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[media] media: davinci: vpfe: use v4l2_fh for priority handling
This patch migrates the vpfe driver to use v4l2_fh for priority handling. Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -498,6 +498,7 @@ unlock:
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static int vpfe_open(struct file *file)
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{
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struct vpfe_device *vpfe_dev = video_drvdata(file);
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struct video_device *vdev = video_devdata(file);
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struct vpfe_fh *fh;
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v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev, "vpfe_open\n");
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@ -517,6 +518,7 @@ static int vpfe_open(struct file *file)
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/* store pointer to fh in private_data member of file */
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file->private_data = fh;
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fh->vpfe_dev = vpfe_dev;
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v4l2_fh_init(&fh->fh, vdev);
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mutex_lock(&vpfe_dev->lock);
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/* If decoder is not initialized. initialize it */
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if (!vpfe_dev->initialized) {
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@ -529,9 +531,7 @@ static int vpfe_open(struct file *file)
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vpfe_dev->usrs++;
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/* Set io_allowed member to false */
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fh->io_allowed = 0;
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/* Initialize priority of this instance to default priority */
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fh->prio = V4L2_PRIORITY_UNSET;
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v4l2_prio_open(&vpfe_dev->prio, &fh->prio);
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v4l2_fh_add(&fh->fh);
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mutex_unlock(&vpfe_dev->lock);
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return 0;
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}
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@ -740,8 +740,8 @@ static int vpfe_release(struct file *file)
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/* Decrement device usrs counter */
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vpfe_dev->usrs--;
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/* Close the priority */
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v4l2_prio_close(&vpfe_dev->prio, fh->prio);
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v4l2_fh_del(&fh->fh);
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v4l2_fh_exit(&fh->fh);
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/* If this is the last file handle */
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if (!vpfe_dev->usrs) {
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vpfe_dev->initialized = 0;
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@ -1910,14 +1910,13 @@ static int vpfe_probe(struct platform_device *pdev)
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/* Initialize field of the device objects */
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vpfe_dev->numbuffers = config_params.numbuffers;
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/* Initialize prio member of device object */
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v4l2_prio_init(&vpfe_dev->prio);
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/* register video device */
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v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
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"trying to register vpfe device.\n");
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v4l2_dbg(1, debug, &vpfe_dev->v4l2_dev,
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"video_dev=%x\n", (int)&vpfe_dev->video_dev);
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vpfe_dev->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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set_bit(V4L2_FL_USE_FH_PRIO, &vpfe_dev->video_dev->flags);
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ret = video_register_device(vpfe_dev->video_dev,
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VFL_TYPE_GRABBER, -1);
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@ -26,6 +26,7 @@
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#include <linux/videodev2.h>
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#include <linux/clk.h>
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#include <linux/i2c.h>
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#include <media/v4l2-fh.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-device.h>
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#include <media/videobuf-dma-contig.h>
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@ -110,8 +111,6 @@ struct vpfe_device {
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struct v4l2_device v4l2_dev;
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/* parent device */
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struct device *pdev;
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/* Used to keep track of state of the priority */
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struct v4l2_prio_state prio;
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/* number of open instances of the channel */
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u32 usrs;
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/* Indicates id of the field which is being displayed */
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@ -174,11 +173,10 @@ struct vpfe_device {
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/* File handle structure */
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struct vpfe_fh {
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struct v4l2_fh fh;
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struct vpfe_device *vpfe_dev;
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/* Indicates whether this file handle is doing IO */
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u8 io_allowed;
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/* Used to keep track priority of this instance */
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enum v4l2_priority prio;
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};
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struct vpfe_config_params {
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