xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/omap: dss: Functions to check components in the display/output list

Browse Source 
The functions can be used to check a component (by it's of_node) if it is
part of the omapdss display or output list. If the component is found, it
means that the driver is loaded.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Peter Ujfalusi
2016-05-02 14:55:38 +03:00
committed by Tomi Valkeinen
parent be2d68c69e
commit 7c79e8d67f
3 changed files with 34 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/gpu/drm/omapdrm/dss/display.c
View File

@@ -132,6 +132,24 @@ void omapdss_unregister_display(struct omap_dss_device *dssdev)
}
EXPORT_SYMBOL(omapdss_unregister_display);
bool omapdss_component_is_display(struct device_node *node)
{
struct omap_dss_device *dssdev;
bool found = false;
mutex_lock(&panel_list_mutex);
list_for_each_entry(dssdev, &panel_list, panel_list) {
if (dssdev->dev->of_node == node) {
found = true;
goto out;
}
}
out:
mutex_unlock(&panel_list_mutex);
return found;
}
EXPORT_SYMBOL(omapdss_component_is_display);
struct omap_dss_device *omap_dss_get_device(struct omap_dss_device *dssdev)
{
if (!try_module_get(dssdev->owner))