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[v6,0/2] New driver for the Loongson LS2X APB DMA Controller

Message ID cover.1702365725.git.zhoubinbin@loongson.cn
Headers show
Series New driver for the Loongson LS2X APB DMA Controller | expand

Message

Binbin Zhou Dec. 18, 2023, 1:56 a.m. UTC 
Hi all:

This patchset introduces you to the LS2X apbdma controller.

The Loongson LS2X APB DMA controller is available on Loongson-2K chips.
It is a single-channel, configurable DMA controller IP core based on the
AXI bus, whose main function is to integrate DMA functionality on a chip
dedicated to carrying data between memory and peripherals in APB bus
(e.g. nand).

Thanks.

----
V6:
patch(2/2):
 - Use GFP_NOWAIT as the flag for allocating descriptor memory;
 - Drop superfluous init in ls2x_dma_write_cmd().

Thanks to Vinod for the suggestions.

Link to V5:
https://lore.kernel.org/dmaengine/cover.1700644483.git.zhoubinbin@loongson.cn/

V5:
patch(2/2):
 - Rebase on dmaengine/next;
 - Annotate struct ls2x_dma_sg with __counted_by;
 - .remove()->.remove_new()
 - Drop duplicate assignments in ls2x_dma_chan_init().

Link to V4:
https://lore.kernel.org/all/cover.1691647870.git.zhoubinbin@loongson.cn/

V4:
patch(2/2)
  - Drop linux/of_device.h;
  - Meaningful parameter name for ls2x_dma_fill_desc(): i->sg_index; 
  - Check the slave config and reject invalid configurations;
  - Update data width handle;
  - Use generic xlate: of_dma_xlate_by_chan_id().

Link to V3:
https://lore.kernel.org/dmaengine/cover.1689075791.git.zhoubinbin@loongson.cn/

V3:
patch(1/2)
  - Add clocks property;
  - Drop dma-channels property, for we are single-channel dmac.
patch(2/2)
  - Add clk support. 

Link to V2:
https://lore.kernel.org/dmaengine/cover.1686192243.git.zhoubinbin@loongson.cn/

V2:
patch(1/2)
  - Minor changes from Conor;
  - Add Reviewed-by tag.
patch(2/2)
  - Fix build errors from lkp@intel.com.

Link to V1:
https://lore.kernel.org/dmaengine/cover.1685448898.git.zhoubinbin@loongson.cn/

Binbin Zhou (2):
  dt-bindings: dmaengine: Add Loongson LS2X APB DMA controller
  dmaengine: ls2x-apb: new driver for the Loongson LS2X APB DMA
    controller

 .../bindings/dma/loongson,ls2x-apbdma.yaml    |  62 ++
 MAINTAINERS                                   |   7 +
 drivers/dma/Kconfig                           |  14 +
 drivers/dma/Makefile                          |   1 +
 drivers/dma/ls2x-apb-dma.c                    | 705 ++++++++++++++++++
 5 files changed, 789 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/loongson,ls2x-apbdma.yaml
 create mode 100644 drivers/dma/ls2x-apb-dma.c

Comments

Vinod Koul Dec. 21, 2023, 4:30 p.m. UTC | #1 
On Mon, 18 Dec 2023 09:56:37 +0800, Binbin Zhou wrote:
> This patchset introduces you to the LS2X apbdma controller.
> 
> The Loongson LS2X APB DMA controller is available on Loongson-2K chips.
> It is a single-channel, configurable DMA controller IP core based on the
> AXI bus, whose main function is to integrate DMA functionality on a chip
> dedicated to carrying data between memory and peripherals in APB bus
> (e.g. nand).
> 
> [...]

Applied, thanks!

[1/2] dt-bindings: dmaengine: Add Loongson LS2X APB DMA controller
      commit: 3b3b5339cdc67e98817d08431f8443b08880084f
[2/2] dmaengine: ls2x-apb: New driver for the Loongson LS2X APB DMA controller
      commit: 71e7d3cb6e55ae2eadcdb178f9243dc18499d369

Best regards,