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drm/amdgpu/atom: add support for new SetPixelClock table
New version of the SetPixelClock table for elm/baf. The new table calculates the pll dividers and handles spread spectrum calculations and setup. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
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parent
541cd55557
commit
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1 changed files with 41 additions and 12 deletions
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@ -461,6 +461,7 @@ union set_pixel_clock {
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PIXEL_CLOCK_PARAMETERS_V3 v3;
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PIXEL_CLOCK_PARAMETERS_V5 v5;
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PIXEL_CLOCK_PARAMETERS_V6 v6;
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PIXEL_CLOCK_PARAMETERS_V7 v7;
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};
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/* on DCE5, make sure the voltage is high enough to support the
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@ -566,18 +567,18 @@ static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id)
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}
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void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
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u32 crtc_id,
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int pll_id,
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u32 encoder_mode,
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u32 encoder_id,
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u32 clock,
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u32 ref_div,
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u32 fb_div,
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u32 frac_fb_div,
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u32 post_div,
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int bpc,
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bool ss_enabled,
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struct amdgpu_atom_ss *ss)
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u32 crtc_id,
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int pll_id,
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u32 encoder_mode,
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u32 encoder_id,
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u32 clock,
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u32 ref_div,
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u32 fb_div,
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u32 frac_fb_div,
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u32 post_div,
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int bpc,
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bool ss_enabled,
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struct amdgpu_atom_ss *ss)
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{
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struct drm_device *dev = crtc->dev;
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struct amdgpu_device *adev = dev->dev_private;
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@ -695,6 +696,34 @@ void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
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args.v6.ucEncoderMode = encoder_mode;
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args.v6.ucPpll = pll_id;
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break;
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case 7:
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args.v7.ulPixelClock = cpu_to_le32(clock * 10); /* 100 hz units */
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args.v7.ucMiscInfo = 0;
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if ((encoder_mode == ATOM_ENCODER_MODE_DVI) &&
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(clock > 165000))
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args.v7.ucMiscInfo |= PIXEL_CLOCK_V7_MISC_DVI_DUALLINK_EN;
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args.v7.ucCRTC = crtc_id;
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if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
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switch (bpc) {
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case 8:
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default:
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args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_DIS;
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break;
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case 10:
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args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_5_4;
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break;
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case 12:
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args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_3_2;
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break;
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case 16:
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args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_2_1;
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break;
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}
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}
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args.v7.ucTransmitterID = encoder_id;
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args.v7.ucEncoderMode = encoder_mode;
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args.v7.ucPpll = pll_id;
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break;
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default:
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DRM_ERROR("Unknown table version %d %d\n", frev, crev);
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return;
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