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/core/dc_link.c | |
| 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/core/dc_link.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index a4180ba63d82..fe29a398b703 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -313,7 +313,7 @@ static enum signal_type get_basic_signal_type( * @brief * Check whether there is a dongle on DP connector */ -static bool is_dp_sink_present(struct dc_link *link) +bool dc_link_is_dp_sink_present(struct dc_link *link) { enum gpio_result gpio_result; uint32_t clock_pin = 0; @@ -406,7 +406,7 @@ static enum signal_type link_detect_sink( * we assume signal is DVI; it could be corrected * to HDMI after dongle detection */ - if (!is_dp_sink_present(link)) + if (!dm_helpers_is_dp_sink_present(link)) result = SIGNAL_TYPE_DVI_SINGLE_LINK; } } |