[v3,04/10] drm/display: Add mask definitions for DP_PAYLOAD_ALLOCATE_* registers

Commit Message

Paweł Anikiel May 7, 2024, 3:54 p.m. UTC

Each of these registers contains a single value, but not the entire
8 bits:

DP_PAYLOAD_ALLOCATE_SET - Bit 7 Reserved
DP_PAYLOAD_ALLOCATE_START_TIME_SLOT - Bits 7:6 Reserved
DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT - Bits 7:6 Reserved

Add definitions to properly mask off values read from these registers.

Signed-off-by: Paweł Anikiel <[e-mail]>
---
 include/drm/display/drm_dp.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

Patch

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 4891bd916d26..1c397a5f8fc5 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -734,8 +734,13 @@ 
 # define DP_PANEL_REPLAY_SU_ENABLE                      (1 << 6)
 
 #define DP_PAYLOAD_ALLOCATE_SET		    0x1c0
-#define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT 0x1c1
-#define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT 0x1c2
+# define DP_PAYLOAD_ALLOCATE_SET_MASK	    0x7f
+
+#define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT		0x1c1
+# define DP_PAYLOAD_ALLOCATE_START_TIME_SLOT_MASK	0x3f
+
+#define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT		0x1c2
+# define DP_PAYLOAD_ALLOCATE_TIME_SLOT_COUNT_MASK	0x3f
 
 /* Link/Sink Device Status */
 #define DP_SINK_COUNT			    0x200