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-rw-r--r--drivers/gpu/drm/gma500/cdv_intel_lvds.c3
-rw-r--r--drivers/gpu/drm/gma500/oaktrail_lvds.c5
-rw-r--r--drivers/gpu/drm/gma500/psb_intel_lvds.c3
3 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
index 20e08e65d46..66a41c02683 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
@@ -712,6 +712,7 @@ void cdv_intel_lvds_init(struct drm_device *dev,
* Attempt to get the fixed panel mode from DDC. Assume that the
* preferred mode is the right one.
*/
+ mutex_lock(&dev->mode_config.mutex);
psb_intel_ddc_get_modes(connector,
&gma_encoder->ddc_bus->adapter);
list_for_each_entry(scan, &connector->probed_modes, head) {
@@ -772,10 +773,12 @@ void cdv_intel_lvds_init(struct drm_device *dev,
}
out:
+ mutex_unlock(&dev->mode_config.mutex);
drm_sysfs_connector_add(connector);
return;
failed_find:
+ mutex_unlock(&dev->mode_config.mutex);
printk(KERN_ERR "Failed find\n");
if (gma_encoder->ddc_bus)
psb_intel_i2c_destroy(gma_encoder->ddc_bus);
diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index 5e069786273..9b099468a5d 100644
--- a/drivers/gpu/drm/gma500/oaktrail_lvds.c
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -359,6 +359,7 @@ void oaktrail_lvds_init(struct drm_device *dev,
* if closed, act like it's not there for now
*/
+ mutex_lock(&dev->mode_config.mutex);
i2c_adap = i2c_get_adapter(dev_priv->ops->i2c_bus);
if (i2c_adap == NULL)
dev_err(dev->dev, "No ddc adapter available!\n");
@@ -401,10 +402,14 @@ void oaktrail_lvds_init(struct drm_device *dev,
}
out:
+ mutex_unlock(&dev->mode_config.mutex);
+
drm_sysfs_connector_add(connector);
return;
failed_find:
+ mutex_unlock(&dev->mode_config.mutex);
+
dev_dbg(dev->dev, "No LVDS modes found, disabling.\n");
if (gma_encoder->ddc_bus)
psb_intel_i2c_destroy(gma_encoder->ddc_bus);
diff --git a/drivers/gpu/drm/gma500/psb_intel_lvds.c b/drivers/gpu/drm/gma500/psb_intel_lvds.c
index 32342f6990d..891a028a082 100644
--- a/drivers/gpu/drm/gma500/psb_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c
@@ -777,6 +777,7 @@ void psb_intel_lvds_init(struct drm_device *dev,
* Attempt to get the fixed panel mode from DDC. Assume that the
* preferred mode is the right one.
*/
+ mutex_lock(&dev->mode_config.mutex);
psb_intel_ddc_get_modes(connector, &lvds_priv->ddc_bus->adapter);
list_for_each_entry(scan, &connector->probed_modes, head) {
if (scan->type & DRM_MODE_TYPE_PREFERRED) {
@@ -827,10 +828,12 @@ void psb_intel_lvds_init(struct drm_device *dev,
* actually having one.
*/
out:
+ mutex_unlock(&dev->mode_config.mutex);
drm_sysfs_connector_add(connector);
return;
failed_find:
+ mutex_unlock(&dev->mode_config.mutex);
if (lvds_priv->ddc_bus)
psb_intel_i2c_destroy(lvds_priv->ddc_bus);
failed_ddc: