New PLL scheme on ELM/BAF.
v2: squash in pll fix. Plls are part of the phys.
Reviewed-by: Christian König <christian.koenig at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Reviewed-by: Jammy Zhou <Jammy.Zhou at amd.com>
---
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 38 ++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index 613cc98..d1a0a55 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -2385,6 +2385,44 @@ static u32 dce_v11_0_pick_pll(struct drm_crtc *crtc)
u32 pll_in_use;
int pll;
+ if ((adev->asic_type == CHIP_ELLESMERE) ||
+ (adev->asic_type == CHIP_BAFFIN)) {
+ struct amdgpu_encoder *amdgpu_encoder =
+ to_amdgpu_encoder(amdgpu_crtc->encoder);
+ struct amdgpu_encoder_atom_dig *dig = amdgpu_encoder->enc_priv;
+
+ if
(ENCODER_MODE_IS_DP(amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder)))
+ return ATOM_DP_DTO;
+ /* use the same PPLL for all monitors with the same clock */
+ pll = amdgpu_pll_get_shared_nondp_ppll(crtc);
+ if (pll != ATOM_PPLL_INVALID)
+ return pll;
+
+ switch (amdgpu_encoder->encoder_id) {
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY:
+ if (dig->linkb)
+ return ATOM_COMBOPHY_PLL1;
+ else
+ return ATOM_COMBOPHY_PLL0;
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY1:
+ if (dig->linkb)
+ return ATOM_COMBOPHY_PLL3;
+ else
+ return ATOM_COMBOPHY_PLL2;
+ break;
+ case ENCODER_OBJECT_ID_INTERNAL_UNIPHY2:
+ if (dig->linkb)
+ return ATOM_COMBOPHY_PLL5;
+ else
+ return ATOM_COMBOPHY_PLL4;
+ break;
+ default:
+ DRM_ERROR("invalid encoder_id: 0x%x\n",
amdgpu_encoder->encoder_id);
+ return ATOM_PPLL_INVALID;
+ }
+ }
+
if
(ENCODER_MODE_IS_DP(amdgpu_atombios_encoder_get_encoder_mode(amdgpu_crtc->encoder)))
{
if (adev->clock.dp_extclk)
/* skip PPLL programming if using ext clock */
--
2.5.5
