diff options
Diffstat (limited to 'drivers/gpu/drm/drm_usb.c')
| -rw-r--r-- | drivers/gpu/drm/drm_usb.c | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/drivers/gpu/drm/drm_usb.c b/drivers/gpu/drm/drm_usb.c index b179b70e785..f2fe94aab90 100644 --- a/drivers/gpu/drm/drm_usb.c +++ b/drivers/gpu/drm/drm_usb.c @@ -1,4 +1,5 @@ #include <drm/drmP.h> +#include <drm/drm_usb.h> #include <linux/usb.h> #include <linux/module.h> @@ -29,22 +30,12 @@ int drm_get_usb_dev(struct usb_interface *interface, return 0; err_free: - drm_dev_free(dev); + drm_dev_unref(dev); return ret; } EXPORT_SYMBOL(drm_get_usb_dev); -static int drm_usb_get_irq(struct drm_device *dev) -{ - return 0; -} - -static const char *drm_usb_get_name(struct drm_device *dev) -{ - return "USB"; -} - static int drm_usb_set_busid(struct drm_device *dev, struct drm_master *master) { @@ -52,19 +43,24 @@ static int drm_usb_set_busid(struct drm_device *dev, } static struct drm_bus drm_usb_bus = { - .bus_type = DRIVER_BUS_USB, - .get_irq = drm_usb_get_irq, - .get_name = drm_usb_get_name, .set_busid = drm_usb_set_busid, }; - + +/** + * drm_usb_init - Register matching USB devices with the DRM subsystem + * @driver: DRM device driver + * @udriver: USB device driver + * + * Registers one or more devices matched by a USB driver with the DRM + * subsystem. + * + * Return: 0 on success or a negative error code on failure. + */ int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver) { int res; DRM_DEBUG("\n"); - INIT_LIST_HEAD(&driver->device_list); - driver->kdriver.usb = udriver; driver->bus = &drm_usb_bus; res = usb_register(udriver); @@ -72,6 +68,14 @@ int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver) } EXPORT_SYMBOL(drm_usb_init); +/** + * drm_usb_exit - Unregister matching USB devices from the DRM subsystem + * @driver: DRM device driver + * @udriver: USB device driver + * + * Unregisters one or more devices matched by a USB driver from the DRM + * subsystem. + */ void drm_usb_exit(struct drm_driver *driver, struct usb_driver *udriver) { |