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Author SHA1 Message Date
Dillon Min
147907e932 media: stm32-dma2d: fix compile errors when W=1
remove unused functions to avoid compile errors when W=1.

>> drivers/media/platform/stm32/dma2d/dma2d-hw.c:29:20:
	error: unused function 'reg_set' [-Werror,-Wunused-function]
	static inline void reg_set(void __iomem *base, u32 reg, u32 mask)

>> drivers/media/platform/stm32/dma2d/dma2d-hw.c:34:20:
	error: unused function 'reg_clear' [-Werror,-Wunused-function]
	static inline void reg_clear(void __iomem *base, u32 reg, u32 mask)

Fixes: bff6e3e2f4c9 ("media: stm32-dma2d: STM32 DMA2D driver")
Reported-by: kernel test robot <lkp@intel.com>
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>
2021-11-15 08:12:05 +00:00
Dillon Min
002e8f0d59 media: stm32-dma2d: STM32 DMA2D driver
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>
2021-11-15 08:11:33 +00:00