Re: [Patch v1 0/4] Add Nvidia Tegra GPC-DMA driver

Thierry Reding
2020-07-20T09:26:07Z

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On Mon, Jul 20, 2020 at 12:04:12PM +0530, Rajesh Gumasta wrote:
> Add support for Nvida Tegra general purpose DMA driver for
> Tegra186 and Tegra194 platform.
>
> Patch 1: Add dt-binding document for Tegra GPCDMA driver
> Patch 2: Add Tegra GPCDMA driver
> Patch 3: Enable Tegra GPCDMA as module
> Patch 4: Add GPCDMA DT node for Tegra186 and Tegra194
>
> Rajesh Gumasta (4):
> dt-bindings: dma: Add DT binding document
> dma: tegra: Adding Tegra GPC DMA controller driver
> arm64: configs: enable tegra gpc dma
> arm64: tegra: Add GPCDMA node in dt
>
> .../bindings/dma/nvidia,tegra-gpc-dma.yaml | 99 ++
> arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi | 4 +
> arch/arm64/boot/dts/nvidia/tegra186.dtsi | 46 +
> arch/arm64/boot/dts/nvidia/tegra194.dtsi | 44 +
> arch/arm64/configs/defconfig | 1 +
> drivers/dma/Kconfig | 12 +
> drivers/dma/Makefile | 1 +
> drivers/dma/tegra-gpc-dma.c | 1512 ++++++++++++++++++++
> 8 files changed, 1719 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/dma/nvidia,tegra-gpc-dma.yaml
> create mode 100644 drivers/dma/tegra-gpc-dma.c

Hi Rajesh,

can you provide instructions on how to test that this driver does what
it's supposed to? I could probably figure out how to run this with the
kernel's built-in dmatest module, but if you could provide a set of
parameters that you've used or other instructions on how to validate
this it would greatly help.

Thanks,
Thierry

>
> --
> 2.7.4
>

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