diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2012-03-20 22:18:32 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-03-21 07:55:56 +0100 |
| commit | 24e1f7947b1b93e77a60c8a88cf46ee5ae8f258a (patch) | |
| tree | b9a65d83f71fde47403db6750a6ec672eab8c2bb /drivers/gpu | |
| parent | drm/radeon/kms: DCE6.1 disp eng pll updates (diff) | |
| download | linux-24e1f7947b1b93e77a60c8a88cf46ee5ae8f258a.tar.xz linux-24e1f7947b1b93e77a60c8a88cf46ee5ae8f258a.zip | |
drm/radeon/kms: Adjust pll picker for DCE6.1
On TN, UNIPHYA always uses PPLL2, UNIPHYB/C/D/E/F
can use either PPLL1 or PPLL0.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_crtc.c | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 224775beb478..92263af38f56 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -1487,7 +1487,36 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc) struct drm_crtc *test_crtc; uint32_t pll_in_use = 0; - if (ASIC_IS_DCE4(rdev)) { + if (ASIC_IS_DCE61(rdev)) { + list_for_each_entry(test_encoder, &dev->mode_config.encoder_list, head) { + if (test_encoder->crtc && (test_encoder->crtc == crtc)) { + struct radeon_encoder *test_radeon_encoder = + to_radeon_encoder(test_encoder); + struct radeon_encoder_atom_dig *dig = + test_radeon_encoder->enc_priv; + + if ((test_radeon_encoder->encoder_id == + ENCODER_OBJECT_ID_INTERNAL_UNIPHY) && + (dig->linkb == false)) /* UNIPHY A uses PPLL2 */ + return ATOM_PPLL2; + } + } + /* UNIPHY B/C/D/E/F */ + list_for_each_entry(test_crtc, &dev->mode_config.crtc_list, head) { + struct radeon_crtc *radeon_test_crtc; + + if (crtc == test_crtc) + continue; + + radeon_test_crtc = to_radeon_crtc(test_crtc); + if ((radeon_test_crtc->pll_id == ATOM_PPLL0) || + (radeon_test_crtc->pll_id == ATOM_PPLL1)) + pll_in_use |= (1 << radeon_test_crtc->pll_id); + } + if (!(pll_in_use & 4)) + return ATOM_PPLL0; + return ATOM_PPLL1; + } else if (ASIC_IS_DCE4(rdev)) { list_for_each_entry(test_encoder, &dev->mode_config.encoder_list, head) { if (test_encoder->crtc && (test_encoder->crtc == crtc)) { /* in DP mode, the DP ref clock can come from PPLL, DCPLL, or ext clock, |