diff options
Diffstat (limited to 'drivers/gpu/drm/udl/udl_drv.c')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_drv.c | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c index 53673907a6a..3ddd6cd98ac 100644 --- a/drivers/gpu/drm/udl/udl_drv.c +++ b/drivers/gpu/drm/udl/udl_drv.c @@ -7,14 +7,27 @@ */ #include <linux/module.h> -#include "drm_usb.h" -#include "drm_crtc_helper.h" +#include <drm/drm_usb.h> +#include <drm/drm_crtc_helper.h> #include "udl_drv.h" static struct drm_driver driver; +/* + * There are many DisplayLink-based graphics products, all with unique PIDs. + * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff) + * We also require a match on SubClass (0x00) and Protocol (0x00), + * which is compatible with all known USB 2.0 era graphics chips and firmware, + * but allows DisplayLink to increment those for any future incompatible chips + */ static struct usb_device_id id_table[] = { - {.idVendor = 0x17e9, .match_flags = USB_DEVICE_ID_MATCH_VENDOR,}, + {.idVendor = 0x17e9, .bInterfaceClass = 0xff, + .bInterfaceSubClass = 0x00, + .bInterfaceProtocol = 0x00, + .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_INT_CLASS | + USB_DEVICE_ID_MATCH_INT_SUBCLASS | + USB_DEVICE_ID_MATCH_INT_PROTOCOL,}, {}, }; MODULE_DEVICE_TABLE(usb, id_table); @@ -38,7 +51,7 @@ static void udl_usb_disconnect(struct usb_interface *interface) drm_unplug_dev(dev); } -static struct vm_operations_struct udl_gem_vm_ops = { +static const struct vm_operations_struct udl_gem_vm_ops = { .fault = udl_gem_fault, .open = drm_gem_vm_open, .close = drm_gem_vm_close, @@ -52,24 +65,29 @@ static const struct file_operations udl_driver_fops = { .read = drm_read, .unlocked_ioctl = drm_ioctl, .release = drm_release, - .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = drm_compat_ioctl, +#endif .llseek = noop_llseek, }; static struct drm_driver driver = { - .driver_features = DRIVER_MODESET | DRIVER_GEM, + .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, .load = udl_driver_load, .unload = udl_driver_unload, /* gem hooks */ - .gem_init_object = udl_gem_init_object, .gem_free_object = udl_gem_free_object, .gem_vm_ops = &udl_gem_vm_ops, .dumb_create = udl_dumb_create, .dumb_map_offset = udl_gem_mmap, - .dumb_destroy = udl_dumb_destroy, + .dumb_destroy = drm_gem_dumb_destroy, .fops = &udl_driver_fops, + + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, + .gem_prime_import = udl_gem_prime_import, + .name = DRIVER_NAME, .desc = DRIVER_DESC, .date = DRIVER_DATE, |