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authorAlex Deucher <alexander.deucher@amd.com>2012-03-20 17:18:32 -0400
committerDave Airlie <airlied@redhat.com>2012-03-21 06:55:56 +0000
commit24e1f7947b1b93e77a60c8a88cf46ee5ae8f258a (patch)
treeb9a65d83f71fde47403db6750a6ec672eab8c2bb
parent729b95ef03fbfc1b0587eedbcfbaf0cb6d27be93 (diff)
downloadop-kernel-dev-24e1f7947b1b93e77a60c8a88cf46ee5ae8f258a.zip
op-kernel-dev-24e1f7947b1b93e77a60c8a88cf46ee5ae8f258a.tar.gz
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>
-rw-r--r--drivers/gpu/drm/radeon/atombios_crtc.c31
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 224775b..92263af 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,
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