[0/9] drm: rcar-du: Fix LVDS-related crash

Message

Laurent Pinchart Dec. 4, 2020, 10:01 p.m. UTC

Hello,

This patch series fixes a crash in the LVDS encoder on D3 and E3 SoCs.
See patch 1/9 for details. The next patches are additional cleanups.

Patches 4/9 to 6/9 fix incorrect usage of the devm_* API. They could be
made simpler by using the proposed drmm_* allocators for encoders and
planes ([1]), but those haven't landed yet. Not depending on them also
helps backporting those fixes to stable kernels. I will switch to the
new helpers when they will be available.

[1] https://lore.kernel.org/dri-devel/[e-mail]/

Laurent Pinchart (9):
  drm: rcar-du: Fix crash when using LVDS1 clock for CRTC
  drm: rcar-du: Release vsp device reference in all error paths
  drm: rcar-du: Drop unneeded encoder cleanup in error path
  drm: rcar-du: Use DRM-managed allocation for VSP planes
  drm: rcar-du: Use DRM-managed allocation for encoders
  drm: rcar-du: Embed drm_device in rcar_du_device
  drm: rcar-du: Replace dev_private with container_of
  drm: rcar-du: Skip encoder allocation for LVDS1 in dual-link mode
  drm: rcar-du: Drop local encoder variable

 drivers/gpu/drm/rcar-du/rcar_du_crtc.c      | 12 +--
 drivers/gpu/drm/rcar-du/rcar_du_drv.c       | 33 +++----
 drivers/gpu/drm/rcar-du/rcar_du_drv.h       | 13 ++-
 drivers/gpu/drm/rcar-du/rcar_du_encoder.c   | 95 +++++++++++----------
 drivers/gpu/drm/rcar-du/rcar_du_encoder.h   |  2 -
 drivers/gpu/drm/rcar-du/rcar_du_kms.c       | 12 +--
 drivers/gpu/drm/rcar-du/rcar_du_plane.c     |  8 +-
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c       | 28 ++++--
 drivers/gpu/drm/rcar-du/rcar_du_writeback.c |  2 +-
 9 files changed, 107 insertions(+), 98 deletions(-)