Merge tag 'exynos-drm-next-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel...

New feature and cleanup for Exynos fbdev
- Move fbdev emulation to DRM client buffers
  . Reuses standard ADDFB2/GEM paths and simplifies cleanup.
- Use DRM format helpers for geometry and size
  . Applies 4CC-based format/pitch/size calculation with stronger checks and PAGE_SIZE alignment.
  . Sets screen_size and fix.smem_len from actual allocated size.

Exynos DRM internal cleanup
- Adopt DRM core DMA tracking and drop redundant code
  . Removes private DMA tracking, exynos_drm_gem_prime_import(), and obsolete iommu_dma_init_domain() stub.
- Reduce duplication and tighten local scope
  . Replaces MAX_FB_BUFFER with DRM_FORMAT_MAX_PLANES.
  . Drops redundant exynos_drm_gem.size and internalizes local-only helpers.

Bug fix for Exynos fbdev behavior
- Fix screen_buffer offset handling
  . Keeps screen_buffer at framebuffer base and avoids applying scanout offset.
  . Includes Fixes and stable Cc for backporting.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patch.msgid.link/20260521143624.56906-1-inki.dae@samsung.com