From: emilio@elopez•com.ar (Emilio López)
To: linux-arm-kernel@lists•infradead.org
Subject: [linux-sunxi] [PATCH v7] DMA: sun6i: Add driver for the Allwinner A31 DMA controller
Date: Tue, 20 May 2014 09:40:53 -0300 [thread overview]
Message-ID: <537B4D55.5040804@elopez.com.ar> (raw)
In-Reply-To: <1398349364-10726-2-git-send-email-maxime.ripard@free-electrons.com>
Hi Maxime,
El 24/04/14 11:22, Maxime Ripard escribi?:
> The Allwinner A31 has a 16 channels DMA controller that it shares with the
> newer A23. Although sharing some similarities with the DMA controller of the
> older Allwinner SoCs, it's significantly different, I don't expect it to be
> possible to share the driver for these two.
>
> The A31 Controller is able to memory-to-memory or memory-to-device transfers on
> the 16 channels in parallel.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons•com>
> Acked-by: Arnd Bergmann <arnd@arndb•de>
> ---
(snip)
> diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
> index 5c5863842de9..360a10c71388 100644
> --- a/drivers/dma/Kconfig
> +++ b/drivers/dma/Kconfig
> @@ -361,6 +361,14 @@ config FSL_EDMA
> multiplexing capability for DMA request sources(slot).
> This module can be found on Freescale Vybrid and LS-1 SoCs.
>
> +config DMA_SUN6I
> + tristate "Allwinner A31 SoCs DMA support"
> + depends on ARCH_SUNXI
> + select DMA_ENGINE
> + select DMA_VIRTUAL_CHANNELS
I think you also need to select DMA_OF here as you are using
of_dma_controller_register
> + help
> + Support for the DMA engine for Allwinner A31 SoCs.
> +
> config DMA_ENGINE
> bool
Cheers,
Emilio
next prev parent reply other threads:[~2014-05-20 12:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-24 14:22 [PATCH v7] Add support for the Allwinner A31 DMA Controller Maxime Ripard
2014-04-24 14:22 ` [PATCH v7] DMA: sun6i: Add driver for the Allwinner A31 DMA controller Maxime Ripard
2014-04-30 7:04 ` Vinod Koul
2014-04-30 21:53 ` Maxime Ripard
2014-05-02 16:34 ` Vinod Koul
2014-05-08 3:19 ` Maxime Ripard
2014-05-21 5:29 ` Vinod Koul
2014-05-13 13:42 ` Maxime Ripard
2014-05-21 5:31 ` Vinod Koul
2014-05-21 8:58 ` Maxime Ripard
2014-05-21 11:02 ` Vinod Koul
2014-05-20 12:40 ` Emilio López [this message]
2014-05-20 12:52 ` [linux-sunxi] " Shevchenko, Andriy
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