drm: merge drm_usb into udl

This merges all the remains of drm_usb into its only user, udl. We can
then drop all the drm_usb stuff, including dev->usbdev.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

11 files changed, 70 insertions, 152 deletions

diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl
index 58ab4d32c86f..1fce7dc46d87 100644
--- a/Documentation/DocBook/drm.tmpl
+++ b/Documentation/DocBook/drm.tmpl
@@ -291,10 +291,9 @@ char *date;</synopsis>
       <title>Device Registration</title>
       <para>
         A number of functions are provided to help with device registration.
-        The functions deal with PCI, USB and platform devices, respectively.
+        The functions deal with PCI and platform devices, respectively.
       </para>
 !Edrivers/gpu/drm/drm_pci.c
-!Edrivers/gpu/drm/drm_usb.c
 !Edrivers/gpu/drm/drm_platform.c
       <para>
         New drivers that no longer rely on the services provided by the
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index e3500f9584ec..e3b4b0f02b3d 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -25,12 +25,6 @@ config DRM_MIPI_DSI
         bool
         depends on DRM
 
-config DRM_USB
-        tristate
-        depends on DRM
-        depends on USB_SUPPORT && USB_ARCH_HAS_HCD
-        select USB
-
 config DRM_KMS_HELPER
         tristate
         depends on DRM
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 9b7cb3f76f01..9292a761ea6d 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -22,8 +22,6 @@ drm-$(CONFIG_PCI) += ati_pcigart.o
 drm-$(CONFIG_DRM_PANEL) += drm_panel.o
 drm-$(CONFIG_OF) += drm_of.o
 
-drm-usb-y   := drm_usb.o
-
 drm_kms_helper-y := drm_crtc_helper.o drm_dp_helper.o drm_probe_helper.o \
                 drm_plane_helper.o drm_dp_mst_topology.o
 drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
@@ -36,7 +34,6 @@ CFLAGS_drm_trace_points.o := -I$(src)
 
 obj-$(CONFIG_DRM)       += drm.o
 obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o
-obj-$(CONFIG_DRM_USB)   += drm_usb.o
 obj-$(CONFIG_DRM_TTM)   += ttm/
 obj-$(CONFIG_DRM_TDFX)  += tdfx/
 obj-$(CONFIG_DRM_R128)  += r128/
diff --git a/drivers/gpu/drm/drm_usb.c b/drivers/gpu/drm/drm_usb.c
deleted file mode 100644
index 9c434905d37f..000000000000
--- a/drivers/gpu/drm/drm_usb.c
+++ /dev/null
@@ -1,76 +0,0 @@
-#include <drm/drmP.h>
-#include <drm/drm_usb.h>
-#include <linux/usb.h>
-#include <linux/module.h>
-
-int drm_get_usb_dev(struct usb_interface *interface,
-                    const struct usb_device_id *id,
-                    struct drm_driver *driver)
-{
-        struct drm_device *dev;
-        int ret;
-
-        DRM_DEBUG("\n");
-
-        dev = drm_dev_alloc(driver, &interface->dev);
-        if (!dev)
-                return -ENOMEM;
-
-        dev->usbdev = interface_to_usbdev(interface);
-        usb_set_intfdata(interface, dev);
-
-        ret = drm_dev_register(dev, 0);
-        if (ret)
-                goto err_free;
-
-        DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
-                 driver->name, driver->major, driver->minor, driver->patchlevel,
-                 driver->date, dev->primary->index);
-
-        return 0;
-
-err_free:
-        drm_dev_unref(dev);
-        return ret;
-
-}
-EXPORT_SYMBOL(drm_get_usb_dev);
-
-/**
- * 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");
-
-        res = usb_register(udriver);
-        return res;
-}
-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)
-{
-        usb_deregister(udriver);
-}
-EXPORT_SYMBOL(drm_usb_exit);
-
-MODULE_AUTHOR("David Airlie");
-MODULE_DESCRIPTION("USB DRM support");
-MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/gpu/drm/udl/Kconfig b/drivers/gpu/drm/udl/Kconfig
index f02528686cd5..613ab0622d6e 100644
--- a/drivers/gpu/drm/udl/Kconfig
+++ b/drivers/gpu/drm/udl/Kconfig
@@ -1,8 +1,9 @@
 config DRM_UDL
         tristate "DisplayLink"
         depends on DRM
+        depends on USB_SUPPORT
         depends on USB_ARCH_HAS_HCD
-        select DRM_USB
+        select USB
         select FB_SYS_FILLRECT
         select FB_SYS_COPYAREA
         select FB_SYS_IMAGEBLIT
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index e026a9e2942a..0110d95522f3 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -34,8 +34,8 @@ static u8 *udl_get_edid(struct udl_device *udl)
                 goto error;
 
         for (i = 0; i < EDID_LENGTH; i++) {
-                ret = usb_control_msg(udl->ddev->usbdev,
-                                      usb_rcvctrlpipe(udl->ddev->usbdev, 0), (0x02),
+                ret = usb_control_msg(udl->udev,
+                                      usb_rcvctrlpipe(udl->udev, 0), (0x02),
                                       (0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2,
                                       HZ);
                 if (ret < 1) {
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 06675e5d4342..8607e9e513db 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -7,55 +7,15 @@
  */
 
 #include <linux/module.h>
-#include <drm/drm_usb.h>
+#include <drm/drmP.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, .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);
-
-MODULE_LICENSE("GPL");
-
 static int udl_driver_set_busid(struct drm_device *d, struct drm_master *m)
 {
         return 0;
 }
 
