@@ -24,6 +24,7 @@
#include <linux/mutex.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/vmalloc.h>
#include <media/soc_camera.h>
@@ -387,6 +388,11 @@ static int soc_camera_open(struct file *file)
goto eiciadd;
}
+ pm_runtime_enable(&icd->vdev->dev);
+ ret = pm_runtime_resume(&icd->vdev->dev);
+ if (ret < 0 && ret != -ENOSYS)
+ goto eresume;
+
/*
* Try to configure with default parameters. Notice: this is the
* very first open, so, we cannot race against other calls,
@@ -408,10 +414,12 @@ static int soc_camera_open(struct file *file)
return 0;
/*
- * First five errors are entered with the .video_lock held
+ * First four errors are entered with the .video_lock held
* and use_count == 1
*/
esfmt:
+ pm_runtime_disable(&icd->vdev->dev);
+eresume:
ici->ops->remove(icd);
eiciadd:
if (icl->power)
@@ -436,7 +444,11 @@ static int soc_camera_close(struct file *file)
if (!icd->use_count) {
struct soc_camera_link *icl = to_soc_camera_link(icd);
+ pm_runtime_suspend(&icd->vdev->dev);
+ pm_runtime_disable(&icd->vdev->dev);
+
ici->ops->remove(icd);
+
if (icl->power)
icl->power(icd->pdev, 0);
}
@@ -1294,6 +1306,7 @@ static int video_dev_create(struct soc_camera_device *icd)
*/
static int soc_camera_video_start(struct soc_camera_device *icd)
{
+ struct device_type *type = icd->vdev->dev.type;
int ret;
if (!icd->dev.parent)
@@ -1310,6 +1323,9 @@ static int soc_camera_video_start(struct soc_camera_device *icd)
return ret;
}
+ /* Restore device type, possibly set by the subdevice driver */
+ icd->vdev->dev.type = type;
+
return 0;
}
@@ -282,4 +282,12 @@ static inline void soc_camera_limit_side(unsigned int *start,
extern unsigned long soc_camera_apply_sensor_flags(struct soc_camera_link *icl,
unsigned long flags);
+/* This is only temporary here - until v4l2-subdev begins to link to video_device */
+#include <linux/i2c.h>
+static inline struct video_device *soc_camera_i2c_to_vdev(struct i2c_client *client)
+{
+ struct soc_camera_device *icd = client->dev.platform_data;
+ return icd->vdev;
+}
+
#endif