From 927a81c98eb69d5330c9e42ae9cacdc9d8b96afb Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 15 Oct 2015 15:21:09 -0400 Subject: [PATCH] drm/amdgpu: add ELM/BAF support to dce_v11_0_pick_pll (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit New PLL scheme on ELM/BAF. v2: squash in pll fix. Plls are part of the phys. Reviewed-by: Christian König Signed-off-by: Alex Deucher Reviewed-by: Jammy Zhou --- 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 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 */ -- 2.30.2