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drm/udl: Retrieve USB device from struct drm_device.dev
Drop the driver's udev field in favor of struct drm_device.dev. No functional changes made. v3: * upcast dev with udl_to_usb_device() v2: * upcast dev with drm_dev_get_usb_device() Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20201103113456.3066-3-tzimmermann@suse.de
This commit is contained in:
parent
0454bc59be
commit
3fb91f56ae
4 changed files with 21 additions and 19 deletions
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@ -20,6 +20,7 @@ static int udl_get_edid_block(void *data, u8 *buf, unsigned int block,
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int ret, i;
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u8 *read_buff;
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struct udl_device *udl = data;
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struct usb_device *udev = udl_to_usb_device(udl);
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read_buff = kmalloc(2, GFP_KERNEL);
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if (!read_buff)
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@ -27,10 +28,9 @@ static int udl_get_edid_block(void *data, u8 *buf, unsigned int block,
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for (i = 0; i < len; i++) {
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int bval = (i + block * EDID_LENGTH) << 8;
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ret = usb_control_msg(udl->udev,
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usb_rcvctrlpipe(udl->udev, 0),
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(0x02), (0x80 | (0x02 << 5)), bval,
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0xA1, read_buff, 2, HZ);
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ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
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0x02, (0x80 | (0x02 << 5)), bval,
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0xA1, read_buff, 2, HZ);
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if (ret < 1) {
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DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret);
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kfree(read_buff);
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@ -53,7 +53,6 @@ static const struct drm_driver driver = {
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static struct udl_device *udl_driver_create(struct usb_interface *interface)
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{
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struct usb_device *udev = interface_to_usbdev(interface);
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struct udl_device *udl;
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int r;
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@ -62,8 +61,6 @@ static struct udl_device *udl_driver_create(struct usb_interface *interface)
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if (IS_ERR(udl))
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return udl;
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udl->udev = udev;
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r = udl_init(udl);
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if (r)
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return ERR_PTR(r);
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@ -50,7 +50,6 @@ struct urb_list {
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struct udl_device {
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struct drm_device drm;
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struct device *dev;
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struct usb_device *udev;
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struct drm_simple_display_pipe display_pipe;
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@ -66,6 +65,11 @@ struct udl_device {
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#define to_udl(x) container_of(x, struct udl_device, drm)
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static inline struct usb_device *udl_to_usb_device(struct udl_device *udl)
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{
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return interface_to_usbdev(to_usb_interface(udl->drm.dev));
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}
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/* modeset */
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int udl_modeset_init(struct drm_device *dev);
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struct drm_connector *udl_connector_init(struct drm_device *dev);
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@ -26,10 +26,9 @@
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#define GET_URB_TIMEOUT HZ
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#define FREE_URB_TIMEOUT (HZ*2)
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static int udl_parse_vendor_descriptor(struct drm_device *dev,
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struct usb_device *usbdev)
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static int udl_parse_vendor_descriptor(struct udl_device *udl)
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{
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struct udl_device *udl = to_udl(dev);
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struct usb_device *udev = udl_to_usb_device(udl);
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char *desc;
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char *buf;
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char *desc_end;
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@ -41,7 +40,7 @@ static int udl_parse_vendor_descriptor(struct drm_device *dev,
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return false;
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desc = buf;
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total_len = usb_get_descriptor(usbdev, 0x5f, /* vendor specific */
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total_len = usb_get_descriptor(udev, 0x5f, /* vendor specific */
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0, desc, MAX_VENDOR_DESCRIPTOR_SIZE);
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if (total_len > 5) {
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DRM_INFO("vendor descriptor length:%x data:%11ph\n",
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@ -98,19 +97,20 @@ static int udl_parse_vendor_descriptor(struct drm_device *dev,
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*/
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static int udl_select_std_channel(struct udl_device *udl)
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{
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int ret;
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static const u8 set_def_chn[] = {0x57, 0xCD, 0xDC, 0xA7,
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0x1C, 0x88, 0x5E, 0x15,
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0x60, 0xFE, 0xC6, 0x97,
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0x16, 0x3D, 0x47, 0xF2};
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void *sendbuf;
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int ret;
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struct usb_device *udev = udl_to_usb_device(udl);
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sendbuf = kmemdup(set_def_chn, sizeof(set_def_chn), GFP_KERNEL);
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if (!sendbuf)
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return -ENOMEM;
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ret = usb_control_msg(udl->udev,
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usb_sndctrlpipe(udl->udev, 0),
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ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
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NR_USB_REQUEST_CHANNEL,
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(USB_DIR_OUT | USB_TYPE_VENDOR), 0, 0,
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sendbuf, sizeof(set_def_chn),
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@ -202,6 +202,7 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
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struct urb_node *unode;
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char *buf;
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size_t wanted_size = count * size;
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struct usb_device *udev = udl_to_usb_device(udl);
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spin_lock_init(&udl->urbs.lock);
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@ -229,7 +230,7 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
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}
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unode->urb = urb;
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buf = usb_alloc_coherent(udl->udev, size, GFP_KERNEL,
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buf = usb_alloc_coherent(udev, size, GFP_KERNEL,
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&urb->transfer_dma);
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if (!buf) {
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kfree(unode);
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@ -243,8 +244,8 @@ static int udl_alloc_urb_list(struct drm_device *dev, int count, size_t size)
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}
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/* urb->transfer_buffer_length set to actual before submit */
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usb_fill_bulk_urb(urb, udl->udev, usb_sndbulkpipe(udl->udev, 1),
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buf, size, udl_urb_completion, unode);
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usb_fill_bulk_urb(urb, udev, usb_sndbulkpipe(udev, 1),
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buf, size, udl_urb_completion, unode);
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urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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list_add_tail(&unode->entry, &udl->urbs.list);
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@ -316,7 +317,7 @@ int udl_init(struct udl_device *udl)
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mutex_init(&udl->gem_lock);
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if (!udl_parse_vendor_descriptor(dev, udl->udev)) {
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if (!udl_parse_vendor_descriptor(udl)) {
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ret = -ENODEV;
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DRM_ERROR("firmware not recognized. Assume incompatible device\n");
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goto err;
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