diff options
| author | Harry Wentland <harry.wentland@amd.com> | 2018-05-29 13:11:55 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-13 14:48:21 -0500 |
| commit | aac5db824d6f5997344101ae0e71fbb003b9692b (patch) | |
| tree | ed5c11e0ab8c214bede4d9f9af03e3dd2cd34102 /drivers/gpu/drm/amd/display/dc/dc_link.h | |
| parent | 1bd493e37807c4bf7ee8c4809d2d83545379c04d (diff) | |
drm/amd/display: Serialize is_dp_sink_present
Access to GPIO needs to be serialized. Aux transactions are already
serialized in DRM but we also need to serialize access to the GPIO pin
for purposes of DP dongle detection.
Call is_dp_sink_present through DM so we can lock correctly. This
follows the same pattern used for DPCD transactions.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 83eea42452b5..eda4a5d3ff1c 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -210,6 +210,8 @@ bool dc_link_dp_set_test_pattern( void dc_link_enable_hpd_filter(struct dc_link *link, bool enable); +bool dc_link_is_dp_sink_present(struct dc_link *link); + /* * DPCD access interfaces */ |