[PATCH] drm/radeon: only apply the SS fractional workaround to RS[78]80

[Christian König]

Am 18.08.2016 um 17:18 schrieb Alex Deucher:
> On Thu, Aug 18, 2016 at 9:40 AM, Deucher, Alexander
> <Alexander.Deucher at amd.com> wrote:
>>> -----Original Message-----
>>> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
>>> Of Christian König
>>> Sent: Thursday, August 18, 2016 5:51 AM
>>> To: amd-gfx at lists.freedesktop.org
>>> Cc: Deucher, Alexander
>>> Subject: [PATCH] drm/radeon: only apply the SS fractional workaround to
>>> RS[78]80
>>>
>>> From: Christian König <christian.koenig at amd.com>
>>>
>>> Looks like some RV6xx have problems with that.
>>>
>>> Signed-off-by: Christian König <christian.koenig at amd.com>
>> Please mention the bugzilla in the patch.  With that included:
>> Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
> Fixed up and applied.

Have you seen my follow up mail? E.g. did you added CC:stable as well?

Christian.

>
> Alex
>
>>> ---
>>>   drivers/gpu/drm/radeon/atombios_crtc.c | 4 +++-
>>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c
>>> b/drivers/gpu/drm/radeon/atombios_crtc.c
>>> index a97abc8..1dcf390 100644
>>> --- a/drivers/gpu/drm/radeon/atombios_crtc.c
>>> +++ b/drivers/gpu/drm/radeon/atombios_crtc.c
>>> @@ -627,7 +627,9 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
>>>                        if (radeon_crtc->ss.refdiv) {
>>>                                radeon_crtc->pll_flags |=
>>> RADEON_PLL_USE_REF_DIV;
>>>                                radeon_crtc->pll_reference_div =
>>> radeon_crtc->ss.refdiv;
>>> -                             if (rdev->family >= CHIP_RV770)
>>> +                             if (ASIC_IS_AVIVO(rdev) &&
>>> +                                 rdev->family != CHIP_RS780 &&
>>> +                                 rdev->family != CHIP_RS880)
>>>                                        radeon_crtc->pll_flags |=
>>> RADEON_PLL_USE_FRAC_FB_DIV;
>>>                        }
>>>                }
>>> --
>>> 2.5.0
>>>
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