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@xxxxxxxxxx> --- 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 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 -- 2.45.0.rc1.225.g2a3ae87e7f-goog