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[media] vpif_display: first init subdevs, then register device nodes 

When device nodes are registered they must be ready for use
immediately, so make sure the subdevs are loaded first.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Tested-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2012-09-20 09:06:27 -03:00 committed by Mauro Carvalho Chehab
parent b65814e546
commit e6067f8b1e
1 changed files with 29 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
drivers/media/platform/davinci/vpif_display.c
View File

@ -1690,6 +1690,32 @@ static __init int vpif_probe(struct platform_device *pdev)
}
}
i2c_adap = i2c_get_adapter(1);
config = pdev->dev.platform_data;
subdev_count = config->subdev_count;
subdevdata = config->subdevinfo;
vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count,
GFP_KERNEL);
if (vpif_obj.sd == NULL) {
vpif_err("unable to allocate memory for subdevice pointers\n");
err = -ENOMEM;
goto vpif_int_err;
}
for (i = 0; i < subdev_count; i++) {
vpif_obj.sd[i] = v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
i2c_adap,
&subdevdata[i].board_info,
NULL);
if (!vpif_obj.sd[i]) {
vpif_err("Error registering v4l2 subdevice\n");
goto probe_subdev_out;
}
if (vpif_obj.sd[i])
vpif_obj.sd[i]->grp_id = 1 << i;
}
for (j = 0; j < VPIF_DISPLAY_MAX_DEVICES; j++) {
ch = vpif_obj.dev[j];
/* Initialize field of the channel objects */
@ -1725,6 +1751,7 @@ static __init int vpif_probe(struct platform_device *pdev)
ch->common[VPIF_VIDEO_INDEX].fmt.type =
V4L2_BUF_TYPE_VIDEO_OUTPUT;
ch->video_dev->lock = &common->lock;
video_set_drvdata(ch->video_dev, ch);
/* register video device */
vpif_dbg(1, debug, "channel=%x,channel->video_dev=%x\n",
@ -1734,42 +1761,12 @@ static __init int vpif_probe(struct platform_device *pdev)
VFL_TYPE_GRABBER, (j ? 3 : 2));
if (err < 0)
goto probe_out;
video_set_drvdata(ch->video_dev, ch);
}
i2c_adap = i2c_get_adapter(1);
config = pdev->dev.platform_data;
subdev_count = config->subdev_count;
subdevdata = config->subdevinfo;
vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count,
GFP_KERNEL);
if (vpif_obj.sd == NULL) {
vpif_err("unable to allocate memory for subdevice pointers\n");
err = -ENOMEM;
goto probe_out;
}
for (i = 0; i < subdev_count; i++) {
vpif_obj.sd[i] = v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
i2c_adap,
&subdevdata[i].board_info,
NULL);
if (!vpif_obj.sd[i]) {
vpif_err("Error registering v4l2 subdevice\n");
goto probe_subdev_out;
}
if (vpif_obj.sd[i])
vpif_obj.sd[i]->grp_id = 1 << i;
}
v4l2_info(&vpif_obj.v4l2_dev,
" VPIF display driver initialized\n");
return 0;
probe_subdev_out:
kfree(vpif_obj.sd);
probe_out:
for (k = 0; k < j; k++) {
ch = vpif_obj.dev[k];
@ -1777,6 +1774,8 @@ probe_out:
video_device_release(ch->video_dev);
ch->video_dev = NULL;
}
probe_subdev_out:
kfree(vpif_obj.sd);
vpif_int_err:
v4l2_device_unregister(&vpif_obj.v4l2_dev);
vpif_err("VPIF IRQ request failed\n");