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>

diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c b/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c
index bd6c530..49a39b1 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c
+++ b/drivers/gpu/drm/amd/amdgpu/atombios_crtc.c
@@ -461,6 +461,7 @@ union set_pixel_clock {
        PIXEL_CLOCK_PARAMETERS_V3 v3;
        PIXEL_CLOCK_PARAMETERS_V5 v5;
        PIXEL_CLOCK_PARAMETERS_V6 v6;
+       PIXEL_CLOCK_PARAMETERS_V7 v7;
 };
 
 /* on DCE5, make sure the voltage is high enough to support the
@@ -566,18 +567,18 @@ static bool is_pixel_clock_source_from_pll(u32 encoder_mode, int pll_id)
 }
 
 void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
-                              u32 crtc_id,
-                              int pll_id,
-                              u32 encoder_mode,
-                              u32 encoder_id,
-                              u32 clock,
-                              u32 ref_div,
-                              u32 fb_div,
-                              u32 frac_fb_div,
-                              u32 post_div,
-                              int bpc,
-                              bool ss_enabled,
-                              struct amdgpu_atom_ss *ss)
+                                     u32 crtc_id,
+                                     int pll_id,
+                                     u32 encoder_mode,
+                                     u32 encoder_id,
+                                     u32 clock,
+                                     u32 ref_div,
+                                     u32 fb_div,
+                                     u32 frac_fb_div,
+                                     u32 post_div,
+                                     int bpc,
+                                     bool ss_enabled,
+                                     struct amdgpu_atom_ss *ss)
 {
        struct drm_device *dev = crtc->dev;
        struct amdgpu_device *adev = dev->dev_private;
@@ -695,6 +696,34 @@ void amdgpu_atombios_crtc_program_pll(struct drm_crtc *crtc,
                        args.v6.ucEncoderMode = encoder_mode;
                        args.v6.ucPpll = pll_id;
                        break;
+               case 7:
+                       args.v7.ulPixelClock = cpu_to_le32(clock * 10); /* 100 hz units */
+                       args.v7.ucMiscInfo = 0;
+                       if ((encoder_mode == ATOM_ENCODER_MODE_DVI) &&
+                           (clock > 165000))
+                               args.v7.ucMiscInfo |= PIXEL_CLOCK_V7_MISC_DVI_DUALLINK_EN;
+                       args.v7.ucCRTC = crtc_id;
+                       if (encoder_mode == ATOM_ENCODER_MODE_HDMI) {
+                               switch (bpc) {
+                               case 8:
+                               default:
+                                       args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_DIS;
+                                       break;
+                               case 10:
+                                       args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_5_4;
+                                       break;
+                               case 12:
+                                       args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_3_2;
+                                       break;
+                               case 16:
+                                       args.v7.ucDeepColorRatio = PIXEL_CLOCK_V7_DEEPCOLOR_RATIO_2_1;
+                                       break;
+                               }
+                       }
+                       args.v7.ucTransmitterID = encoder_id;
+                       args.v7.ucEncoderMode = encoder_mode;
+                       args.v7.ucPpll = pll_id;
+                       break;
                default:
                        DRM_ERROR("Unknown table version %d %d\n", frev, crev);
                        return;