linux-kernel - Re: [PATCH] mmc: mmci: Allow MMCI to request channels with information acquired from DT

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Message-ID: <20130418093012.GI14496@n2100.arm.linux.org.uk>
Date:	Thu, 18 Apr 2013 10:30:12 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Lee Jones <lee.jones@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linus.walleij@...ricsson.com, Chris Ball <cjb@...top.org>,
	linux-mmc@...r.kernel.org
Subject: Re: [PATCH] mmc: mmci: Allow MMCI to request channels with
	information acquired from DT

On Thu, Apr 18, 2013 at 11:25:44AM +0200, Arnd Bergmann wrote:
> +static void mmci_dma_setup(struct device *dev, struct mmci_host *host)
> +{
> +	const char *rxname, *txname;
> +
> +	host->dma_rx_channel = dma_request_slave_channel(dev, "rx");
> +	host->dma_tx_channel = dma_request_slave_channel(dev, "tx");
> +
> +	if (!host->dma_rx_channel && !host->dma_tx_channel) {
> +		if (host->plat && host->plat->dma_filter)
> +			mmci_dma_plat_setup(host);
> +		else
> +			dev_info(mmc_dev(host->mmc), "no DMA platform data\n");
> +			return;

You may like to fix the sillies in this patch... but yes, the above
would be better.
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