Link status is available in the ESI field on devices with DPCD r1.2 or higher. DP spec also says "An MST upstream device shall use this field instead of the Link/Sink Device Status field registers, starting from DPCD Address 00200h."
Cc: Jani Nikula <[email protected]> Signed-off-by: Dhinakaran Pandiyan <[email protected]> --- include/drm/drm_dp_helper.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 2c412a15cfa1..0bf15525cdd0 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -738,6 +738,11 @@ #define DP_RECEIVER_ALPM_STATUS 0x200b /* eDP 1.4 */ # define DP_ALPM_LOCK_TIMEOUT_ERROR (1 << 0) +#define LANE0_1_STATUS_ESI 0x200c /* Same as status in 0x202 */ +#define LANE2_3_STATUS_ESI 0x200d /* Same as status in 0x203 */ +#define LANE_ALIGN_STATUS_UPDATED_ESI 0x200e /* Same as status in 0x204 */ +#define SINK_STATUS_ESI 0x200f /* Same as status in 0x205 */ + #define DP_DPRX_FEATURE_ENUMERATION_LIST 0x2210 /* DP 1.3 */ # define DP_GTC_CAP (1 << 0) /* DP 1.3 */ # define DP_SST_SPLIT_SDP_CAP (1 << 1) /* DP 1.4 */ -- 2.11.0 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
