[PATCH 07/24] imx: update is_imx6ull to include i.MX6ULZ

Peng Fan peng.fan at nxp.com
Mon Apr 27 03:25:42 CEST 2020


> Subject: Re: [PATCH 07/24] imx: update is_imx6ull to include i.MX6ULZ
> 
> Hi,
> 
> Am Donnerstag, 23. April 2020, 03:33:49 CEST schrieb Peng Fan:
> > > Subject: Re: [PATCH 07/24] imx: update is_imx6ull to include
> > > i.MX6ULZ
> > >
> > > Am Mittwoch, 22. April 2020, 15:52:18 CEST schrieb Peng Fan:
> > > > Update is_imx6ull helper to include i.MX6ULZ SoC. i.MX6ULZ could
> > > > share same macro, then we no need to add is_imx6ulz in various drivers.
> > > >
> > > > Signed-off-by: Peng Fan <peng.fan at nxp.com>
> > > > ---
> > > >  arch/arm/include/asm/mach-imx/sys_proto.h | 2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > >
> > > > diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h
> > > > b/arch/arm/include/asm/mach-imx/sys_proto.h
> > > > index a02cd40c7d..2a997f280d 100644
> > > > --- a/arch/arm/include/asm/mach-imx/sys_proto.h
> > > > +++ b/arch/arm/include/asm/mach-imx/sys_proto.h
> > > > @@ -37,7 +37,7 @@
> > > >  #define is_mx6sl() (is_cpu_type(MXC_CPU_MX6SL))  #define
> > > is_mx6solo()
> > > > (is_cpu_type(MXC_CPU_MX6SOLO))  #define is_mx6ul()
> > > > (is_cpu_type(MXC_CPU_MX6UL)) -#define is_mx6ull()
> > > > (is_cpu_type(MXC_CPU_MX6ULL))
> > > > +#define is_mx6ull() (is_cpu_type(MXC_CPU_MX6ULL) ||
> > > > +is_cpu_type(MXC_CPU_MX6ULZ))
> > >
> > > While I probably understand your intentions, I fear that it will
> > > lead to confusion when the helper's name does not reflect that more
> > > than one cpu type can match.
> > > What about introducing is_mx6ulX() to signal that the last letter is
> > > "don't care"?
> >
> > Renaming the macro needs to modify drivers using this macro, this is
> > risk to easy break existing code.
> > I prefer to keep as is.
> 
> but when you look at the drivers using this is_mx6ull() macro, then you'll find
> already a bunch of other is_mx...() macros used in addition. Then it would
> also be possible to add the is_mx6ulz() one - it won't make the situation
> worse at these points.
> In my eyes, this is better than hiding two CPUs behind one macro.

That's fine. I'll use ulx in v2.

Thanks,
Peng.

> 
> Thanks,
> Michael
> 
> >
> > Thanks,
> > Peng.
> >
> > >
> > > Best regards,
> > > Michael
> > >
> > > >  #define is_mx6ulz() (is_cpu_type(MXC_CPU_MX6ULZ))  #define
> > > > is_mx6sll() (is_cpu_type(MXC_CPU_MX6SLL))
> > > >
> > > >
> > >
> > >
> > >
> >
> 
> 
> 



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