New PLL scheme on ELM/BAF.
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Jammy Zhou <Jammy.Zhou@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index cf6d87b50..b9fb44c 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -2384,6 +2384,18 @@ 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)) {
+ 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;
+
+ return ATOM_COMBOPHY_PLL0 + amdgpu_crtc->crtc_id;
+ }
+
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 */
--
2.5.0
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
