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path: root/drivers/media/platform/davinci/vpif_capture.c
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Diffstat (limited to 'drivers/media/platform/davinci/vpif_capture.c')
-rw-r--r--drivers/media/platform/davinci/vpif_capture.c88
1 files changed, 47 insertions, 41 deletions
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index a96f53ce8088..6216b7ac6875 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -949,11 +949,13 @@ static int vpif_enum_fmt_vid_cap(struct file *file, void *priv,
/* Fill in the information about format */
if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) {
fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- strcpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb");
+ strscpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb",
+ sizeof(fmt->description));
fmt->pixelformat = V4L2_PIX_FMT_SBGGR8;
} else {
fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- strcpy(fmt->description, "YCbCr4:2:2 Semi-Planar");
+ strscpy(fmt->description, "YCbCr4:2:2 Semi-Planar",
+ sizeof(fmt->description));
fmt->pixelformat = V4L2_PIX_FMT_NV16;
}
return 0;
@@ -1094,10 +1096,10 @@ static int vpif_querycap(struct file *file, void *priv,
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
- strlcpy(cap->driver, VPIF_DRIVER_NAME, sizeof(cap->driver));
+ strscpy(cap->driver, VPIF_DRIVER_NAME, sizeof(cap->driver));
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
dev_name(vpif_dev));
- strlcpy(cap->card, config->card_name, sizeof(cap->card));
+ strscpy(cap->card, config->card_name, sizeof(cap->card));
return 0;
}
@@ -1463,7 +1465,7 @@ static int vpif_probe_complete(void)
/* Initialize the video_device structure */
vdev = &ch->video_dev;
- strlcpy(vdev->name, VPIF_DRIVER_NAME, sizeof(vdev->name));
+ strscpy(vdev->name, VPIF_DRIVER_NAME, sizeof(vdev->name));
vdev->release = video_device_release_empty;
vdev->fops = &vpif_fops;
vdev->ioctl_ops = &vpif_ioctl_ops;
@@ -1509,12 +1511,13 @@ static struct vpif_capture_config *
vpif_capture_get_pdata(struct platform_device *pdev)
{
struct device_node *endpoint = NULL;
- struct v4l2_fwnode_endpoint bus_cfg;
struct vpif_capture_config *pdata;
struct vpif_subdev_info *sdinfo;
struct vpif_capture_chan_config *chan;
unsigned int i;
+ v4l2_async_notifier_init(&vpif_obj.notifier);
+
/*
* DT boot: OF node from parent device contains
* video ports & endpoints data.
@@ -1537,6 +1540,7 @@ vpif_capture_get_pdata(struct platform_device *pdev)
return NULL;
for (i = 0; i < VPIF_CAPTURE_NUM_CHANNELS; i++) {
+ struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
struct device_node *rem;
unsigned int flags;
int err;
@@ -1546,14 +1550,25 @@ vpif_capture_get_pdata(struct platform_device *pdev)
if (!endpoint)
break;
+ rem = of_graph_get_remote_port_parent(endpoint);
+ if (!rem) {
+ dev_dbg(&pdev->dev, "Remote device at %pOF not found\n",
+ endpoint);
+ of_node_put(endpoint);
+ goto done;
+ }
+
sdinfo = &pdata->subdev_info[i];
chan = &pdata->chan_config[i];
chan->inputs = devm_kcalloc(&pdev->dev,
VPIF_CAPTURE_NUM_CHANNELS,
sizeof(*chan->inputs),
GFP_KERNEL);
- if (!chan->inputs)
- return NULL;
+ if (!chan->inputs) {
+ of_node_put(rem);
+ of_node_put(endpoint);
+ goto err_cleanup;
+ }
chan->input_count++;
