Re: [PATCH] OMAPDSS: Check if RPM enabled before trying to change state

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On Mon, Jun 25, 2012 at 9:20 AM, Tomi Valkeinen <tomi.valkeinen@xxxxxx> wrote:
> On Sat, 2012-06-23 at 13:36 +0530, jaswinder.singh@xxxxxxxxxx wrote:
>>
>>  Currenlty HDMI fails to come up in the suspend-resume path.
>> This patch helps that real-world scenario.
>
> What is the problem there? It'd be good to explain the problem in the
> patch description. Does the pm_runtime_get return -EACCES?

On slightly different but related issue, currently OMAPDSS always
spits lots of backtraces when it's compiled without CONFIG_PM_RUNTIME,
because pm_runtime_put* always return -ENOSYS without
CONFIG_PM_RUNTIME. So something like this patch proposes is needed, or
maybe WARN_ON should check for -ENOSYS, I don't know..


-- 
Gražvydas
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