linux-kernel - [PATCH v4 0/1] Fix errors when reporting rotation capability

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231124100052.18599-1-shawn.sung@mediatek.com>
Date:   Fri, 24 Nov 2023 18:00:51 +0800
From:   Hsiao Chien Sung <shawn.sung@...iatek.com>
To:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
CC:     Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Paul <seanpaul@...omium.org>, CK Hu <ck.hu@...iatek.com>,
        <dri-devel@...ts.freedesktop.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Hsiao Chien Sung <shawn.sung@...iatek.com>
Subject: [PATCH v4 0/1] Fix errors when reporting rotation capability

This commit is based on 20231024130048.14749-1-shawn.sung@...iatek.com.

This bug was found when running IGT tests.
For CRTCs that doesn't support rotation should still return
DRM_MODE_ROTATE_0, otherwise the test will fail to restart.
Returns the hardware capabilities accordingly.

Changes in v4:
- Remove rotation property from the driver data since
  OVL rotation property for all chips are the same

Changes in v3:
- Return 0 (not support) if rotation capabilities is not defined
  in the driver data.

Changes in v2:
- Restore DRM_MODE_ROTATE_180 (reflect x + reflect y = rotate 180)
- Define supported rotations in the driver data

Hsiao Chien Sung (1):
  drm/mediatek: Fix errors when reporting rotation capability

 drivers/gpu/drm/mediatek/mtk_disp_drv.h        |  1 +
 drivers/gpu/drm/mediatek/mtk_disp_ovl.c        | 18 ++++++------------
 .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c    |  9 +++++++++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c    |  1 +
 drivers/gpu/drm/mediatek/mtk_drm_plane.c       |  2 +-
 5 files changed, 18 insertions(+), 13 deletions(-)

--
2.39.2