chan->inputs[i].input.type = V4L2_INPUT_TYPE_CAMERA;
@@ -1562,12 +1577,16 @@ vpif_capture_get_pdata(struct platform_device *pdev)
err = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
&bus_cfg);
+ of_node_put(endpoint);
if (err) {
dev_err(&pdev->dev, "Could not parse the endpoint\n");
+ of_node_put(rem);
goto done;
}
+
dev_dbg(&pdev->dev, "Endpoint %pOF, bus_width = %d\n",
endpoint, bus_cfg.bus.parallel.bus_width);
+
flags = bus_cfg.bus.parallel.flags;
if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
@@ -1576,39 +1595,29 @@ vpif_capture_get_pdata(struct platform_device *pdev)
if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
chan->vpif_if.vd_pol = 1;
- rem = of_graph_get_remote_port_parent(endpoint);
- if (!rem) {
- dev_dbg(&pdev->dev, "Remote device at %pOF not found\n",
- endpoint);
- goto done;
- }
-
- dev_dbg(&pdev->dev, "Remote device %s, %pOF found\n",
- rem->name, rem);
+ dev_dbg(&pdev->dev, "Remote device %pOF found\n", rem);
sdinfo->name = rem->full_name;
- pdata->asd[i] = devm_kzalloc(&pdev->dev,
- sizeof(struct v4l2_async_subdev),
- GFP_KERNEL);
- if (!pdata->asd[i]) {
+ pdata->asd[i] = v4l2_async_notifier_add_fwnode_subdev(
+ &vpif_obj.notifier, of_fwnode_handle(rem),
+ sizeof(struct v4l2_async_subdev));
+ if (IS_ERR(pdata->asd[i])) {
of_node_put(rem);
- pdata = NULL;
- goto done;
+ goto err_cleanup;
}
-
- pdata->asd[i]->match_type = V4L2_ASYNC_MATCH_FWNODE;
- pdata->asd[i]->match.fwnode = of_fwnode_handle(rem);
- of_node_put(rem);
}
done:
- if (pdata) {
- pdata->asd_sizes[0] = i;
- pdata->subdev_count = i;
- pdata->card_name = "DA850/OMAP-L138 Video Capture";
- }
+ pdata->asd_sizes[0] = i;
+ pdata->subdev_count = i;
+ pdata->card_name = "DA850/OMAP-L138 Video Capture";
return pdata;
+
+err_cleanup:
+ v4l2_async_notifier_cleanup(&vpif_obj.notifier);
+
+ return NULL;
}
/**
@@ -1633,23 +1642,18 @@ static __init int vpif_probe(struct platform_device *pdev)
return -EINVAL;
}
- if (!pdev->dev.platform_data) {
- dev_warn(&pdev->dev, "Missing platform data. Giving up.\n");
- return -EINVAL;
- }
-
vpif_dev = &pdev->dev;
err = initialize_vpif();
if (err) {
v4l2_err(vpif_dev->driver, "Error initializing vpif\n");
- return err;
+ goto cleanup;
}
err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev);
if (err) {
v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n");
- return err;
+ goto cleanup;
}
while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) {
@@ -1698,8 +1702,6 @@ static __init int vpif_probe(struct platform_device *pdev)
}
vpif_probe_complete();
} else {
- vpif_obj.notifier.subdevs = vpif_obj.config->asd;
- vpif_obj.notifier.num_subdevs = vpif_obj.config->asd_sizes[0];
vpif_obj.notifier.ops = &vpif_async_ops;
err = v4l2_async_notifier_register(&vpif_obj.v4l2_dev,
&vpif_obj.notifier);
@@ -1717,6 +1719,8 @@ probe_subdev_out:
kfree(vpif_obj.sd);
vpif_unregister:
v4l2_device_unregister(&vpif_obj.v4l2_dev);
+cleanup:
+ v4l2_async_notifier_cleanup(&vpif_obj.notifier);
return err;
}
@@ -1732,6 +1736,8 @@ static int vpif_remove(struct platform_device *device)
struct channel_obj *ch;
int i;
+ v4l2_async_notifier_unregister(&vpif_obj.notifier);
+ v4l2_async_notifier_cleanup(&vpif_obj.notifier);
v4l2_device_unregister(&vpif_obj.v4l2_dev);
kfree(vpif_obj.sd);
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