linux-kernel - Re: [RFC 13/23] spi: omap2-mcspi: raw read and write endian fix

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Message-ID: <20131116101922.GL15393@sirena.org.uk>
Date:	Sat, 16 Nov 2013 10:19:22 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Taras Kondratiuk <taras.kondratiuk@...aro.org>
Cc:	linux-omap@...r.kernel.org, linaro-networking@...aro.org,
	Victor Kamensky <victor.kamensky@...aro.org>,
	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC 13/23] spi: omap2-mcspi: raw read and write endian fix

On Sat, Nov 16, 2013 at 02:01:16AM +0200, Taras Kondratiuk wrote:
> From: Victor Kamensky <victor.kamensky@...aro.org>
> 
> All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
> Need to use endian neutral functions to read/write h/w registers.
> I.e instead of __raw_read[lw] and __raw_write[lw] functions code
> need to use read[lw]_relaxed and write[lw]_relaxed functions.
> If the first simply reads/writes register, the second will byteswap
> it if host operates in BE mode.

Applied, thanks.

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