RE: [V2] dmaengine: fsl-qdma: add NXP Layerscape qDMA engine driver support

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> -----Original Message-----
> From: dmaengine-owner@xxxxxxxxxxxxxxx
> [mailto:dmaengine-owner@xxxxxxxxxxxxxxx] On Behalf Of Vinod Koul
> Sent: 2018年1月11日 14:25
> To: Wen He <wen.he_1@xxxxxxx>
> Cc: kbuild test robot <lkp@xxxxxxxxx>; kbuild-all@xxxxxx; Leo Li
> <leoyang.li@xxxxxxx>; dmaengine@xxxxxxxxxxxxxxx; Jiafei Pan
> <jiafei.pan@xxxxxxx>; Jiaheng Fan <jiaheng.fan@xxxxxxx>
> Subject: Re: [V2] dmaengine: fsl-qdma: add NXP Layerscape qDMA engine
> driver support
> 
> On Tue, Jan 09, 2018 at 03:30:43AM +0000, Wen He wrote:
> >
> >
> > > -----Original Message-----
> > > From: dmaengine-owner@xxxxxxxxxxxxxxx
> > > [mailto:dmaengine-owner@xxxxxxxxxxxxxxx] On Behalf Of Vinod Koul
> > > Sent: 2018年1月8日 18:42
> > > To: Wen He <wen.he_1@xxxxxxx>
> > > Cc: kbuild test robot <lkp@xxxxxxxxx>; kbuild-all@xxxxxx; Leo Li
> > > <leoyang.li@xxxxxxx>; dmaengine@xxxxxxxxxxxxxxx; Jiafei Pan
> > > <jiafei.pan@xxxxxxx>; Jiaheng Fan <jiaheng.fan@xxxxxxx>
> > > Subject: Re: [V2] dmaengine: fsl-qdma: add NXP Layerscape qDMA
> > > engine driver support
> > >
> > > On Thu, Jan 04, 2018 at 07:36:09AM +0000, Wen He wrote:
> > > > Hi Vinod,
> > >
> > > Hi,
> > >
> > > Please wrap you replies to 80 chars, I have reflow below..
> >
> > okay
> >
> > > >
> > > > I don't know what's them compile? Does means 'the driver has
> > > > public driver, so any arch will compile it'?
> > >
> > > Today it does compile on all archs
> > >
> > > >
> > > > If so, the compile qdma module need enable config options
> > > > 'CONFIG_FSl_QDMA' and other architecture should be hide the options.
> > > > The driver supported arm or arm64 arch, If I change Kconfig to
> > > > solve compile issues, Can I do that?
> > >
> > > yes but as a last resort, it would still help if driver has no
> > > dependency on arch and is able to compile on others..
> > >
> >
> > Hi,
> >
> > I want to do the same, but I can only verify in x86/x86_64, arm/arm64 and
> powerpc.
> >
> > For now, the issues is ioread32/64 ioread32/64be and iowrite32/64
> iowrite32/64be depends on arch defined.
> > most arch defined it, but other not defined(such as x86,s390..).
> >
> > do you have any good ideas?
> 
> ah okay that sounds okay then, I think putting "depends on ARM || ARM64"
> sounds fair to me
> 

Okay, thank the reviews. Will be next version add "depends on ARM || ARM64".

Best Regards,
Wen

> --
> ~Vinod
> --
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