diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/dce_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c index 613cc98d7961..d1a0a55af4a2 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 */ |