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path: root/drivers/gpu/drm/drm_sysfs.c
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Diffstat (limited to 'drivers/gpu/drm/drm_sysfs.c')
-rw-r--r--drivers/gpu/drm/drm_sysfs.c33
1 files changed, 29 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 02296653a058..2290b3b73832 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -30,14 +30,14 @@ static struct device_type drm_sysfs_device_minor = {
};
/**
- * drm_class_suspend - DRM class suspend hook
+ * __drm_class_suspend - internal DRM class suspend routine
* @dev: Linux device to suspend
* @state: power state to enter
*
* Just figures out what the actual struct drm_device associated with
* @dev is and calls its suspend hook, if present.
*/
-static int drm_class_suspend(struct device *dev, pm_message_t state)
+static int __drm_class_suspend(struct device *dev, pm_message_t state)
{
if (dev->type == &drm_sysfs_device_minor) {
struct drm_minor *drm_minor = to_drm_minor(dev);
@@ -52,6 +52,26 @@ static int drm_class_suspend(struct device *dev, pm_message_t state)
}
/**
+ * drm_class_suspend - internal DRM class suspend hook. Simply calls
+ * __drm_class_suspend() with the correct pm state.
+ * @dev: Linux device to suspend
+ */
+static int drm_class_suspend(struct device *dev)
+{
+ return __drm_class_suspend(dev, PMSG_SUSPEND);
+}
+
+/**
+ * drm_class_freeze - internal DRM class freeze hook. Simply calls
+ * __drm_class_suspend() with the correct pm state.
+ * @dev: Linux device to freeze
+ */
+static int drm_class_freeze(struct device *dev)
+{
+ return __drm_class_suspend(dev, PMSG_FREEZE);
+}
+
+/**
* drm_class_resume - DRM class resume hook
* @dev: Linux device to resume
*
@@ -72,6 +92,12 @@ static int drm_class_resume(struct device *dev)
return 0;
}
+static const struct dev_pm_ops drm_class_dev_pm_ops = {
+ .suspend = drm_class_suspend,
+ .resume = drm_class_resume,
+ .freeze = drm_class_freeze,
+};
+
static char *drm_devnode(struct device *dev, umode_t *mode)
{
return kasprintf(GFP_KERNEL, "dri/%s", dev_name(dev));
@@ -106,8 +132,7 @@ struct class *drm_sysfs_create(struct module *owner, char *name)
goto err_out;
}
- class->suspend = drm_class_suspend;
- class->resume = drm_class_resume;
+ class->pm = &drm_class_dev_pm_ops;
err = class_create_file(class, &class_attr_version.attr);
if (err)