[Intel-gfx] [PATCH 1/4] drm: Add missing DP DSC extended capability definitions.

Stanislav Lisovskiy
2022-08-29T09:58:00Z

Adding DP DSC register definitions, we might need for further
DSC implementation, supporting MST and DP branch pass-through mode.

v2: - Fixed checkpatch comment warning
v3: - Removed function which is not yet used(Jani Nikula)

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>

Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
---
include/drm/display/drm_dp.h | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 9e3aff7e68bb..0d05e3172f96 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -239,6 +239,9 @@

#define DP_DSC_SUPPORT 0x060 /* DP 1.4 */
# define DP_DSC_DECOMPRESSION_IS_SUPPORTED (1 << 0)
+# define DP_DSC_PASS_THROUGH_IS_SUPPORTED (1 << 1)
+# define DP_DSC_DYNAMIC_PPS_UPDATE_SUPPORT_COMP_TO_COMP (1 << 2)
+# define DP_DSC_DYNAMIC_PPS_UPDATE_SUPPORT_UNCOMP_TO_COMP (1 << 3)

#define DP_DSC_REV 0x061
# define DP_DSC_MAJOR_MASK (0xf << 0)
@@ -277,12 +280,15 @@

#define DP_DSC_BLK_PREDICTION_SUPPORT 0x066
# define DP_DSC_BLK_PREDICTION_IS_SUPPORTED (1 << 0)
+# define DP_DSC_RGB_COLOR_CONV_BYPASS_SUPPORT (1 << 1)

#define DP_DSC_MAX_BITS_PER_PIXEL_LOW 0x067 /* eDP 1.4 */

#define DP_DSC_MAX_BITS_PER_PIXEL_HI 0x068 /* eDP 1.4 */
# define DP_DSC_MAX_BITS_PER_PIXEL_HI_MASK (0x3 << 0)
# define DP_DSC_MAX_BITS_PER_PIXEL_HI_SHIFT 8
+# define DP_DSC_MAX_BPP_DELTA_VERSION_MASK 0x06
+# define DP_DSC_MAX_BPP_DELTA_AVAILABILITY 0x08

#define DP_DSC_DEC_COLOR_FORMAT_CAP 0x069
# define DP_DSC_RGB (1 << 0)
@@ -344,11 +350,13 @@
# define DP_DSC_24_PER_DP_DSC_SINK (1 << 2)

#define DP_DSC_BITS_PER_PIXEL_INC 0x06F
+# define DP_DSC_RGB_YCbCr444_MAX_BPP_DELTA_MASK 0x1f
+# define DP_DSC_RGB_YCbCr420_MAX_BPP_DELTA_MASK 0xe0
# define DP_DSC_BITS_PER_PIXEL_1_16 0x0
# define DP_DSC_BITS_PER_PIXEL_1_8 0x1
# define DP_DSC_BITS_PER_PIXEL_1_4 0x2
# define DP_DSC_BITS_PER_PIXEL_1_2 0x3
-# define DP_DSC_BITS_PER_PIXEL_1 0x4
+# define DP_DSC_BITS_PER_PIXEL_1_1 0x4

#define DP_PSR_SUPPORT 0x070 /* XXX 1.2? */
# define DP_PSR_IS_SUPPORTED 1
--
2.24.1.485.gad05a3d8e5