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| author | Harry Wentland <harry.wentland@amd.com> | 2018-05-29 20:11:55 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-13 22:48:21 +0300 |
| commit | aac5db824d6f5997344101ae0e71fbb003b9692b (patch) | |
| tree | ed5c11e0ab8c214bede4d9f9af03e3dd2cd34102 /drivers/gpu/drm/amd/display/dc/dm_helpers.h | |
| parent | 1bd493e37807c4bf7ee8c4809d2d83545379c04d (diff) | |
| download | linux-aac5db824d6f5997344101ae0e71fbb003b9692b.tar.xz | |
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/dm_helpers.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dm_helpers.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dm_helpers.h b/drivers/gpu/drm/amd/display/dc/dm_helpers.h index 034369fbb9e2..7e6b9f5b8906 100644 --- a/drivers/gpu/drm/amd/display/dc/dm_helpers.h +++ b/drivers/gpu/drm/amd/display/dc/dm_helpers.h @@ -103,6 +103,9 @@ bool dm_helpers_submit_i2c( const struct dc_link *link, struct i2c_command *cmd); +bool dm_helpers_is_dp_sink_present( + struct dc_link *link); + enum dc_edid_status dm_helpers_read_local_edid( struct dc_context *ctx, struct dc_link *link, |