diff options
Diffstat (limited to 'include/drm/drm_dp_helper.h')
| -rw-r--r-- | include/drm/drm_dp_helper.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 499e9f625aef..bb9d0deca07c 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -46,7 +46,7 @@ #define DP_AUX_I2C_WRITE 0x0 #define DP_AUX_I2C_READ 0x1 -#define DP_AUX_I2C_STATUS 0x2 +#define DP_AUX_I2C_WRITE_STATUS_UPDATE 0x2 #define DP_AUX_I2C_MOT 0x4 #define DP_AUX_NATIVE_WRITE 0x8 #define DP_AUX_NATIVE_READ 0x9 @@ -568,6 +568,10 @@ #define MODE_I2C_READ 4 #define MODE_I2C_STOP 8 +/* DP 1.2 MST PORTs - Section 2.5.1 v1.2a spec */ +#define DP_MST_PHYSICAL_PORT_0 0 +#define DP_MST_LOGICAL_PORT_0 8 + #define DP_LINK_STATUS_SIZE 6 bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE], int lane_count); @@ -634,6 +638,13 @@ drm_dp_enhanced_frame_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) (dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP); } +static inline bool +drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE]) +{ + return dpcd[DP_DPCD_REV] >= 0x12 && + dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED; +} + /* * DisplayPort AUX channel */ |