linux-kernel - Re: [PATCH 4/4] dmaengine: dw_dmac: simplify master selection

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Message-ID: <CAKohpo=ebMW97YhxFT+MpQtJF9M4pa8KNqpLWiDCuQtFPD+LnQ@mail.gmail.com>
Date:	Sat, 23 Mar 2013 12:25:28 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	Vinod Koul <vinod.koul@...el.com>, Arnd Bergmann <arnd@...db.de>,
	linux-kernel@...r.kernel.org,
	spear-devel <spear-devel@...t.st.com>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 4/4] dmaengine: dw_dmac: simplify master selection

On 22 March 2013 20:13, Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
> From: Arnd Bergmann <arnd@...db.de>
>
> The patch to add the common DMA binding added a dummy dw_dma_slave
> structure into the dw_dma_chan structure in order to configure the
> masters correctly. It turns out that this can be simplified if we
> pick the DMA masters in the dwc_alloc_chan_resources function instead
> and save them in the dw_dma_chan structure directly.
>
> This could be simplified further once all users that today use
> dw_dma_slave for configuration get converted to device tree based
> setup instead.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Cc: linux-arm-kernel@...ts.infradead.org
> ---
>  drivers/dma/dw_dmac.c      | 76 ++++++++++++++++++----------------------------
>  drivers/dma/dw_dmac_regs.h |  5 ++-
>  2 files changed, 33 insertions(+), 48 deletions(-)

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
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