media: mediatek: vcodec: Read HW active status from syscon

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Remove the requirement of a VDEC_SYS reg iospace for both MT8173 and
MT8183. To achieve that, rely on a vdecsys syscon to be passed through
the DT, and use it to directly read the VDEC_HW_ACTIVE bit during IRQ
handling to check whether the HW is active. Also update the VP8 stateful
decoder to use the syscon, if present, for writes to VDEC_SYS.

The old behavior is still present when reg-names aren't supplied, as
to keep backward compatibility.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: added vdecsys_regmap kerneldoc line provided by Nicolas]

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This commit is contained in:

Nícolas F. R. A. Prado 2023-06-30 11:14:11 -04:00 • committed by Hans Verkuil

parent c332621712

commit fe8a339783

5 changed files with 88 additions and 18 deletions

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77

drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec_drv.c

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2

drivers/media/platform/mediatek/vcodec/mtk_vcodec_drv.h

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15

drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.c

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2

drivers/media/platform/mediatek/vcodec/mtk_vcodec_util.h

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10

drivers/media/platform/mediatek/vcodec/vdec/vdec_vp8_if.c

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