Re: drm_do_probe_ddc_edid ENXIO check too aggressive?

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On Wed, Dec 18, 2013 at 5:07 PM, Daniel Drake <drake@xxxxxxxxxxxx> wrote:
> On Wed, Dec 18, 2013 at 2:18 PM, Daniel Drake <drake@xxxxxxxxxxxx> wrote:
>> Yes, this looks very similar to the approach I tried earlier. I guess
>> the patch was written for the same reasons as well.
>> Sean, any objections to me taking your patch and sending it upstream?
>>
>> http://git.chromium.org/gitweb/?p=chromiumos/third_party/kernel-next.git;a=commitdiff;h=77aed71acf4b84e722ead24c820d8ad059121e5b
>
> Seems easier said than done. The patch looks innocent but it touches
> on other stuff that has changed a lot.
>
> For example, it adds cancel_delayed_work_sync() in the hdmi_poweroff()
> path. With my naive backport to vanilla-3.8, hdmi_poweroff() gets
> called within the context of that work item, and a work item trying to
> cancel_delayed_work_sync() on itself hangs. Reproduced just by
> unplugging the display once.
>
> I see that things have changed substantially in the ChromiumOS tree,
> for example this patch probably has some effect:
>
> commit 29ae0c6096395a96a597453271946fc7d8442b6e
> Author: Sean Paul <seanpaul@xxxxxxxxxxxx>
> Date:   Thu Jun 20 17:24:12 2013 -0400
>
>     drm/exynos: Consolidate suspend/resume in drm_drv
>
>
> As this job seems bigger than anticipated and I don't have any Exynos
> hardware that can boot mainline, I think I might have to stop here,
> and hope that ChromiumOS guys upstream all this soon?
>

Hey Daniel,
The set is posted, but I still owe a new version to Tomasz. It's on my
TODO list, I'm hoping to get to it soon.

Sean



> Daniel
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