From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 15 Oct 2015 06:05:31 +0000 (-0400)
Subject: drm/amdgpu/atom: add support for new SetPixelClock table
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=ee681c9aa21dea6729871cc55ff1514f2185600b;p=openwrt%2Fstaging%2Fblogic.git

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 bd6c530bdf7e..49a39b1a0a96 100644
--- 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;