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| author | Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com> | 2025-12-05 17:22:26 +0300 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2025-12-30 18:54:09 +0300 |
| commit | 2788c969d89afb1e6ff66b8530584a634d1327dd (patch) | |
| tree | b59967ba294281bc341e538ce89e96fa9053848a /scripts/const_structs.checkpatch | |
| parent | 4e7fd55411faf6c1abfa2ddd1504713b2006d166 (diff) | |
| download | linux-2788c969d89afb1e6ff66b8530584a634d1327dd.tar.xz | |
drm/mediatek: mtk_hdmi_ddc_v2: Add transfer abort on timeout cases
During a read or write transfer, the mtk_hdmi_ddc_v2 driver polls the
DDC_I2C_IN_PROG bit of HPD_DDC_STATUS register to check if the transfer
completes but do no particular action if a timeout is reached. It could
lead the next transfer attempts to fail because the faulty transfer was
not aborted. So, add in both low level read and write functions a abort
action by writing the DDC_CTRL register with the ABORT_XFER command
value.
Fixes: 8d0f79886273 ("drm/mediatek: Introduce HDMI/DDC v2 for MT8195/MT8188")
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20251205-mtk-hdmi-ddc-v2-fixes-v1-1-260dd0d320f4@collabora.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Diffstat (limited to 'scripts/const_structs.checkpatch')
0 files changed, 0 insertions, 0 deletions