linux-kernel - Re: [PATCH v4 2/7] ARM: imx6q: add iomuxc gpr support into syscon

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Date:	Fri, 31 Aug 2012 10:02:48 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Dong Aisheng <b29396@...escale.com>
CC:	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linus.walleij@...ricsson.com>, <s.hauer@...gutronix.de>,
	<kernel@...gutronix.de>, <grant.likely@...retlab.ca>,
	<rob.herring@...xeda.com>, <sameo@...ux.intel.com>, <lrg@...com>,
	<broonie@...nsource.wolfsonmicro.com>,
	<richard.zhao@...escale.com>,
	<devicetree-discuss@...ts.ozlabs.org>, <swarren@...dotorg.org>
Subject: Re: [PATCH v4 2/7] ARM: imx6q: add iomuxc gpr support into syscon

On Wed, Aug 29, 2012 at 06:56:53PM +0800, Dong Aisheng wrote:
> From: Dong Aisheng <dong.aisheng@...aro.org>
> 
> Include headfile for easy using.
> 
> Acked-by: Stephen Warren <swarren@...dotorg.org>
> Signed-off-by: Dong Aisheng <dong.aisheng@...aro.org>
> ---
>  arch/arm/boot/dts/imx6q.dtsi         |    5 +
>  include/linux/fsl/imx6q-iomuxc-gpr.h |  319 ++++++++++++++++++++++++++++++++++

I assume that all the users of this header file are imx6q syscon
clients.  In that case, this header belongs to mfd/syscon subsystem.

I have been told by people that it was a mistake to create
include/linux/fsl.  Each header in include/linux should go to
respective subsystem sub-directory.  For this particular case,
it should be include/linux/mfd or include/linux/mfd/syscon even
better, IMO.

<snip>

> +#define IMX6Q_GPR13_SATA_PHY_1_MED		(0x1 << 0)
> +#define IMX6Q_GPR13_SATA_PHY_1_SLOW		(0x2 << 0)
> +
> +#endif /* !__LINUX_IMX6Q_IOMUXC_GPR_H */

Nit: why do we have a "!" there?

-- 
Regards,
Shawn

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