linux-kernel - Re: [PATCH 11/13] spi: omap2-mcspi: Support for deferred probing when requesting DMA channels

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Message-ID: <20150527174830.GK21577@sirena.org.uk>
Date:	Wed, 27 May 2015 18:48:30 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
Cc:	vinod.koul@...el.com, tony@...mide.com, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, dan.j.williams@...el.com,
	dmaengine@...r.kernel.org, linux-serial@...r.kernel.org,
	linux-omap@...r.kernel.org, linux-mmc@...r.kernel.org,
	linux-crypto@...r.kernel.org, linux-spi@...r.kernel.org,
	linux-media@...r.kernel.org, alsa-devel@...a-project.org
Subject: Re: [PATCH 11/13] spi: omap2-mcspi: Support for deferred probing
 when requesting DMA channels

On Tue, May 26, 2015 at 04:26:06PM +0300, Peter Ujfalusi wrote:
> Switch to use ma_request_slave_channel_compat_reason() to request the DMA
> channels. Only fall back to pio mode if the error code returned is not
> -EPROBE_DEFER, otherwise return from the probe with the -EPROBE_DEFER.

Acked-by: Mark Brown <broonie@...nel.org>

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