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From:   Linus Walleij <linus.walleij@linaro.org>
Date:   Wed, 9 Jun 2021 11:17:22 +0200
Message-ID: <CACRpkdawakx66Nix41h=FzhL--QEMZCcDX=a_hf_kTq+0DjpAg@mail.gmail.com>
Subject: Re: [PATCH v3 1/5] dt-bindings: aspeed-sgpio: Convert txt bindings to yaml.
To:     Steven Lee <steven_lee@aspeedtech.com>
Cc:     Andrew Jeffery <andrew@aj.id.au>,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        Rob Herring <robh+dt@kernel.org>,
        Joel Stanley <joel@jms.id.au>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        "moderated list:ARM/ASPEED MACHINE SUPPORT" 
        <linux-arm-kernel@lists.infradead.org>,
        "moderated list:ARM/ASPEED MACHINE SUPPORT" 
        <linux-aspeed@lists.ozlabs.org>,
        open list <linux-kernel@vger.kernel.org>,
        Hongwei Zhang <Hongweiz@ami.com>,
        Ryan Chen <ryan_chen@aspeedtech.com>,
        Billy Tsai <billy_tsai@aspeedtech.com>
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On Fri, Jun 4, 2021 at 5:31 AM Steven Lee <steven_lee@aspeedtech.com> wrote:

> However, it might affect users who update kernel/driver from the
> old kernel/driver as they may expect the gpio output pin base is start
> from 80(MAX_NR_HW_SGPIO).

Why? What users? In-kernel, out-of-tree-kernel or userspace users?

In-kernel users can be fixed, out-of-tree kernels we don't care about
and userspace should be using the character device.

Just change it.

Yours,
Linus Walleij