[Intel-gfx] [PATCH 02/13] drm/i915/skl: Make sure to break when not finding suitable PLL dividers

[Jani Nikula]

On Wed, 27 May 2015, Paulo Zanoni <przanoni at gmail.com> wrote:
> 2015-05-07 14:38 GMT-03:00 Damien Lespiau <damien.lespiau at intel.com>:
>> Right now, when finishing the cycle with odd dividers without finding a
>> suitable candidate, we end up in an infinite loop. Make sure to break in
>> that case.
>
> Cc stable?

No, fixes for platforms that require the preliminary_hw_support flag are
neither for stable nor the current development kernel.

BR,
Jani.


>
> Reviewed-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
>
>>
>> Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
>> ---
>>  drivers/gpu/drm/i915/intel_ddi.c | 4 ++++
>>  1 file changed, 4 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
>> index 2e24fa4..da7aa0f 100644
>> --- a/drivers/gpu/drm/i915/intel_ddi.c
>> +++ b/drivers/gpu/drm/i915/intel_ddi.c
>> @@ -1180,6 +1180,10 @@ found:
>>                 }
>>
>>                 if (min_dco_index > 2 && dco_count == 2) {
>> +                        /* oh well, we tried... */
>> +                        if (retry_with_odd)
>> +                                break;
>> +
>>                         retry_with_odd = true;
>>                         dco_count = 0;
>>                 }
>> --
>> 2.1.0
>>
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
>
>
> -- 
> Paulo Zanoni
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Jani Nikula, Intel Open Source Technology Center