linux-kernel - Re: [PATCH 2/2] Input: i8042: Add LoongArch support in i8042-acpipnpio.h

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Message-ID: <Yzi5nWCeVYV37Htb@google.com>
Date:   Sat, 1 Oct 2022 15:05:17 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Huacai Chen <chenhuacai@...nel.org>
Cc:     Mattijs Korpershoek <mkorpershoek@...libre.com>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Arnd Bergmann <arnd@...db.de>, loongarch@...ts.linux.dev,
        linux-arch@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>,
        Guo Ren <guoren@...nel.org>, Xuerui Wang <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] Input: i8042: Add LoongArch support in
 i8042-acpipnpio.h

On Fri, Sep 30, 2022 at 10:41:59AM +0800, Huacai Chen wrote:
> Hi, Mattijs,
> 
> On Thu, Sep 22, 2022 at 4:32 PM Mattijs Korpershoek
> <mkorpershoek@...libre.com> wrote:
> >
> > On Sat, Sep 17, 2022 at 14:40, Huacai Chen <chenhuacai@...ngson.cn> wrote:
> >
> > > LoongArch uses ACPI and nearly the same as X86/IA64 for 8042. So modify
> > > i8042-acpipnpio.h slightly and enable it for LoongArch in i8042.h. Then
> > > i8042 driver can work well under the ACPI firmware with PNP typed key-
> > > board and mouse configured in DSDT.
> > >
> > > Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
> >
> > I would have split the pr_info() move in its own patch since it seems
> > like a "valid fix" on its own, but i'm probably too pedantic about this.
> >
> > So, please take my:
> >
> > Reviewed-by: Mattijs Korpershoek <mkorpershoek@...libre.com>
> I think the pr_info is needed for all architectures, and the moving is
> very simple so I haven't split it. But anyway, if Dmitry also thinks
> this patch should be split, I will send a new version. :)

The reason for ia64 not emitting this message is because we "trust" ia64
firmware and it is quite normal for it not to have i8042 implementation,
whereas there are a lot of legacy devices on x86 and not having PS/2
keyboard is still not very common.

I moved the pr_info() back into x86/loongarch branch and applied.

Thanks.

-- 
Dmitry