[PATCH v2 0/7] drm/exynos: add pm runtime support

Javier Martinez Canillas javier at osg.samsung.com
Thu Nov 19 06:51:53 PST 2015


[adding Kevin and Tyler to cc list]

Hello Inki and Gustavo,

On 11/03/2015 07:47 AM, Inki Dae wrote:
> This patch series adds pm runtime support for Exynos drm.
> 
> Originally, this patch was posted by Gustavo but there was no any
> answer about some comments. So I rebased this patch series on top of
> exynos-drm-next, removed unnecessary patches and modified wrong macro.
> 
> Changelog v2:
> - Remove patch 5 and 6.
>   . commit callback are already removed so isn't required anymore.
> - Remove patch 8 which makes dp clock enabled directly from FIMD.
>   . Really not mendatory for FIMD uses DP, and it could be different
>     according to Board.
> - Modified CONFIG_PM_SLEEP to CONFIG_PM.
>   . In case of runtime pm, CONFIG_PM macro should be used instead of
>     CONFIG_PM_SLEEP.
>

This series causes a boot failure on at least an Exynos5800 Peach Pi
Chromebook (tested myself) and seems to be the cause of other Exynos
boards failing to boot: http://kernelci.org/boot/?exynos&fail

[snip]

>   drm/exynos: add pm_runtime to Mixer
>   drm/exynos: add pm_runtime to FIMD

I had to revert these patches in order to get the machine in a bootable
state again, the sha1 hash for these patches in next-20151119 are:

045febd5f813 drm/exynos: add pm_runtime to FIMD
dd766fb8479b drm/exynos: add pm_runtime to Mixer

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America


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