Re: [PATCH] drm/i915: Add a DRM property "psr"

Siva Chandra
2014-03-18T20:53:57Z

On Tue, Mar 18, 2014 at 1:06 PM, Jesse Barnes <jbarnes@virtuousgeek.org> wrote:
> On Tue, 18 Mar 2014 12:51:07 -0700
> Siva Chandra <sivachandra@chromium.org> wrote:
>
>> This property helps one turn PSR "on" and "off" via xrandr.
>> The default value is same as that of the module param i915.enable_psr.
>>
>> Signed-off-by: Siva Chandra <sivachandra@google.com>
>> ---
>
> So are you using this in Chromium for disabling PSR in cases where it
> doesn't work? Or to optimize power consumption when the kernel driver
> gets it wrong? Or just for debug?

We are testing a few PSR panels; Having a knob to turn PSR on and off
would be of great convenience for manual testing and for test scripts.

Thanks,
Siva Chandra