linux-kernel - Re: [PATCH v2 2/4] dma: move dw_dmac driver to an own directory

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Date:	Wed, 12 Jun 2013 15:13:36 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	Andy Shevchenko <andy.shevchenko@...il.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.jf.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	spear-devel <spear-devel@...t.st.com>,
	Arnd Bergmann <arnd@...db.de>, Felipe Balbi <balbi@...com>
Subject: Re: [PATCH v2 2/4] dma: move dw_dmac driver to an own directory

On 12 June 2013 14:32, Vinod Koul <vinod.koul@...el.com> wrote:
> diff --git a/drivers/dma/dw/regs.h b/drivers/dma/dw/regs.h
> index 07c5a6e..deb4274 100644
> --- a/drivers/dma/dw/regs.h
> +++ b/drivers/dma/dw/regs.h
> @@ -101,6 +101,12 @@ struct dw_dma_regs {
>         u32     DW_PARAMS;
>  };
>
> +/*
> + * Big endian I/O access when reading and writing to the DMA controller
> + * registers.  This is needed on some platforms, like the Atmel AVR32
> + * architecture.
> + */
> +
>  #ifdef CONFIG_DW_DMAC_BIG_ENDIAN_IO
>  #define dma_readl_native ioread32be
>  #define dma_writel_native iowrite32be

Looks. Good.
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