +0100, Stephen Warren wrote:
>>>> +- arm,pl11x,panel-data-pads: array of 24 cells, each of them describing
>>>> +				a function of one of the CLD pads,
>>>> +				starting from 0 up to 23; each pad can
>>>> +				be described by one of the following values:
>>>> +	- 0: reserved (not connected)
>>>> +	- 0x100-0x107: color upper STN panel data 0 to 7
>>> ...
>>>
>>> I assume those are the raw values that go into the HW?
> 
> No, they can be considered "labels", defining the way pads are used
> (wired). Then, basing on this information, the driver is configuring the
> cell, eg. selecting STN or TFT mode (thus switching the output between
> panel formatter and raw RGB data source).

Oh, why not just use the raw values from the HW registers for this?



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