Add the driver and dt-binding document for Loongson1 APB DMA.

Changes in v7:
- Change the comptible to 'loongson,ls1*-apbdma' (suggested by Huacai Chen)
- Update the title and description part accordingly
- Rename the file to loongson,ls1b-apbdma.yaml
- Add a compatible string for LS1A
- Delete minItems of 'interrupts'
- Change patterns of 'interrupt-names' to const
- Rename the file to loongson1-apb-dma.c to keep the consistency
- Update Kconfig and Makefile accordingly
- Link to v6: https://lore.kernel.org/r/20240316-loongson1-dma-v6-0-90de2c3cc928@gmail.com

Changes in v6:
- Change the compatible to the fallback
- Implement .device_prep_dma_cyclic for Loongson1 sound driver,
- as well as .device_pause and .device_resume.
- Set the limitation LS1X_DMA_MAX_DESC and put all descriptors
- into one page to save memory
- Move dma_pool_zalloc() into ls1x_dma_alloc_desc()
- Drop dma_slave_config structure
- Use .remove_new instead of .remove
- Use KBUILD_MODNAME for the driver name
- Improve the debug information
- Some minor fixes
- 
Changes in v5:
- Add the dt-binding document
- Add DT support
- Use DT information instead of platform data
- Use chan_id of struct dma_chan instead of own id
- Use of_dma_xlate_by_chan_id() instead of ls1x_dma_filter()
- Update the author information to my official name
- 
Changes in v4:
- Use dma_slave_map to find the proper channel.
- Explicitly call devm_request_irq() and tasklet_kill().
- Fix namespace issue.
- Some minor fixes and cleanups.
- 
Changes in v3:
- Rename ls1x_dma_filter_fn to ls1x_dma_filter.
- 
Changes in v2:
- Change the config from 'DMA_LOONGSON1' to 'LOONGSON1_DMA',
- and rearrange it in alphabetical order in Kconfig and Makefile.
- Fix comment style.

---
Keguang Zhang (2):
      dt-bindings: dma: Add Loongson-1 APB DMA
      dmaengine: Loongson1: Add Loongson-1 APB DMA driver

 .../bindings/dma/loongson,ls1b-apbdma.yaml         |  65 ++
 drivers/dma/Kconfig                                |   9 +
 drivers/dma/Makefile                               |   1 +
 drivers/dma/loongson1-apb-dma.c                    | 665 +++++++++++++++++++++
 4 files changed, 740 insertions(+)
---
base-commit: a6bd6c9333397f5a0e2667d4d82fef8c970108f2
change-id: 20231120-loongson1-dma-163afe5708b9

Best regards,
-- 
Keguang Zhang <keguang.zhang@gmail.com>

在 2024/3/29 11:26, Keguang Zhang via B4 Relay 写道:
> Add the driver and dt-binding document for Loongson1 APB DMA.


For the whole series:

Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>

Thanks!

>
> Changes in v7:
> - Change the comptible to 'loongson,ls1*-apbdma' (suggested by Huacai Chen)
> - Update the title and description part accordingly
> - Rename the file to loongson,ls1b-apbdma.yaml
> - Add a compatible string for LS1A
> - Delete minItems of 'interrupts'
> - Change patterns of 'interrupt-names' to const
> - Rename the file to loongson1-apb-dma.c to keep the consistency
> - Update Kconfig and Makefile accordingly
> - Link to v6: https://lore.kernel.org/r/20240316-loongson1-dma-v6-0-90de2c3cc928@gmail.com
>
> Changes in v6:
> - Change the compatible to the fallback
> - Implement .device_prep_dma_cyclic for Loongson1 sound driver,
> - as well as .device_pause and .device_resume.
> - Set the limitation LS1X_DMA_MAX_DESC and put all descriptors
> - into one page to save memory
> - Move dma_pool_zalloc() into ls1x_dma_alloc_desc()
> - Drop dma_slave_config structure
> - Use .remove_new instead of .remove
> - Use KBUILD_MODNAME for the driver name
> - Improve the debug information
> - Some minor fixes
> -
> Changes in v5:
> - Add the dt-binding document
> - Add DT support
> - Use DT information instead of platform data
> - Use chan_id of struct dma_chan instead of own id
> - Use of_dma_xlate_by_chan_id() instead of ls1x_dma_filter()
> - Update the author information to my official name
> -
> Changes in v4:
> - Use dma_slave_map to find the proper channel.
> - Explicitly call devm_request_irq() and tasklet_kill().
> - Fix namespace issue.
> - Some minor fixes and cleanups.
> -
> Changes in v3:
> - Rename ls1x_dma_filter_fn to ls1x_dma_filter.
> -
> Changes in v2:
> - Change the config from 'DMA_LOONGSON1' to 'LOONGSON1_DMA',
> - and rearrange it in alphabetical order in Kconfig and Makefile.
> - Fix comment style.
>
> ---
> Keguang Zhang (2):
>        dt-bindings: dma: Add Loongson-1 APB DMA
>        dmaengine: Loongson1: Add Loongson-1 APB DMA driver
>
>   .../bindings/dma/loongson,ls1b-apbdma.yaml         |  65 ++
>   drivers/dma/Kconfig                                |   9 +
>   drivers/dma/Makefile                               |   1 +
>   drivers/dma/loongson1-apb-dma.c                    | 665 +++++++++++++++++++++
>   4 files changed, 740 insertions(+)
> ---
> base-commit: a6bd6c9333397f5a0e2667d4d82fef8c970108f2
> change-id: 20231120-loongson1-dma-163afe5708b9
>
> Best regards,