-static int udl_usb_probe(struct usb_interface *interface,
-                         const struct usb_device_id *id)
-{
-        return drm_get_usb_dev(interface, id, &driver);
-}
-
-static void udl_usb_disconnect(struct usb_interface *interface)
-{
-        struct drm_device *dev = usb_get_intfdata(interface);
-
-        drm_kms_helper_poll_disable(dev);
-        drm_connector_unplug_all(dev);
-        udl_fbdev_unplug(dev);
-        udl_drop_usb(dev);
-        drm_unplug_dev(dev);
-}
-
 static const struct vm_operations_struct udl_gem_vm_ops = {
         .fault = udl_gem_fault,
         .open = drm_gem_vm_open,
@@ -102,6 +62,61 @@ static struct drm_driver driver = {
         .patchlevel = DRIVER_PATCHLEVEL,
 };
 
+static int udl_usb_probe(struct usb_interface *interface,
+                         const struct usb_device_id *id)
+{
+        struct usb_device *udev = interface_to_usbdev(interface);
+        struct drm_device *dev;
+        int r;
+
+        dev = drm_dev_alloc(&driver, &interface->dev);
+        if (!dev)
+                return -ENOMEM;
+
+        r = drm_dev_register(dev, (unsigned long)udev);
+        if (r)
+                goto err_free;
+
+        usb_set_intfdata(interface, dev);
+        DRM_INFO("Initialized udl on minor %d\n", dev->primary->index);
+
+        return 0;
+
+err_free:
+        drm_dev_unref(dev);
+        return r;
+}
+
+static void udl_usb_disconnect(struct usb_interface *interface)
+{
+        struct drm_device *dev = usb_get_intfdata(interface);
+
+        drm_kms_helper_poll_disable(dev);
+        drm_connector_unplug_all(dev);
+        udl_fbdev_unplug(dev);
+        udl_drop_usb(dev);
+        drm_unplug_dev(dev);
+}
+
+/*
+ * 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, .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);
+
 static struct usb_driver udl_driver = {
         .name = "udl",
         .probe = udl_usb_probe,
@@ -111,13 +126,14 @@ static struct usb_driver udl_driver = {
 
 static int __init udl_init(void)
 {
-        return drm_usb_init(&driver, &udl_driver);
+        return usb_register(&udl_driver);
 }
 
 static void __exit udl_exit(void)
 {
-        drm_usb_exit(&driver, &udl_driver);
+        usb_deregister(&udl_driver);
 }
 
 module_init(udl_init);
 module_exit(udl_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index 1fbf7b357f16..51e10ee77f39 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -47,6 +47,7 @@ struct udl_fbdev;
 struct udl_device {
         struct device *dev;
         struct drm_device *ddev;
+        struct usb_device *udev;
 
         int sku_pixel_limit;
 
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index 42795674bc07..33dbfb2c4748 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -202,7 +202,7 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
                 }
                 unode->urb = urb;
 
-                buf = usb_alloc_coherent(udl->ddev->usbdev, MAX_TRANSFER, GFP_KERNEL,
+                buf = usb_alloc_coherent(udl->udev, MAX_TRANSFER, GFP_KERNEL,
                                          &urb->transfer_dma);
                 if (!buf) {
                         kfree(unode);
@@ -211,7 +211,7 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
                 }
 
                 /* urb->transfer_buffer_length set to actual before submit */
-                usb_fill_bulk_urb(urb, udl->ddev->usbdev, usb_sndbulkpipe(udl->ddev->usbdev, 1),
+                usb_fill_bulk_urb(urb, udl->udev, usb_sndbulkpipe(udl->udev, 1),
                         buf, size, udl_urb_completion, unode);
                 urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
@@ -282,6 +282,7 @@ int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len)
 
 int udl_driver_load(struct drm_device *dev, unsigned long flags)
 {
+        struct usb_device *udev = (void*)flags;
         struct udl_device *udl;
         int ret = -ENOMEM;
 
@@ -290,10 +291,11 @@ int udl_driver_load(struct drm_device *dev, unsigned long flags)
         if (!udl)
                 return -ENOMEM;
 
+        udl->udev = udev;
         udl->ddev = dev;
         dev->dev_private = udl;
 
-        if (!udl_parse_vendor_descriptor(dev, dev->usbdev)) {
+        if (!udl_parse_vendor_descriptor(dev, udl->udev)) {
                 ret = -ENODEV;
                 DRM_ERROR("firmware not recognized. Assume incompatible device\n");
                 goto err;
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 5ae388a9bb98..0e73aad225b2 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1020,7 +1020,6 @@ struct drm_device {
 #endif
 
         struct platform_device *platformdev; /**< Platform device struture */
-        struct usb_device *usbdev;
 
         struct drm_sg_mem *sg;  /**< Scatter gather memory */
         unsigned int num_crtcs;                  /**< Number of CRTCs on this device */
diff --git a/include/drm/drm_usb.h b/include/drm/drm_usb.h
deleted file mode 100644
index 33506c11da8b..000000000000
--- a/include/drm/drm_usb.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef DRM_USB_H
-#define DRM_USB_H
-
-#include <drmP.h>
-
-#include <linux/usb.h>
-
-extern int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver);
-extern void drm_usb_exit(struct drm_driver *driver, struct usb_driver *udriver);
-
-int drm_get_usb_dev(struct usb_interface *interface,
-                    const struct usb_device_id *id,
-                    struct drm_driver *driver);
-
-#endif