Merge tag 'drm-misc-next-2022-09-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 6.1:

UAPI Changes:

Cross-subsystem Changes:
  - dma-buf: Improve signaling when debugging

Core Changes:
  - Backlight handling improvements
  - format-helper: Add drm_fb_build_fourcc_list()
  - fourcc: Kunit tests improvements
  - modes: Add DRM_MODE_INIT() macro
  - plane: Remove drm_plane_init(), Allocate planes with drm_universal_plane_alloc()
  - plane-helper: Add drm_plane_helper_atomic_check()
  - probe-helper: Add drm_connector_helper_get_modes_fixed() and
    drm_crtc_helper_mode_valid_fixed()
  - tests: Conversion to parametrized tests, test name consistency

Driver Changes:
  - amdgpu: Fix for a VRAM eviction issue
  - ast: Resolution handling improvements
  - mediatek: small code improvements for DP
  - omap: Refcounting fix, small improvements
  - rockchip: RK3568 support, Gamma support for RK3399
  - sun4i: Build failure fix when !OF
  - udl: Multiple fixes here and there
  - vc4: HDMI hotplug handling improvements
  - vkms: Warning fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220923073943.d43tne5hni3iknlv@houat

1 files changed, 18 insertions, 1 deletions

diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index 5703277c6f52..91effdcefb6d 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -21,8 +21,14 @@ static int udl_usb_suspend(struct usb_interface *interface,
 			   pm_message_t message)
 {
 	struct drm_device *dev = usb_get_intfdata(interface);
+	int ret;
 
-	return drm_mode_config_helper_suspend(dev);
+	ret = drm_mode_config_helper_suspend(dev);
+	if (ret)
+		return ret;
+
+	udl_sync_pending_urbs(dev);
+	return 0;
 }
 
 static int udl_usb_resume(struct usb_interface *interface)
@@ -32,6 +38,16 @@ static int udl_usb_resume(struct usb_interface *interface)
 	return drm_mode_config_helper_resume(dev);
 }
 
+static int udl_usb_reset_resume(struct usb_interface *interface)
+{
+	struct drm_device *dev = usb_get_intfdata(interface);
+	struct udl_device *udl = to_udl(dev);
+
+	udl_select_std_channel(udl);
+
+	return drm_mode_config_helper_resume(dev);
+}
+
 /*
  * FIXME: Dma-buf sharing requires DMA support by the importing device.
  *        This function is a workaround to make USB devices work as well.
@@ -140,6 +156,7 @@ static struct usb_driver udl_driver = {
 	.disconnect = udl_usb_disconnect,
 	.suspend = udl_usb_suspend,
 	.resume = udl_usb_resume,
+	.reset_resume = udl_usb_reset_resume,
 	.id_table = id_table,
 };
 module_usb_driver(udl_driver);