drm/i915/lvds: Remove incorrect mode locking
One doesn't need to hold the mode lock in order to duplicate a mode.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index bfc1bb4..a05ca32 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -732,7 +732,6 @@
panel_fixed_mode = dev_priv->panel_fixed_mode;
temp_downclock = panel_fixed_mode->clock;
- mutex_lock(&dev->mode_config.mutex);
list_for_each_entry(scan, &connector->probed_modes, head) {
/*
* If one mode has the same resolution with the fixed_panel
@@ -758,7 +757,6 @@
}
}
}
- mutex_unlock(&dev->mode_config.mutex);
if (temp_downclock < panel_fixed_mode->clock &&
i915_lvds_downclock) {
/* We found the downclock for LVDS. */
@@ -929,23 +927,18 @@
dev_priv->lvds_edid_good = false;
list_for_each_entry(scan, &connector->probed_modes, head) {
- mutex_lock(&dev->mode_config.mutex);
if (scan->type & DRM_MODE_TYPE_PREFERRED) {
dev_priv->panel_fixed_mode =
drm_mode_duplicate(dev, scan);
- mutex_unlock(&dev->mode_config.mutex);
intel_find_lvds_downclock(dev, connector);
goto out;
}
- mutex_unlock(&dev->mode_config.mutex);
}
/* Failed to get EDID, what about VBT? */
if (dev_priv->lfp_lvds_vbt_mode) {
- mutex_lock(&dev->mode_config.mutex);
dev_priv->panel_fixed_mode =
drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
- mutex_unlock(&dev->mode_config.mutex);
if (dev_priv->panel_fixed_mode) {
dev_priv->panel_fixed_mode->type |=
DRM_MODE_TYPE_PREFERRED;