diff options
| author | John Barberiz <jbarberi@amd.com> | 2018-01-12 14:51:21 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:18:42 -0500 |
| commit | 243c46c5ce807685748b4dda17ff99fac33b16f4 (patch) | |
| tree | bde78f8ec8e5a8146ec320dc5ecb811b4dc97ff2 /drivers/gpu/drm/amd/display/dc/core/dc_link.c | |
| parent | 9557080196d7c328aa514d2303a2fd7a985c5c2d (diff) | |
| download | linux-243c46c5ce807685748b4dda17ff99fac33b16f4.tar.bz2 | |
drm/amd/display: Add temporary delay on disconnect patch
Signed-off-by: John Barberiz <jbarberi@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 | 14 |
1 files changed, 10 insertions, 4 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 b09f77bd45c7..c7e159a6c284 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -50,6 +50,7 @@ dm_logger_write(dc_ctx->logger, LOG_HW_HOTPLUG, \ __VA_ARGS__) +#define DEFAULT_DELAY_DISCONNECT 100 /******************************************************************************* * Private structures ******************************************************************************/ @@ -117,7 +118,7 @@ struct gpio *get_hpd_gpio(struct dc_bios *dcb, * true on success, false otherwise */ static bool program_hpd_filter( - const struct dc_link *link) + const struct dc_link *link, int default_disconnect_delay) { bool result = false; @@ -133,7 +134,7 @@ static bool program_hpd_filter( case SIGNAL_TYPE_HDMI_TYPE_A: /* Program hpd filter */ delay_on_connect_in_ms = 500; - delay_on_disconnect_in_ms = 100; + delay_on_disconnect_in_ms = default_disconnect_delay; break; case SIGNAL_TYPE_DISPLAY_PORT: case SIGNAL_TYPE_DISPLAY_PORT_MST: @@ -695,6 +696,11 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason) dp_hbr_verify_link_cap(link, &link->reported_link_cap); } + /* Add delay for certain monitors */ + if (sink->edid_caps.panel_patch.disconnect_delay > 0 && + SIGNAL_TYPE_HDMI_TYPE_A) + program_hpd_filter(link, sink->edid_caps.panel_patch.disconnect_delay); + /* HDMI-DVI Dongle */ if (sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A && !sink->edid_caps.edid_hdmi) @@ -1081,7 +1087,7 @@ static bool construct( * If GPIO isn't programmed correctly HPD might not rise or drain * fast enough, leading to bounces. */ - program_hpd_filter(link); + program_hpd_filter(link, DEFAULT_DELAY_DISCONNECT); return true; device_tag_fail: @@ -2000,7 +2006,7 @@ const struct dc_link_status *dc_link_get_status(const struct dc_link *link) void core_link_resume(struct dc_link *link) { if (link->connector_signal != SIGNAL_TYPE_VIRTUAL) - program_hpd_filter(link); + program_hpd_filter(link, DEFAULT_DELAY_DISCONNECT); } static struct fixed31_32 get_pbn_per_slot(struct dc_stream_state *stream) |