linux-kernel - Re: [PATCH 3/4] RISC-V: Support case insensitive ISA string parsing.

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Date:   Tue, 30 Jul 2019 15:58:13 -0700 (PDT)
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     Anup Patel <anup@...infault.org>
cc:     Anup Patel <Anup.Patel@....com>, Albert Ou <aou@...s.berkeley.edu>,
        Alan Kao <alankao@...estech.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Johan Hovold <johan@...nel.org>,
        Atish Patra <Atish.Patra@....com>,
        Palmer Dabbelt <palmer@...ive.com>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>
Subject: Re: [PATCH 3/4] RISC-V: Support case insensitive ISA string
 parsing.

On Sat, 27 Jul 2019, Anup Patel wrote:

> On Sat, Jul 27, 2019 at 1:46 PM Paul Walmsley <paul.walmsley@...ive.com> wrote:
> >
> > On Sat, 27 Jul 2019, Anup Patel wrote:
> >
> > > If your only objection is uppercase letter not agreeing with YMAL 
> > > schema then why not fix the YMAL schema to have regex for RISC-V ISA 
> > > string?
> >
> > I don't agree with you that the specification compels software to 
> > accept arbitrary case combinations in the riscv,isa DT string.
> 
> DT describes HW and HW follows RISC-V spec.

The RISC-V specification doesn't specify anything about how the DT data is 
to describe the hardware.

> Enforcing software choices in DT YMAL schema is not correct approach.

That's the point of the DT YAML schemas.


- Paul