drm/dp: Add Additional DP2 Headers

Include FEC, DSC, Link Training related headers.

Change since v2
- Align with the spec for DP_DSC_SUPPORT_AND_DSC_DECODER_COUNT

Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210927192324.5428-1-Jerry.Zuo@amd.com

include/drm/drm_dp_helper.h

@@ -453,6 +453,7 @@ struct drm_panel;
 # define DP_FEC_UNCORR_BLK_ERROR_COUNT_CAP  (1 << 1)
 # define DP_FEC_CORR_BLK_ERROR_COUNT_CAP    (1 << 2)
 # define DP_FEC_BIT_ERROR_COUNT_CAP	    (1 << 3)
+#define DP_FEC_CAPABILITY_1			0x091   /* 2.0 */
 
 /* DP-HDMI2.1 PCON DSC ENCODER SUPPORT */
 #define DP_PCON_DSC_ENCODER_CAP_SIZE        0xC	/* 0x9E - 0x92 */
@@ -537,6 +538,9 @@ struct drm_panel;
 #define DP_DSC_BRANCH_OVERALL_THROUGHPUT_1  0x0a1
 #define DP_DSC_BRANCH_MAX_LINE_WIDTH        0x0a2
 
+/* DFP Capability Extension */
+#define DP_DFP_CAPABILITY_EXTENSION_SUPPORT	0x0a3	/* 2.0 */
+
 /* Link Configuration */
 #define	DP_LINK_BW_SET		            0x100
 # define DP_LINK_RATE_TABLE		    0x00    /* eDP 1.4 */
@@ -688,6 +692,7 @@ struct drm_panel;
 
 #define DP_DSC_ENABLE                       0x160   /* DP 1.4 */
 # define DP_DECOMPRESSION_EN                (1 << 0)
+#define DP_DSC_CONFIGURATION				0x161	/* DP 2.0 */
 
 #define DP_PSR_EN_CFG				0x170   /* XXX 1.2? */
 # define DP_PSR_ENABLE				BIT(0)
@@ -743,6 +748,7 @@ struct drm_panel;
 # define DP_RECEIVE_PORT_0_STATUS	    (1 << 0)
 # define DP_RECEIVE_PORT_1_STATUS	    (1 << 1)
 # define DP_STREAM_REGENERATION_STATUS      (1 << 2) /* 2.0 */
+# define DP_INTRA_HOP_AUX_REPLY_INDICATION	(1 << 3) /* 2.0 */
 
 #define DP_ADJUST_REQUEST_LANE0_1	    0x206
 #define DP_ADJUST_REQUEST_LANE2_3	    0x207
@@ -865,6 +871,8 @@ struct drm_panel;
 # define DP_PHY_TEST_PATTERN_80BIT_CUSTOM   0x4
 # define DP_PHY_TEST_PATTERN_CP2520         0x5
 
+#define DP_PHY_SQUARE_PATTERN				0x249
+
 #define DP_TEST_HBR2_SCRAMBLER_RESET        0x24A
 #define DP_TEST_80BIT_CUSTOM_PATTERN_7_0    0x250
 #define	DP_TEST_80BIT_CUSTOM_PATTERN_15_8   0x251
@@ -1109,6 +1117,18 @@ struct drm_panel;
 #define DP_128B132B_TRAINING_AUX_RD_INTERVAL   0x2216 /* 2.0 */
 # define DP_128B132B_TRAINING_AUX_RD_INTERVAL_MASK 0x7f
 
+#define DP_TEST_264BIT_CUSTOM_PATTERN_7_0		0x2230
+#define DP_TEST_264BIT_CUSTOM_PATTERN_263_256	0x2250
+
+/* DSC Extended Capability Branch Total DSC Resources */
+#define DP_DSC_SUPPORT_AND_DSC_DECODER_COUNT		0x2260	/* 2.0 */
+# define DP_DSC_DECODER_COUNT_MASK			(0b111 << 5)
+# define DP_DSC_DECODER_COUNT_SHIFT			5
+#define DP_DSC_MAX_SLICE_COUNT_AND_AGGREGATION_0	0x2270	/* 2.0 */
+# define DP_DSC_DECODER_0_MAXIMUM_SLICE_COUNT_MASK	(1 << 0)
+# define DP_DSC_DECODER_0_AGGREGATION_SUPPORT_MASK	(0b111 << 1)
+# define DP_DSC_DECODER_0_AGGREGATION_SUPPORT_SHIFT	1
+
 /* Protocol Converter Extension */
 /* HDMI CEC tunneling over AUX DP 1.3 section 5.3.3.3.1 DPCD 1.4+ */
 #define DP_CEC_TUNNELING_CAPABILITY            0x3000