Merge tag 'drm-misc-fixes-2026-04-30' of https://gitlab.freedesktop.org/drm/misc...

Short summary of fixes pull:

DRM core and helpers:
- calculate framebuffer geometry with format helpers
- fix docs

appletbdrm:
- allocate protocol buffers with kvzalloc()

dma-buf:
- fix docs

imagination:
- avoid segfault in debugfs

ofdrm:
- put PCI device reference on errors

udl:
- increase USB timeout

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/20260430064521.GA14957@linux.fritz.box