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path: root/drivers/gpu/drm/radeon/radeon_connectors.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c29
1 files changed, 26 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 449c3d8c683..ff6a2e0d9a2 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -724,6 +724,7 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
dret = radeon_ddc_probe(radeon_connector,
radeon_connector->requires_extended_probe);
if (dret) {
+ radeon_connector->detected_by_load = false;
if (radeon_connector->edid) {
kfree(radeon_connector->edid);
radeon_connector->edid = NULL;
@@ -750,12 +751,21 @@ radeon_vga_detect(struct drm_connector *connector, bool force)
} else {
/* if we aren't forcing don't do destructive polling */
- if (!force)
- return connector->status;
+ if (!force) {
+ /* only return the previous status if we last
+ * detected a monitor via load.
+ */
+ if (radeon_connector->detected_by_load)
+ return connector->status;
+ else
+ return ret;
+ }
if (radeon_connector->dac_load_detect && encoder) {
encoder_funcs = encoder->helper_private;
ret = encoder_funcs->detect(encoder, connector);
+ if (ret != connector_status_disconnected)
+ radeon_connector->detected_by_load = true;
}
}
@@ -897,6 +907,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
dret = radeon_ddc_probe(radeon_connector,
radeon_connector->requires_extended_probe);
if (dret) {
+ radeon_connector->detected_by_load = false;
if (radeon_connector->edid) {
kfree(radeon_connector->edid);
radeon_connector->edid = NULL;
@@ -959,8 +970,18 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
if ((ret == connector_status_connected) && (radeon_connector->use_digital == true))
goto out;
+ /* DVI-D and HDMI-A are digital only */
+ if ((connector->connector_type == DRM_MODE_CONNECTOR_DVID) ||
+ (connector->connector_type == DRM_MODE_CONNECTOR_HDMIA))
+ goto out;
+
+ /* if we aren't forcing don't do destructive polling */
if (!force) {
- ret = connector->status;
+ /* only return the previous status if we last
+ * detected a monitor via load.
+ */
+ if (radeon_connector->detected_by_load)
+ ret = connector->status;
goto out;
}
@@ -985,6 +1006,8 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
if (ret == connector_status_connected) {
radeon_connector->use_digital = false;
}
+ if (ret != connector_status_disconnected)
+ radeon_connector->detected_by_load = true;
}
break;
}