linux-kernel - [PATCH v3 0/1] Fix errors when reporting rotation capability

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Message-ID: <20231120071246.30823-1-shawn.sung@mediatek.com>
Date:   Mon, 20 Nov 2023 15:12:45 +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 v3 0/1] Fix errors when reporting rotation capability

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

This bug is 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 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       | 30 ++++++++++---------
 .../gpu/drm/mediatek/mtk_disp_ovl_adaptor.c   |  5 ++++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c   |  1 +
 drivers/gpu/drm/mediatek/mtk_drm_plane.c      |  2 +-
 5 files changed, 24 insertions(+), 15 deletions(-)

--
2.39.2