linux-kernel - [PATCH drm-misc-next v3 0/5] drm/arm/malidp: use drm managed resources

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Message-Id: <20221026155934.125294-1-dakr@redhat.com>
Date:   Wed, 26 Oct 2022 17:59:29 +0200
From:   Danilo Krummrich <dakr@...hat.com>
To:     daniel@...ll.ch, airlied@...ux.ie, tzimmermann@...e.de,
        mripard@...nel.org, liviu.dudau@....com, brian.starkey@....com
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Danilo Krummrich <dakr@...hat.com>
Subject: [PATCH drm-misc-next v3 0/5] drm/arm/malidp: use drm managed resources

Hi,

This patch series converts the driver to use drm managed resources to prevent
potential use-after-free issues on driver unbind/rebind and to get rid of the
usage of deprecated APIs.

Changes in v2:
  - While protecting critical sections with drm_dev_{enter,exit} I forgot to
    handle alternate return paths within the read-side critical sections, hence
    fix them.
  - Add a patch to remove explicit calls to drm_mode_config_cleanup() and switch
    to drmm_mode_config_init() explicitly.

Changes in v3:
  - Remove patches to protect platform device bound resources with
    drm_dev_{enter,exit}, since this would leave the hardware enabled when
    regularly unloading the driver e.g. via rmmod.
    Instead do this in a later series, once we got drm_dev_unplug() in place
    to deal with a regular driver shutdown.

Danilo Krummrich (5):
  drm/arm/malidp: use drmm_* to allocate driver structures
  drm/arm/malidp: replace drm->dev_private with drm_to_malidp()
  drm/arm/malidp: crtc: use drmm_crtc_init_with_planes()
  drm/arm/malidp: plane: use drm managed resources
  drm/arm/malidp: remove calls to drm_mode_config_cleanup()

 drivers/gpu/drm/arm/malidp_crtc.c   |  7 ++-
 drivers/gpu/drm/arm/malidp_drv.c    | 69 +++++++++++------------------
 drivers/gpu/drm/arm/malidp_drv.h    |  2 +
 drivers/gpu/drm/arm/malidp_hw.c     | 10 ++---
 drivers/gpu/drm/arm/malidp_mw.c     |  6 +--
 drivers/gpu/drm/arm/malidp_planes.c | 32 ++++---------
 6 files changed, 48 insertions(+), 78 deletions(-)


base-commit: e1e7bc481d49c3e3ada11029ce0d9b85a0a539d7
-- 
2.37.3