[0/4] drm/rockchip: Fix crtc duplicate state and crtc reset funcs

Message

Jonas Karlman June 20, 2023, 6:47 a.m. UTC

This series fixes a reset of state in duplicate state crtc funcs for VOP
driver, a possible crash and ensure crtc reset helper is called in VOP2
driver.

Patch 1 use kmemdup instead of kzalloc to duplicate the crtc state.
Patch 2 change to use crtc and plane cleanup helpers directly.
Patch 3 adds a crash guard for empty crtc state.
Patch 4 adds a missing call to crtc reset helper.

This is the next part of an ongoing effort to upstream HDMI 2.0 support
used in LibreELEC for the past 3+ years.

This series is also available at [1].

[1] https://github.com/Kwiboo/linux-rockchip/commits/next-20230619-duplicate-state

Jonas Karlman (4):
  drm/rockchip: vop: Fix crtc duplicate state
  drm/rockchip: vop: User cleanup helpers directly as destroy ops
  drm/rockchip: vop2: Don't crash for invalid duplicate_state
  drm/rockchip: vop2: Add missing call to crtc reset helper

 drivers/gpu/drm/rockchip/rockchip_drm_vop.c  | 19 +++--------
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 36 +++++++++-----------
 2 files changed, 21 insertions(+), 34 deletions(-)