linux-kernel - Re: [PATCH 2/2] soc: sprd: Add Spreadtrum special bits updating support

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Message-ID: <CADBw62r2+3DiUg4oFq6gWJTrCyCEnmekA5jqwHPwA=0zJauTPw@mail.gmail.com>
Date:   Sat, 18 Apr 2020 09:52:58 +0800
From:   Baolin Wang <baolin.wang7@...il.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Lee Jones <lee.jones@...aro.org>, Mark Brown <broonie@...nel.org>,
        Orson Zhai <orsonzhai@...il.com>,
        Lyra Zhang <zhang.lyra@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] soc: sprd: Add Spreadtrum special bits updating support

On Fri, Apr 17, 2020 at 11:03 PM Arnd Bergmann <arnd@...db.de> wrote:
>
> On Fri, Apr 17, 2020 at 4:10 PM Baolin Wang <baolin.wang7@...il.com> wrote:
> > On Fri, Apr 17, 2020 at 9:39 PM Arnd Bergmann <arnd@...db.de> wrote:
> > > On Fri, Apr 17, 2020 at 4:14 AM Baolin Wang <baolin.wang7@...il.com> wrote:
> > > > +static int sprd_syscon_init(void)
> > > > +{
> > > > +       syscon_register_phys_regmap_bus(&sprd_syscon_regmap);
> > > > +
> > > > +       return 0;
> > > > +}
> > > > +core_initcall_sync(sprd_syscon_init);
> > >
> > > This no longer breaks at runtime based on the changes in the other
> > > patch, but I still don't like how you have to manually load this module
> > > on spreadtrum platforms.
> > >
> > > What I meant to suggest in my previous reply was to add the regmap_bus
> > > instance into drivers/mfd/syscon.c itself.
> >
> > Sorry, I misunderstood your meaning before, but what you suggested
> > will add some vendor-specific things into the common syscon driver, if
> > other platforms have different update bits method, we will add another
> > vendor-specific regmap bus into the syscon.c, which will make syscon.c
> > more complicated.
>
> I think we can always deal with this once it gets too complex, as long
> as the DT binding allows it.
>
> > But if you still prefer to add these vendor-specific things into the
> > syscon.c, I will follow your suggestion in next version. Thanks.
>
> Yes, please do.

Sure. Thanks.

-- 
Baolin Wang