linux-kernel - Re: [PATCH 2/2] dw_dmac: make usage of dw_dma

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Message-ID: <CAOh2x=mpzinz4xr4poNtX0Mom65kfptGM047-hu+XDLTS7m2rw@mail.gmail.com>
Date:	Thu, 15 Nov 2012 20:28:02 +0530
From:	viresh kumar <viresh.kumar@...aro.org>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	Vinod Koul <vinod.koul@...el.com>,
	spear-devel <spear-devel@...t.st.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] dw_dmac: make usage of dw_dma_slave optional

On Thu, Nov 15, 2012 at 7:50 PM, Andy Shevchenko
<andriy.shevchenko@...ux.intel.com> wrote:
> diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c

> +static inline bool dwc_is_slave(struct dma_slave_config *sconfig)
> +{
> +       return is_slave_direction(sconfig->direction);
> +}

I will not buy this one. Why hide the real implementation, call
is_slave_direction()
directly.

> @@ -1344,6 +1352,8 @@ struct dw_cyclic_desc *dw_dma_cyclic_prep(struct dma_chan *chan,
> +       sconfig->direction = direction;
> +

> @@ -1718,6 +1728,7 @@ static int __devinit dw_probe(struct platform_device *pdev)
> +               dwc->dma_sconfig.direction = DMA_TRANS_NONE;

Why do you need above changes??

--
viresh
--
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