Am 14.03.2015 um 09:11 schrieb Javier Martinez Canillas:
> By making the DP controller a consumer of DISP1, the PD is powered
> off when the exynos-dp probe is deferred and powered on again when
> the exynos-drm driver is probed.
>
> But this causes the exynos-dp driver failing to obtain the stream
> clock since the FIMD has been powered off with the DISP1 PD:
>
> exynos-dp 145b0000.dp-controller: Timeout of video streamclk ok
> exynos-dp 145b0000.dp-controller: unable to config video
>
> The Exynos5250 documentation doesn't mention that the Display Port
> Transmitter module is included in the DISP1 PD so the device should
> not have a reference to this Power Domain.
>
> This patch fixes video display on an Exynos5250 Snow Chromebook.
>
> Fixes: 2d2c9a8d0a4f ("ARM: dts: add display power domain for exynos5250")
> Signed-off-by: Javier Martinez Canillas <javier.marti...@collabora.co.uk>
> ---
>
> Hello Andrzej and Marek,
>
> I need this patch to have display working on an Snow Chromebook
Tested-by: Andreas Färber <afaer...@suse.de>
This fixes the display on the Spring Chromebook as well!
Thanks,
Andreas
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