提交 a572eaa3 编写于 作者: A Alex Deucher 提交者: Dave Airlie

drm/radeon/kms: DCE5 atom spread spectrum updates

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
上级 f82b3ddc
......@@ -403,6 +403,7 @@ union atom_enable_ss {
ENABLE_LVDS_SS_PARAMETERS_V2 lvds_ss_2;
ENABLE_SPREAD_SPECTRUM_ON_PPLL_PS_ALLOCATION v1;
ENABLE_SPREAD_SPECTRUM_ON_PPLL_V2 v2;
ENABLE_SPREAD_SPECTRUM_ON_PPLL_V3 v3;
};
static void atombios_crtc_program_ss(struct drm_crtc *crtc,
......@@ -417,7 +418,30 @@ static void atombios_crtc_program_ss(struct drm_crtc *crtc,
memset(&args, 0, sizeof(args));
if (ASIC_IS_DCE4(rdev)) {
if (ASIC_IS_DCE5(rdev)) {
args.v3.usSpreadSpectrumAmountFrac = 0;
args.v3.ucSpreadSpectrumType = ss->type;
switch (pll_id) {
case ATOM_PPLL1:
args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P1PLL;
args.v3.usSpreadSpectrumAmount = ss->amount;
args.v3.usSpreadSpectrumStep = ss->step;
break;
case ATOM_PPLL2:
args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_P2PLL;
args.v3.usSpreadSpectrumAmount = ss->amount;
args.v3.usSpreadSpectrumStep = ss->step;
break;
case ATOM_DCPLL:
args.v3.ucSpreadSpectrumType |= ATOM_PPLL_SS_TYPE_V3_DCPLL;
args.v3.usSpreadSpectrumAmount = 0;
args.v3.usSpreadSpectrumStep = 0;
break;
case ATOM_PPLL_INVALID:
return;
}
args.v2.ucEnable = enable;
} else if (ASIC_IS_DCE4(rdev)) {
args.v2.usSpreadSpectrumPercentage = cpu_to_le16(ss->percentage);
args.v2.ucSpreadSpectrumType = ss->type;
switch (pll_id) {
......
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