linux-kernel - Re: [Patch v1 2/4] dma: tegra: Adding Tegra GPC DMA controller driver

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Message-ID: <a0e8fca8-da72-bafa-9980-6d5ffd1af6e3@infradead.org>
Date:   Mon, 20 Jul 2020 08:42:03 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Rajesh Gumasta <rgumasta@...dia.com>, ldewangan@...dia.com,
        jonathanh@...dia.com, vkoul@...nel.org, dan.j.williams@...el.com,
        thierry.reding@...il.com, p.zabel@...gutronix.de,
        dmaengine@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     kyarlagadda@...dia.com, Pavan Kunapuli <pkunapuli@...dia.com>
Subject: Re: [Patch v1 2/4] dma: tegra: Adding Tegra GPC DMA controller driver

On 7/19/20 11:34 PM, Rajesh Gumasta wrote:
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index e9ed916..be4c395 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -639,6 +639,18 @@ config TEGRA210_ADMA
>  	  peripheral and vice versa. It does not support memory to
>  	  memory data transfer.
>  
> +config TEGRA_GPC_DMA
> +	tristate "NVIDIA Tegra GPC DMA support"
> +	depends on ARCH_TEGRA_186_SOC || ARCH_TEGRA_194_SOC || COMPILE_TEST
> +	select DMA_ENGINE
> +	help
> +	  Support for the NVIDIA Tegra186 and Tegra194 GPC DMA controller
> +	  driver. The DMA controller is having multiple DMA channel which

	          The DMA controller has multiple DMA channels which

> +	  can be configured for different peripherals like UART, SPI, etc
> +	  which are on APB bus.
> +	  This DMA controller transfers data from memory to peripheral fifo

	                                                               FIFO

> +	  or vice versa. It also supports memory to memory data transfer.
> +
>  config TIMB_DMA
>  	tristate "Timberdale FPGA DMA support"
>  	depends on MFD_TIMBERDALE || COMPILE_TEST


thanks.
-- 
~Randy