diff options
| author | Ayushi Makhija <quic_amakhija@quicinc.com> | 2025-05-05 12:42:43 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> | 2025-05-05 17:23:34 +0300 |
| commit | 71867e8d88fc7f94c2e47b3cfd676710c120cbe3 (patch) | |
| tree | de9bd797ce692f1306a3aaaa9d2433f2ca72fe93 /drivers/gpu/drm/bridge | |
| parent | ca8a78cdceb48ad3b753f836068611265840ef22 (diff) | |
| download | linux-71867e8d88fc7f94c2e47b3cfd676710c120cbe3.tar.xz | |
drm/bridge: anx7625: fix drm_bridge ops flags to support hot-plugging
The anx7625_link_bridge() checks if a device is not a panel
bridge and add DRM_BRIDGE_OP_HPD and DRM_BRIDGE_OP_DETECT
flags to the drm_bridge->ops. However, on port 1 of the anx7625
bridge, any device added is always treated as a panel bridge,
preventing connector_detect() from being called. To resolve
this, instead of just checking if it is a panel bridge, verify
the type of device based on aux whether it is a DisplayPort or
eDP panel. If the device is not of the eDP type, add
DRM_BRIDGE_OP_HPD and DRM_BRIDGE_OP_DETECT flags to the to
the drm_bridge->ops.
Signed-off-by: Ayushi Makhija <quic_amakhija@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250505094245.2660750-5-quic_amakhija@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/analogix/anx7625.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 8cfae7f3c9ee..a791a2df951a 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -2603,9 +2603,8 @@ static int anx7625_link_bridge(struct drm_dp_aux *aux) platform->bridge.of_node = dev->of_node; if (!anx7625_of_panel_on_aux_bus(dev)) platform->bridge.ops |= DRM_BRIDGE_OP_EDID; - if (!platform->pdata.panel_bridge) - platform->bridge.ops |= DRM_BRIDGE_OP_HPD | - DRM_BRIDGE_OP_DETECT; + if (!platform->pdata.panel_bridge || !anx7625_of_panel_on_aux_bus(dev)) + platform->bridge.ops |= DRM_BRIDGE_OP_HPD | DRM_BRIDGE_OP_DETECT; platform->bridge.type = platform->pdata.panel_bridge ? DRM_MODE_CONNECTOR_eDP : DRM_MODE_CONNECTOR_DisplayPort; |