diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 777210811311..da17ece1a2c5 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -243,6 +243,7 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf, { struct amdgpu_dm_connector *connector = file_inode(f)->i_private; struct dc_link *link = connector->dc_link; + struct amdgpu_device *adev = drm_to_adev(connector->base.dev); struct dc *dc = (struct dc *)link->dc; struct dc_link_settings prefer_link_settings; char *wr_buf = NULL; @@ -302,6 +303,9 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf, if (!valid_input) { kfree(wr_buf); DRM_DEBUG_DRIVER("Invalid Input value No HW will be programmed\n"); + mutex_lock(&adev->dm.dc_lock); + dc_link_set_preferred_training_settings(dc, NULL, NULL, link, false); + mutex_unlock(&adev->dm.dc_lock); return size; } @@ -313,7 +317,9 @@ static ssize_t dp_link_settings_write(struct file *f, const char __user *buf, prefer_link_settings.lane_count = param[0]; prefer_link_settings.link_rate = param[1]; - dc_link_set_preferred_training_settings(dc, &prefer_link_settings, NULL, link, true); + mutex_lock(&adev->dm.dc_lock); + dc_link_set_preferred_training_settings(dc, &prefer_link_settings, NULL, link, false); + mutex_unlock(&adev->dm.dc_lock); kfree(wr_buf); return size; @@ -2883,7 +2889,9 @@ static ssize_t edp_ilr_write(struct file *f, const char __user *buf, kfree(wr_buf); DRM_DEBUG_DRIVER("Invalid Input value. No HW will be programmed\n"); prefer_link_settings.use_link_rate_set = false; + mutex_lock(&adev->dm.dc_lock); dc_link_set_preferred_training_settings(dc, NULL, NULL, link, false); + mutex_unlock(&adev->dm.dc_lock); return size; } |