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drm/radeon/kms: disable PPLL0 on DCE6.1 when not in use 

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-03-20 17:18:33 -04:00 committed by Dave Airlie
parent 24e1f7947b
commit 641998701b
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/radeon/atombios_crtc.c
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@ -1646,6 +1646,8 @@ static void atombios_crtc_commit(struct drm_crtc *crtc)
static void atombios_crtc_disable(struct drm_crtc *crtc)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
struct drm_device *dev = crtc->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_atom_ss ss;
atombios_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
@ -1657,6 +1659,12 @@ static void atombios_crtc_disable(struct drm_crtc *crtc)
atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
break;
case ATOM_PPLL0:
/* disable the ppll */
if (ASIC_IS_DCE61(rdev))
atombios_crtc_program_pll(crtc, radeon_crtc->crtc_id, radeon_crtc->pll_id,
0, 0, ATOM_DISABLE, 0, 0, 0, 0, 0, false, &ss);
break;
default:
break;
}