drm/radeon/kms: DCE5 atom spread spectrum updates
Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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1 changed files with 25 additions and 1 deletions
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@ -403,6 +403,7 @@ union atom_enable_ss {
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ENABLE_LVDS_SS_PARAMETERS_V2 lvds_ss_2;
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ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1;
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ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2;
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ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3;
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};
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static void atombios_crtc_program_ss(struct drm_crtc *crtc,
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@ -417,7 +418,30 @@ static void atombios_crtc_program_ss(struct drm_crtc *crtc,
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memset(&args, 0, sizeof(args));
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if (ASIC_IS_DCE4(rdev)) {
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if (ASIC_IS_DCE5(rdev)) {
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args.v3.usSpreadSpectrumAmountFrac = 0;
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args.v3.ucSpreadSpectrumType = ss->type;
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switch (pll_id) {
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case ATOM_PPLL1:
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args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL;
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args.v3.usSpreadSpectrumAmount = ss->amount;
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args.v3.usSpreadSpectrumStep = ss->step;
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break;
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case ATOM_PPLL2:
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args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL;
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args.v3.usSpreadSpectrumAmount = ss->amount;
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args.v3.usSpreadSpectrumStep = ss->step;
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break;
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case ATOM_DCPLL:
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args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL;
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args.v3.usSpreadSpectrumAmount = 0;
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args.v3.usSpreadSpectrumStep = 0;
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break;
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case ATOM_PPLL_INVALID:
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return;
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}
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args.v2.ucEnable = enable;
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} else if (ASIC_IS_DCE4(rdev)) {
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args.v2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
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args.v2.ucSpreadSpectrumType = ss->type;
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switch (pll_id) {
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