[PATCH v2 5/9] drm/display: Add mask definitions for DP_PAYLOAD_ALLOCATE_* registers

Paweł Anikiel
2024-02-21T16:02:42Z

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 <panikiel@google.com>
---
include/drm/display/drm_dp.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 3731828825bd..9dee30190f14 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -733,8 +733,13 @@
# 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
--
2.44.0.rc0.258.g7320e95886-goog