diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 248953d2fdb742d69111193f62638c0a95f179d5..6801a0c2631b2fd852d05bc2235e113bd7d0febd 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -8472,7 +8472,7 @@ int cik_irq_process(struct radeon_device *rdev)
if (queue_dp)
schedule_work(&rdev->dp_work);
if (queue_hotplug)
- schedule_work(&rdev->hotplug_work);
+ schedule_delayed_work(&rdev->hotplug_work, 0);
if (queue_reset) {
rdev->needs_reset = true;
wake_up_all(&rdev->fence_queue);
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 7f33767d7ed65f4a966cb2b3e01b250846cca340..f61d66495ba296ebbb359538cfb629671b5bbad9 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -5344,7 +5344,7 @@ int evergreen_irq_process(struct radeon_device *rdev)
if (queue_dp)
schedule_work(&rdev->dp_work);
if (queue_hotplug)
- schedule_work(&rdev->hotplug_work);
+ schedule_delayed_work(&rdev->hotplug_work, 0);
if (queue_hdmi)
schedule_work(&rdev->audio_work);
if (queue_thermal && rdev->pm.dpm_enabled)
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 238b13f045c180480ef4f49983bbc19b76016729..2df3c860beb3e22ea9e6993be415b26f7f98dbcc 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -806,7 +806,7 @@ int r100_irq_process(struct radeon_device *rdev)
status = r100_irq_ack(rdev);
}
if (queue_hotplug)
- schedule_work(&rdev->hotplug_work);
+ schedule_delayed_work(&rdev->hotplug_work, 0);
if (rdev->msi_enabled) {
switch (rdev->family) {
case CHIP_RS400:
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 4ea5b10ff5f412fb0fc2b161c8fe936ab154bd2f..cc2fdf0be37a600e313d239e07520331229a0035 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -4276,7 +4276,7 @@ int r600_irq_process(struct radeon_device *rdev)
WREG32(IH_RB_RPTR, rptr);
}
if (queue_hotplug)
- schedule_work(&rdev->hotplug_work);
+ schedule_delayed_work(&rdev->hotplug_work, 0);
if (queue_hdmi)
schedule_work(&rdev->audio_work);
if (queue_thermal && rdev->pm.dpm_enabled)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index b6cbd816537e7e69bc920482961cdb47b6dfd68d..87db64983ea8c18a0305eeedf1e25f18cffc87ae 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2414,7 +2414,7 @@ struct radeon_device {
struct r600_ih ih; /* r6/700 interrupt ring */
struct radeon_rlc rlc;
struct radeon_mec mec;
- struct work_struct hotplug_work;
+ struct delayed_work hotplug_work;
struct work_struct dp_work;
struct work_struct audio_work;
int num_crtc; /* number of crtcs */
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 5a2cafb4f1bc595220e603ed1942e65bf24b20b7..340f3f549f295314788fbf9b3052880b8095a7f1 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1234,13 +1234,32 @@ radeon_dvi_detect(struct drm_connector *connector, bool force)
if (r < 0)
return connector_status_disconnected;
+ if (radeon_connector->detected_hpd_without_ddc) {
+ force = true;
+ radeon_connector->detected_hpd_without_ddc = false;
+ }
+
if (!force && radeon_check_hpd_status_unchanged(connector)) {
ret = connector->status;
goto exit;
}
- if (radeon_connector->ddc_bus)
+ if (radeon_connector->ddc_bus) {
dret = radeon_ddc_probe(radeon_connector, false);
+
+ /* Sometimes the pins required for the DDC probe on DVI
+ * connectors don't make contact at the same time that the ones
+ * for HPD do. If the DDC probe fails even though we had an HPD
+ * signal, try again later */
+ if (!dret && !force &&
+ connector->status != connector_status_connected) {
+ DRM_DEBUG_KMS("hpd detected without ddc, retrying in 1 second\n");
+ radeon_connector->detected_hpd_without_ddc = true;
+ schedule_delayed_work(&rdev->hotplug_work,
+ msecs_to_jiffies(1000));
+ goto exit;
+ }
+ }
if (dret) {
radeon_connector->detected_by_load = false;
radeon_connector_free_edid(connector);
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 171d3e43c30cc02257df75645c6c77f0a726de33..979f3bf65f2c474f231a26eb47af963d4436be0f 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -74,7 +74,7 @@ irqreturn_t radeon_driver_irq_handler_kms(int irq, void *arg)
static void radeon_hotplug_work_func(struct work_struct *work)
{
struct radeon_device *rdev = container_of(work, struct radeon_device,
- hotplug_work);
+ hotplug_work.work);
struct drm_device *dev = rdev->ddev;
struct drm_mode_config *mode_config = &dev->mode_config;
struct drm_connector *connector;
@@ -302,7 +302,7 @@ int radeon_irq_kms_init(struct radeon_device *rdev)
}
}
- INIT_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
+ INIT_DELAYED_WORK(&rdev->hotplug_work, radeon_hotplug_work_func);
INIT_WORK(&rdev->dp_work, radeon_dp_work_func);
INIT_WORK(&rdev->audio_work, r600_audio_update_hdmi);
@@ -310,7 +310,7 @@ int radeon_irq_kms_init(struct radeon_device *rdev)
r = drm_irq_install(rdev->ddev, rdev->ddev->pdev->irq);
if (r) {
rdev->irq.installed = false;
- flush_work(&rdev->hotplug_work);
+ flush_delayed_work(&rdev->hotplug_work);
return r;
}
@@ -333,7 +333,7 @@ void radeon_irq_kms_fini(struct radeon_device *rdev)
rdev->irq.installed = false;
if (rdev->msi_enabled)
pci_disable_msi(rdev->pdev);
- flush_work(&rdev->hotplug_work);
+ flush_delayed_work(&rdev->hotplug_work);
}
}
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 830e171c3a9e35c108f69acd2d4d45386033cd8b..0fa3e255a545fb133a2cf07a0ad397b74e859be4 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -553,6 +553,7 @@ struct radeon_connector {
void *con_priv;
bool dac_load_detect;
bool detected_by_load; /* if the connection status was determined by load */
+ bool detected_hpd_without_ddc; /* if an HPD signal was detected on DVI, but ddc probing failed */
uint16_t connector_object_id;
struct radeon_hpd hpd;
struct radeon_router router;
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 97a904835759f7876b2b69be104493cf302554a7..6244f4e44e9a541d15d5a76ac36beff8822c3145 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -813,7 +813,7 @@ int rs600_irq_process(struct radeon_device *rdev)
status = rs600_irq_ack(rdev);
}
if (queue_hotplug)
- schedule_work(&rdev->hotplug_work);
+ schedule_delayed_work(&rdev->hotplug_work, 0);
if (queue_hdmi)
schedule_work(&rdev->audio_work);
if (rdev->msi_enabled) {
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 07037e32dea327f935ef39e0bdafea8fb640b39a..fb1a7ec1a81c29344c66ad1ca597350e540662e2 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -6848,7 +6848,7 @@ int si_irq_process(struct radeon_device *rdev)
if (queue_dp)
schedule_work(&rdev->dp_work);
if (queue_hotplug)
- schedule_work(&rdev->hotplug_work);
+ schedule_delayed_work(&rdev->hotplug_work, 0);
if (queue_thermal && rdev->pm.dpm_enabled)
schedule_work(&rdev->pm.dpm.thermal.work);
rdev->ih.rptr = rptr;