[PATCH v4 0/3] Add Amlogic general DMA

[Xianwei Zhao via B4 Relay]

Add DMA driver and bindigns for the Amlogic SoCs.

Signed-off-by: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>
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Changes in v4:
- Support Split transfer when data len > MAX_LEN.
- When a module fails or exits, perform de-initialization.
- Some other minor modifications.
- Link to v3: https://lore.kernel.org/r/20260206-amlogic-dma-v3-0-56fb9f59ed22@xxxxxxxxxxx

Changes in v3:
- Adjust the format of binding according to Frank's suggestion.
- Some code format modified according to Frank's suggestion.
- Support one prep_sg and one submit, drop multi prep_sg and one submit.
- Keep pre state when resume from pause status.
- Link to v2: https://lore.kernel.org/r/20260127-amlogic-dma-v2-0-4525d327d74d@xxxxxxxxxxx

Changes in v2:
- Introduce what the DMA is used for in the A9 SoC.
- Some minor modifications were made according to Krzysztof's suggestions.
- Some modifications were made according to Neil's suggestions.
- Fix a build error.
- Link to v1: https://lore.kernel.org/r/20251216-amlogic-dma-v1-0-e289e57e96a7@xxxxxxxxxxx

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Xianwei Zhao (3):
      dt-bindings: dma: Add Amlogic A9 SoC DMA
      dma: amlogic: Add general DMA driver for A9
      MAINTAINERS: Add an entry for Amlogic DMA driver

 .../devicetree/bindings/dma/amlogic,a9-dma.yaml    |  65 +++
 MAINTAINERS                                        |   7 +
 drivers/dma/Kconfig                                |   9 +
 drivers/dma/Makefile                               |   1 +
 drivers/dma/amlogic-dma.c                          | 585 +++++++++++++++++++++
 include/dt-bindings/dma/amlogic-dma.h              |   8 +
 6 files changed, 675 insertions(+)
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base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20251215-amlogic-dma-79477d5cd264

Best regards,
-- 
Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx>