Re: [PATCH 1/3] arm64: Remove CONFIG_SOC_IMX8MQ and use ARCH_MXC instead

[Shawn Guo]

On Thu, Dec 13, 2018 at 02:51:50PM +0000, Abel Vesa wrote:
...
> > > diff --git a/arch/arm64/Kconfig.platforms
> > > b/arch/arm64/Kconfig.platforms
> > > index 7e1545a..318dbb9 100644
> > > --- a/arch/arm64/Kconfig.platforms
> > > +++ b/arch/arm64/Kconfig.platforms
> > > @@ -148,14 +148,6 @@ config ARCH_MXC
> > >  	  This enables support for the ARMv8 based SoCs in the
> > >  	  NXP i.MX family.
> > >  
> > > -config SOC_IMX8MQ
> > > -	bool "i.MX8MQ support"
> > > -	depends on ARCH_MXC
> > > -	select ARM64_ERRATUM_843419
> > > -	select ARM64_ERRATUM_845719
> > > -	help
> > > -	  This enables support for the i.MX8MQ SoC.
> > > -
> > 
> > NACK on this one. Having a single place where stuff that is absolutely
> > critical for proper SoC operation can be selected is very useful and
> > avoids hard to debug issues due to slightly wrong configs in the long
> > run.
> 
> As mentioned in the cover letter, please ignore this patch set entirely.
> The ARCH_MXC is actually used on arm32 too, so it won't work.
> 
> I'm working on a patchset that will add the Kconfig into 
> drivers/clk/imx/ and in it will add CLK_IMX8MQ. That will
> fix the clock dependency since the CLK_IMX8MQ will depend on
> ARCH_MXC and ARM64. I believe the CLK_IMX8QXP will follow
> the same pattern.
> 
> As for the SOC_IMX8MQ, all the other vendors have one single
> config for all the arm64 platforms. TBH, to control every SoC
> independently it's a little bit of an overkill.

Lucas,

We are still waiting for further comments from Olof [1].  But it sounds
like SoC specific option is not welcomed on ARM64.

Shawn

[1] https://patchwork.kernel.org/patch/10727453/#22378669