diff options
| -rw-r--r-- | drivers/media/video/soc_camera.c | 71 | ||||
| -rw-r--r-- | include/media/soc_camera.h | 5 |
2 files changed, 71 insertions, 5 deletions
diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index 2d341f5..2014e9e 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -16,19 +16,21 @@ * published by the Free Software Foundation. */ -#include <linux/module.h> -#include <linux/init.h> #include <linux/device.h> -#include <linux/list.h> #include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/module.h> #include <linux/mutex.h> +#include <linux/platform_device.h> #include <linux/vmalloc.h> +#include <media/soc_camera.h> #include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> #include <media/v4l2-dev.h> +#include <media/v4l2-ioctl.h> #include <media/videobuf-core.h> -#include <media/soc_camera.h> /* Default to VGA resolution */ #define DEFAULT_WIDTH 640 @@ -1159,6 +1161,57 @@ void soc_camera_video_stop(struct soc_camera_device *icd) } EXPORT_SYMBOL(soc_camera_video_stop); +static int __devinit soc_camera_pdrv_probe(struct platform_device *pdev) +{ + struct soc_camera_link *icl = pdev->dev.platform_data; + struct i2c_adapter *adap; + struct i2c_client *client; + + if (!icl) + return -EINVAL; + + adap = i2c_get_adapter(icl->i2c_adapter_id); + if (!adap) { + dev_warn(&pdev->dev, "Cannot get adapter #%d. No driver?\n", + icl->i2c_adapter_id); + /* -ENODEV and -ENXIO do not produce an error on probe()... */ + return -ENOENT; + } + + icl->board_info->platform_data = icl; + client = i2c_new_device(adap, icl->board_info); + if (!client) { + i2c_put_adapter(adap); + return -ENOMEM; + } + + platform_set_drvdata(pdev, client); + + return 0; +} + +static int __devexit soc_camera_pdrv_remove(struct platform_device *pdev) +{ + struct i2c_client *client = platform_get_drvdata(pdev); + + if (!client) + return -ENODEV; + + i2c_unregister_device(client); + i2c_put_adapter(client->adapter); + + return 0; +} + +static struct platform_driver __refdata soc_camera_pdrv = { + .probe = soc_camera_pdrv_probe, + .remove = __exit_p(soc_camera_pdrv_remove), + .driver = { + .name = "soc-camera-pdrv", + .owner = THIS_MODULE, + }, +}; + static int __init soc_camera_init(void) { int ret = bus_register(&soc_camera_bus_type); @@ -1168,8 +1221,14 @@ static int __init soc_camera_init(void) if (ret) goto edrvr; + ret = platform_driver_register(&soc_camera_pdrv); + if (ret) + goto epdr; + return 0; +epdr: + driver_unregister(&ic_drv); edrvr: bus_unregister(&soc_camera_bus_type); return ret; @@ -1177,6 +1236,7 @@ edrvr: static void __exit soc_camera_exit(void) { + platform_driver_unregister(&soc_camera_pdrv); driver_unregister(&ic_drv); bus_unregister(&soc_camera_bus_type); } @@ -1187,3 +1247,4 @@ module_exit(soc_camera_exit); MODULE_DESCRIPTION("Image capture bus driver"); MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:soc-camera-pdrv"); diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index bef5e81..23ecead 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -92,11 +92,16 @@ struct soc_camera_host_ops { #define SOCAM_SENSOR_INVERT_VSYNC (1 << 3) #define SOCAM_SENSOR_INVERT_DATA (1 << 4) +struct i2c_board_info; + struct soc_camera_link { /* Camera bus id, used to match a camera and a bus */ int bus_id; /* Per camera SOCAM_SENSOR_* bus flags */ unsigned long flags; + int i2c_adapter_id; + struct i2c_board_info *board_info; + const char *module_name; /* Optional callbacks to power on or off and reset the sensor */ int (*power)(struct device *, int); int (*reset)(struct device *); |