Add the bmc_attached flag to struct drm_connector to signal the
presence of a virtual BMC output. The connector reports to be in
status connected even without a physically connected display. Fbcon
or userspace compositors would otherwise stop displaying to the
BMC.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/gpu/drm/drm_probe_helper.c | 6 +++++-
include/drm/drm_connector.h | 8 ++++++++
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index df44be128e72..83c3f2d42d49 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -605,7 +605,11 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
ret = connector_status_unknown;
connector->physical_status = ret;
- connector->status = connector->physical_status;
+
+ if (connector->bmc_attached)
+ connector->status = connector_status_connected;
+ else
+ connector->status = connector->physical_status;
}
/*
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 37e951f04ae8..ed360ae35f21 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1802,6 +1802,14 @@ struct drm_connector {
*/
bool ycbcr_420_allowed;
+ /**
+ * @ bmc_attached:
+ * The connector has a BMC transparently attached to it. It has to
+ * report a connected status, even without a physically connected
+ * display.
+ */
+ bool bmc_attached;
+
/**
* @registration_state: Is this connector initializing, exposed
* (registered) with userspace, or unregistered?
--
2.46.0
