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Commit a572eaa3 authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
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drm/radeon/kms: DCE5 atom spread spectrum updates 



Signed-off-by: default avatarAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent f82b3ddc

drivers/gpu/drm/radeon/atombios_crtc.c

+25 −1
Original line number Diff line number Diff line
@@ -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) {