[Intel-gfx] [PATCH] drm/i915/psr: disable psr2 for resolution greater than 32X20

[Jani Nikula]

On Fri, 26 May 2017, Rodrigo Vivi <rodrigo.vivi at gmail.com> wrote:
> I believe we need to cc:stable on this right?!
>
> Jani, is this ok to go ahead and merge after stable is cc'ed?

Please add this, and it'll all happen automagically.

Fixes: acf45d11050a ("drm/i915/psr: disable psr2 for resolution greater than 32X20")
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Jim Bride <jim.bride at linux.intel.com>
Cc: Vathsala Nagaraju <vathsala.nagaraju at intel.com>
Cc: Daniel Vetter <daniel.vetter at intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Cc: intel-gfx at lists.freedesktop.org
Cc: <stable at vger.kernel.org> # v4.11+

BR,
Jani.


>
> On Thu, May 25, 2017 at 9:43 AM, vathsala nagaraju
> <vathsala.nagaraju at intel.com> wrote:
>> psr1 is also disabled for panel resolution  greater than 32X20.
>> Added psr2 check to disable only for psr2 panels having resolution
>> greater than 32X20.
>>
>> issue was introduced by
>> commit-id : "acf45d11050abd751dcec986ab121cb2367dcbba"
>> commit message: "PSR2 is restricted to work with panel resolutions
>> upto 3200x2000, move the check to intel_psr_match_conditions and fully
>> block psr."
>>
>> v2: (Rodrigo)
>>    Add previous commit details which introduced the issue
>>
>> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
>> Cc: Jim Bride <jim.bride at linux.intel.com>
>> Cc: Yaroslav Shabalin <yaroslav.shabalin at gmail.com>
>> Reported-by: Yaroslav Shabalin <yaroslav.shabalin at gmail.com>
>> Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
>> Signed-off-by: vathsala nagaraju <vathsala.nagaraju at intel.com>
>> ---
>>  drivers/gpu/drm/i915/intel_psr.c | 5 +++--
>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c
>> index c3780d0..559f1ab 100644
>> --- a/drivers/gpu/drm/i915/intel_psr.c
>> +++ b/drivers/gpu/drm/i915/intel_psr.c
>> @@ -435,8 +435,9 @@ static bool intel_psr_match_conditions(struct intel_dp *intel_dp)
>>         }
>>
>>         /* PSR2 is restricted to work with panel resolutions upto 3200x2000 */
>> -       if (intel_crtc->config->pipe_src_w > 3200 ||
>> -                               intel_crtc->config->pipe_src_h > 2000) {
>> +       if (dev_priv->psr.psr2_support &&
>> +           (intel_crtc->config->pipe_src_w > 3200 ||
>> +            intel_crtc->config->pipe_src_h > 2000)) {
>>                 dev_priv->psr.psr2_support = false;
>>                 return false;
>>         }
>> --
>> 1.9.1
>>
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Jani Nikula, Intel Open Source Technology Center