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

From: Dong Aisheng
Date: Sun Sep 02 2012 - 23:08:07 EST


On Fri, Aug 31, 2012 at 10:02:48AM +0800, Shawn Guo wrote:
> On Wed, Aug 29, 2012 at 06:56:53PM +0800, Dong Aisheng wrote:
> > From: Dong Aisheng <dong.aisheng@xxxxxxxxxx>
> >
> > Include headfile for easy using.
> >
> > Acked-by: Stephen Warren <swarren@xxxxxxxxxxxxx>
> > Signed-off-by: Dong Aisheng <dong.aisheng@xxxxxxxxxx>
> > ---
> > 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.
>
I like the later one if not put in include/linux/fsl. :)

> > +#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?
>
You're right.
We do not need a '!' for such macro.
Sorry for my mistake.

Regards
Dong Aisheng

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