From: Mark Brown <broonie@kernel.org>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>, Leilk Liu <leilk.liu@mediatek.com>,
Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] spi: Mediatek: fix endian warnings
Date: Sun, 16 Aug 2015 20:30:47 -0700 [thread overview]
Message-ID: <20150817033047.GM10748@sirena.org.uk> (raw)
In-Reply-To: <20150816140639.GE7557@n2100.arm.linux.org.uk>
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On Sun, Aug 16, 2015 at 03:06:39PM +0100, Russell King - ARM Linux wrote:
> All writel() implementations take a CPU number and write it in little
> endian format. Hence, writel() almost always uses cpu_to_le32()
> internally.
I think the reason this keeps coming up is that people aren't expecting
writel() to be doing endianness conversion, it's easy to get caught out
by it.
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prev parent reply other threads:[~2015-08-17 3:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-11 10:43 Leilk Liu
2015-08-12 14:45 ` Jonas Gorski
2015-08-13 2:11 ` lei liu
2015-08-13 9:19 ` Mark Brown
2015-08-15 20:16 ` Arnd Bergmann
2015-08-15 20:17 ` Arnd Bergmann
2015-08-16 14:06 ` Russell King - ARM Linux
2015-08-17 3:30 ` Mark Brown [this message]
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