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

[Michael Heimpold <mhei@heimpold.de>]

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@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.

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))
> > >
> > >
> > 
> > 
> > 
>