[PATCH 1/2] ARM: tegra: add Acer Chromebook 13 device tree

[Andrew Bresticker]

On Wed, Aug 13, 2014 at 9:51 AM, Stephen Warren <swarren at wwwdotorg.org> wrote:
> On 08/13/2014 02:53 AM, Thierry Reding wrote:
>>
>> On Tue, Aug 12, 2014 at 06:56:07PM -0700, Dylan Reid wrote:
>>>
>>> The Acer Chromebook 13, codenamed "Big", contains an NVIDIA tegra124
>>> processor and is similar to the Venice2 reference platform.
>>>
>>> The keyboard, USB 2, audio, HDMI, sdcard and emmc have been tested
>>> and work on the 1366x768 models.  I haven't tried on the HD systems
>>> yet.
>>
>>
>> Presumably the HD systems will have a different compatible? Is it only
>> the panel that's different or are there other changes?
>
>
> Yes, we definitely need to plan ahead for the different SKUs. I assume we'll
> have different board names for each board, which then translates int DT
> filenames and U-Boot/cbootimage-configs/tegra-uboot-flasher board

The firmware does not differentiate between the HD and non-HD boards,
so it will look for the same compatible string.  As I mentioned in my
response to Thierry, we'd need to parse the EDID to figure out which
panel is being used.

>>> +       compatible = "google,nyan-big", "nvidia,tegra124";
>>
>>
>> What's "nyan"? Are there other variants of "big" other than "nyan"?
>
>
> I thought this board was known as Nike?

Nike is Acer's name for the board.  We call Tegra124-based boards
Nyan-${variant}.