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Message-ID: <CAAhV-H6aGS6VXGzkqWTyxL7bGw=KdjmnRZj7SpwrV5hT6XQcpg@mail.gmail.com>
Date: Sat, 16 Mar 2024 22:04:50 +0800
From: Huacai Chen <chenhuacai@...nel.org>
To: keguang.zhang@...il.com
Cc: Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	linux-mips@...r.kernel.org, dmaengine@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 0/2] Add support for Loongson1 DMA

Hi, Keguang,

Sorry for the late reply, there is already a ls2x-apb-dma driver, I'm
not sure but can they share the same code base? If not, can rename
this driver to ls1x-apb-dma for consistency?

Huacai

On Sat, Mar 16, 2024 at 7:34 PM Keguang Zhang via B4 Relay
<devnull+keguang.zhang.gmail.com@...nel.org> wrote:
>
> Add the driver and dt-binding document for Loongson1 DMA.
>
> Changelog
> V5 -> 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
> V4 -> 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
> V3 -> 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.
> V2 -> V3:
>    Rename ls1x_dma_filter_fn to ls1x_dma_filter.
> V1 -> 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 DMA
>   dmaengine: Loongson1: Add Loongson1 dmaengine driver
>
>  .../bindings/dma/loongson,ls1x-dma.yaml       |  64 +++
>  drivers/dma/Kconfig                           |   9 +
>  drivers/dma/Makefile                          |   1 +
>  drivers/dma/loongson1-dma.c                   | 492 ++++++++++++++++++
>  4 files changed, 566 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/dma/loongson,ls1x-dma.yaml
>  create mode 100644 drivers/dma/loongson1-dma.c
>
> --
> 2.39.2
>
> base-commit: 719136e5c24768ebdf80b9daa53facebbdd377c3
> ---
> Keguang Zhang (2):
>       dt-bindings: dma: Add Loongson-1 DMA
>       dmaengine: Loongson1: Add Loongson1 dmaengine driver
>
>  .../devicetree/bindings/dma/loongson,ls1x-dma.yaml |  66 ++
>  drivers/dma/Kconfig                                |   9 +
>  drivers/dma/Makefile                               |   1 +
>  drivers/dma/loongson1-dma.c                        | 665 +++++++++++++++++++++
>  4 files changed, 741 insertions(+)
> ---
> base-commit: a1e7655b77e3391b58ac28256789ea45b1685abb
> change-id: 20231120-loongson1-dma-163afe5708b9
>
> Best regards,
> --
> Keguang Zhang <keguang.zhang@...il.com>
>
>

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