[PATCH 2/3] drm/dp: Add max bpp delta computation constants

[Nemesa Garg <nemesa.garg@intel.com>]

These constants are used when decoding dsc max delta
values from the sink dpcd. Also add version_1 as suffix
to MAX_DELTA_BPP.

v2: Move constants under 0x6E register. [Ankit]
    Add mask for Native 422 also. [Ankit]

Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
---
 include/drm/display/drm_dp.h | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 520490ac6778..c29b391453cd 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -354,17 +354,22 @@
 # define DP_DSC_20_PER_DP_DSC_SINK          (1 << 1)
 # define DP_DSC_24_PER_DP_DSC_SINK          (1 << 2)
 
-#define DP_DSC_MAX_BPP_DELTA		    0x06E
+#define DP_DSC_MAX_BPP_DELTA_VERSION_1		0x06E
 # 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_INC           0x06F
-# 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_1          0x4
-# define DP_DSC_BITS_PER_PIXEL_MASK         0x7
+# define DP_DSC_BPP_DELTA_444			16
+# define DP_DSC_BPP_DELTA_420			12
+# define DP_DSC_BPP_DELTA_SHIFT_420		5
+
+#define DP_DSC_BITS_PER_PIXEL_INC		0x06F
+# 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_1		0x4
+# define DP_DSC_BITS_PER_PIXEL_MASK		0x7
+# define DP_DSC_NATIVE4222_MAX_BPP_DELTA_MASK	0x78
+# define DP_DSC_BPP_DELTA_NATIVE_422		16
 
 #define DP_PSR_SUPPORT                      0x070   /* XXX 1.2? */
 # define DP_PSR_IS_SUPPORTED                1
-- 
2.25.1