diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2023-04-03 10:25:44 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2023-04-03 10:25:45 +0200 |
| commit | 1138398d71e8e583669fcec96784471332e488d4 (patch) | |
| tree | cc832e08796450735ef16b8b75298cd9bb011a88 /drivers/gpu/drm/amd/display/dc/link/link_detection.c | |
| parent | 63758fec651f2fe7eab0c5a833f84795911c36e9 (diff) | |
| parent | feae1bd80ec69a3a0011ba1fb88994785f705e3e (diff) | |
Merge tag 'amd-drm-next-6.4-2023-03-31' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.4-2023-03-31:
amdgpu:
- Misc code cleanups
- S4 fixes
- MES fixes
- SR-IOV fixes
- Link DC backlight to connector device rather than PCI device
- W=1 fixes
- ASPM quirk
- RAS fixes
- DC dynamic split fixes and enablement for remaining chips
- Navi1x SMU fix
- Initial NBIO 7.9 support
- Initial GC 9.4.3 support
- Initial GFXHUB 1.2 support
- Initial MMHUB 1.8 support
- DCN 3.1.5 fixes
- Initial DC FAMs infrastructure
- Add support for 6.75Gbps link rates
- Add sysfs nodes for secondary VCN clocks
amdkfd:
- Initial support for GC 9.4.3
radeon:
- Convert to client-based fbdev emulation
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230331221955.7896-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/link/link_detection.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/link_detection.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c index fee71ebdfc73..a131e30fd7d6 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c @@ -60,6 +60,10 @@ */ #define LINK_TRAINING_MAX_VERIFY_RETRY 2 +static const u8 DP_SINK_BRANCH_DEV_NAME_7580[] = "7580\x80u"; + +static const uint8_t dp_hdmi_dongle_signature_str[] = "DP-HDMI ADAPTOR"; + static enum ddc_transaction_type get_ddc_transaction_type(enum signal_type sink_signal) { enum ddc_transaction_type transaction_type = DDC_TRANSACTION_TYPE_NONE; @@ -494,8 +498,6 @@ static void query_hdcp_capability(enum signal_type signal, struct dc_link *link) dc_process_hdcp_msg(signal, link, &msg22); if (signal == SIGNAL_TYPE_DISPLAY_PORT || signal == SIGNAL_TYPE_DISPLAY_PORT_MST) { - enum hdcp_message_status status = HDCP_MESSAGE_UNSUPPORTED; - msg14.data = &link->hdcp_caps.bcaps.raw; msg14.length = sizeof(link->hdcp_caps.bcaps.raw); msg14.msg_id = HDCP_MESSAGE_ID_READ_BCAPS; @@ -503,7 +505,7 @@ static void query_hdcp_capability(enum signal_type signal, struct dc_link *link) msg14.link = HDCP_LINK_PRIMARY; msg14.max_retries = 5; - status = dc_process_hdcp_msg(signal, link, &msg14); + dc_process_hdcp_msg(signal, link, &msg14); } } @@ -830,7 +832,7 @@ static void verify_link_capability(struct dc_link *link, struct dc_sink *sink, verify_link_capability_non_destructive(link); } -/** +/* * detect_link_and_local_sink() - Detect if a sink is attached to a given link * * link->local_sink is created or destroyed as needed. @@ -1183,7 +1185,7 @@ static bool detect_link_and_local_sink(struct dc_link *link, return true; } -/** +/* * link_detect_connection_type() - Determine if there is a sink connected * * @type: Returned connection type @@ -1225,6 +1227,11 @@ bool link_detect_connection_type(struct dc_link *link, enum dc_connection_type * /* TODO: need to do the actual detection */ } else { *type = dc_connection_none; + if (link->connector_signal == SIGNAL_TYPE_EDP) { + /* eDP is not connected, power down it */ + if (!link->dc->config.edp_no_power_sequencing) + link->dc->hwss.edp_power_control(link, false); + } } return true; |