From: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
Cc: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Leilk Liu <leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Matthias Brugger
<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.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-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
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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 3:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-11 10:43 [PATCH] spi: Mediatek: fix endian warnings Leilk Liu
2015-08-12 14:45 ` Jonas Gorski
[not found] ` <CAOiHx=mrDhxkMd5WVTpayyyxXHUDRTELubErynN3qd-v5qpCfw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-08-13 2:11 ` lei liu
2015-08-13 9:19 ` Mark Brown
[not found] ` <1439289789-29026-1-git-send-email-leilk.liu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2015-08-15 20:16 ` Arnd Bergmann
2015-08-15 20:17 ` Arnd Bergmann
2015-08-16 14:06 ` Russell King - ARM Linux
[not found] ` <20150816140639.GE7557-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2015-08-17 3:30 ` Mark Brown [this message]
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