diff options
Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-v4l2.c')
-rw-r--r-- | drivers/media/platform/rcar-vin/rcar-v4l2.c | 190 |
1 files changed, 41 insertions, 149 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c index 7cbdcbf9b090..0936bcd98df1 100644 --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c @@ -749,103 +749,65 @@ static const struct v4l2_ioctl_ops rvin_mc_ioctl_ops = { * File Operations */ -static int rvin_power_on(struct rvin_dev *vin) +static int rvin_power_parallel(struct rvin_dev *vin, bool on) { - int ret; struct v4l2_subdev *sd = vin_to_source(vin); - - pm_runtime_get_sync(vin->v4l2_dev.dev); - - ret = v4l2_subdev_call(sd, core, s_power, 1); - if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) - return ret; - return 0; -} - -static int rvin_power_off(struct rvin_dev *vin) -{ + int power = on ? 1 : 0; int ret; - struct v4l2_subdev *sd = vin_to_source(vin); - - ret = v4l2_subdev_call(sd, core, s_power, 0); - - pm_runtime_put(vin->v4l2_dev.dev); + ret = v4l2_subdev_call(sd, core, s_power, power); if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) return ret; return 0; } -static int rvin_initialize_device(struct file *file) +static int rvin_open(struct file *file) { struct rvin_dev *vin = video_drvdata(file); int ret; - struct v4l2_format f = { - .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, - .fmt.pix = { - .width = vin->format.width, - .height = vin->format.height, - .field = vin->format.field, - .colorspace = vin->format.colorspace, - .pixelformat = vin->format.pixelformat, - }, - }; - - ret = rvin_power_on(vin); + ret = pm_runtime_get_sync(vin->dev); if (ret < 0) return ret; - pm_runtime_enable(&vin->vdev.dev); - ret = pm_runtime_resume(&vin->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, - * apart from someone else calling open() simultaneously, but - * .host_lock is protecting us against it. - */ - ret = rvin_s_fmt_vid_cap(file, NULL, &f); - if (ret < 0) - goto esfmt; - - v4l2_ctrl_handler_setup(&vin->ctrl_handler); - - return 0; -esfmt: - pm_runtime_disable(&vin->vdev.dev); -eresume: - rvin_power_off(vin); - - return ret; -} - -static int rvin_open(struct file *file) -{ - struct rvin_dev *vin = video_drvdata(file); - int ret; - - mutex_lock(&vin->lock); + ret = mutex_lock_interruptible(&vin->lock); + if (ret) + goto err_pm; file->private_data = vin; ret = v4l2_fh_open(file); if (ret) - goto unlock; - - if (!v4l2_fh_is_singular_file(file)) - goto unlock; + goto err_unlock; - if (rvin_initialize_device(file)) { - v4l2_fh_release(file); - ret = -ENODEV; + if (vin->info->use_mc) { + ret = v4l2_pipeline_pm_use(&vin->vdev.entity, 1); + if (ret < 0) + goto err_open; + } else { + if (v4l2_fh_is_singular_file(file)) { + ret = rvin_power_parallel(vin, true); + if (ret < 0) + goto err_open; + + ret = v4l2_ctrl_handler_setup(&vin->ctrl_handler); + if (ret) + goto err_parallel; + } } + mutex_unlock(&vin->lock); -unlock: + return 0; +err_parallel: + rvin_power_parallel(vin, false); +err_open: + v4l2_fh_release(file); +err_unlock: mutex_unlock(&vin->lock); +err_pm: + pm_runtime_put(vin->dev); + return ret; } @@ -863,18 +825,17 @@ static int rvin_release(struct file *file) /* the release helper will cleanup any on-going streaming */ ret = _vb2_fop_release(file, NULL); - /* - * If this was the last open file. - * Then de-initialize hw module. - */ - if (fh_singular) { - pm_runtime_suspend(&vin->vdev.dev); - pm_runtime_disable(&vin->vdev.dev); - rvin_power_off(vin); + if (vin->info->use_mc) { + v4l2_pipeline_pm_use(&vin->vdev.entity, 0); + } else { + if (fh_singular) + rvin_power_parallel(vin, false); } mutex_unlock(&vin->lock); + pm_runtime_put(vin->dev); + return ret; } @@ -888,74 +849,6 @@ static const struct v4l2_file_operations rvin_fops = { .read = vb2_fop_read, }; -/* ----------------------------------------------------------------------------- - * Media controller file operations - */ - -static int rvin_mc_open(struct file *file) -{ - struct rvin_dev *vin = video_drvdata(file); - int ret; - - ret = mutex_lock_interruptible(&vin->lock); - if (ret) - return ret; - - ret = pm_runtime_get_sync(vin->dev); - if (ret < 0) - goto err_unlock; - - ret = v4l2_pipeline_pm_use(&vin->vdev.entity, 1); - if (ret < 0) - goto err_pm; - - file->private_data = vin; - - ret = v4l2_fh_open(file); - if (ret) - goto err_v4l2pm; - - mutex_unlock(&vin->lock); - - return 0; -err_v4l2pm: - v4l2_pipeline_pm_use(&vin->vdev.entity, 0); -err_pm: - pm_runtime_put(vin->dev); -err_unlock: - mutex_unlock(&vin->lock); - - return ret; -} - -static int rvin_mc_release(struct file *file) -{ - struct rvin_dev *vin = video_drvdata(file); - int ret; - - mutex_lock(&vin->lock); - - /* the release helper will cleanup any on-going streaming. */ - ret = _vb2_fop_release(file, NULL); - - v4l2_pipeline_pm_use(&vin->vdev.entity, 0); - pm_runtime_put(vin->dev); - - mutex_unlock(&vin->lock); - - return ret; -} - -static const struct v4l2_file_operations rvin_mc_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = video_ioctl2, - .open = rvin_mc_open, - .release = rvin_mc_release, - .poll = vb2_fop_poll, - .mmap = vb2_fop_mmap, - .read = vb2_fop_read, -}; - void rvin_v4l2_unregister(struct rvin_dev *vin) { if (!video_is_registered(&vin->vdev)) @@ -996,6 +889,7 @@ int rvin_v4l2_register(struct rvin_dev *vin) snprintf(vdev->name, sizeof(vdev->name), "VIN%u output", vin->id); vdev->release = video_device_release_empty; vdev->lock = &vin->lock; + vdev->fops = &rvin_fops; vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | V4L2_CAP_READWRITE; @@ -1007,10 +901,8 @@ int rvin_v4l2_register(struct rvin_dev *vin) vin->format.colorspace = RVIN_DEFAULT_COLORSPACE; if (vin->info->use_mc) { - vdev->fops = &rvin_mc_fops; vdev->ioctl_ops = &rvin_mc_ioctl_ops; } else { - vdev->fops = &rvin_fops; vdev->ioctl_ops = &rvin_ioctl_ops; rvin_reset_format(vin); } |