drm/radeon/kms: DCE5 atom spread spectrum updates

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 25 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index b3e5e7549008..b0ab185b86f6 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -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) {