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media: stm32-dma2d: STM32 DMA2D driver

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This V4L2 subdev m2m driver enables Chrom-Art Accelerator unit
of STMicroelectronics STM32 SoC series.

Currently support r2m, m2m, m2m_pfc functions.
- r2m, Filling a part or the whole of a destination image with a specific
  color.
- m2m, Copying a part or the whole of a source image into a part or the
  whole of a destination.
- m2m_pfc, Copying a part or the whole of a source image into a part or the
  whole of a destination image with a pixel format conversion.

[hverkuil: fix typo in commit log]

Signed-off-by: Dillon Min <dillon.minfei@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Dillon Min 2021-10-19 09:43:23 +01:00 • committed by Mauro Carvalho Chehab
commit 002e8f0d59
7 changed files with 1144 additions and 0 deletions
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