diff options
| -rw-r--r-- | include/media/media-device.h | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/include/media/media-device.h b/include/media/media-device.h index bc015d2cf541..f0baee6771ef 100644 --- a/include/media/media-device.h +++ b/include/media/media-device.h @@ -13,12 +13,13 @@ #include <linux/list.h> #include <linux/mutex.h> +#include <linux/pci.h> +#include <linux/platform_device.h> #include <media/media-devnode.h> #include <media/media-entity.h> struct ida; -struct device; struct media_device; /** @@ -181,8 +182,7 @@ struct media_device { atomic_t request_id; }; -/* We don't need to include pci.h or usb.h here */ -struct pci_dev; +/* We don't need to include usb.h here */ struct usb_device; #ifdef CONFIG_MEDIA_CONTROLLER @@ -502,4 +502,27 @@ static inline void __media_device_usb_init(struct media_device *mdev, #define media_device_usb_init(mdev, udev, name) \ __media_device_usb_init(mdev, udev, name, KBUILD_MODNAME) +/** + * media_set_bus_info() - Set bus_info field + * + * @bus_info: Variable where to write the bus info (char array) + * @bus_info_size: Length of the bus_info + * @dev: Related struct device + * + * Sets bus information based on &dev. This is currently done for PCI and + * platform devices. dev is required to be non-NULL for this to happen. + * + * This function is not meant to be called from drivers. + */ +static inline void +media_set_bus_info(char *bus_info, size_t bus_info_size, struct device *dev) +{ + if (!dev) + strscpy(bus_info, "no bus info", bus_info_size); + else if (dev_is_platform(dev)) + snprintf(bus_info, bus_info_size, "platform:%s", dev_name(dev)); + else if (dev_is_pci(dev)) + snprintf(bus_info, bus_info_size, "PCI:%s", dev_name(dev)); +} + #endif |