From: Alexander Stein <alexander.stein@systec-electronic.com>
To: Mark Brown <broonie@kernel.org>
Cc: linux-kernel@vger.kernel.org, Stefan Agner <stefan@agner.ch>
Subject: Re: [PATCH] regmap: mmio: Fix value endianness selection
Date: Tue, 29 Mar 2016 08:10:18 +0200 [thread overview]
Message-ID: <2467072.5nNY07Ee9z@ws-stein> (raw)
In-Reply-To: <20160325112459.GD2566@sirena.org.uk>
On Friday 25 March 2016 11:24:59, Mark Brown wrote:
> On Wed, Mar 23, 2016 at 03:20:46PM +0100, Alexander Stein wrote:
> > The difference in those drivers is that syscon manually sets
> > config.val_format_endian before calling regmap_init_mmio.
> > spi-fsl-dspi does not. I guess this driver relies on this configuration
> > being done in regmap_get_val_endian. But this is never reached because
> > after setting
> Does this IP exist in configurations where it is anything other than big
> endian? If not then this probably shouldn't be in DT.
AFAIK it is included once or twice in the VFxxx series. CC'ed Stefan Agner for
confirmation.
Stefan: Is the DCU on VFxxx attached little-endian, e.g. no byte swapping
needed when accessing the periphery?
Best regards,
Alexander
next prev parent reply other threads:[~2016-03-29 6:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-23 13:17 [PATCH] regmap: mmio: Fix value endianness selection Mark Brown
2016-03-23 13:38 ` Alexander Stein
2016-03-23 13:42 ` Applied "regmap: mmio: Fix value endianness selection" to the regmap tree Mark Brown
2016-03-23 14:20 ` [PATCH] regmap: mmio: Fix value endianness selection Alexander Stein
2016-03-25 11:24 ` Mark Brown
2016-03-29 6:10 ` Alexander Stein [this message]
2016-03-29 6:11 ` Stefan Agner
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