linux-kernel - [PATCH v2 0/5] drm/rockchip: Fix crtc duplicate state and crtc reset funcs

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Date:   Wed, 21 Jun 2023 22:33:15 +0000 (UTC)
From:   Jonas Karlman <jonas@...boo.se>
To:     Sandy Huang <hjc@...k-chips.com>, Heiko Stuebner <heiko@...ech.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Mark Yao <markyao0591@...il.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Andy Yan <andy.yan@...k-chips.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Jonas Karlman <jonas@...boo.se>
Subject: [PATCH v2 0/5] drm/rockchip: Fix crtc duplicate state and crtc reset
 funcs

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 null guard for allocation failure.
Patch 4 adds a crash guard for empty crtc state.
Patch 5 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.

Changes in v2:
- Handle possible allocation failure in crtc reset funcs
- Collect r-b tags

This series is also available at [1].

[1] https://github.com/Kwiboo/linux-rockchip/commits/next-20230621-duplicate-state

Jonas Karlman (5):
  drm/rockchip: vop: Fix reset of state in duplicate state crtc funcs
  drm/rockchip: vop: Use cleanup helper directly as destroy funcs
  drm/rockchip: vop: Fix call to crtc reset helper
  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  | 24 +++++-------
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 39 ++++++++++----------
 2 files changed, 28 insertions(+), 35 deletions(-)

-- 
2.41.0