linux-kernel - Re: [PATCH v3] sh: avoid using IRQ0 on SH3/4

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Date:   Fri, 29 Apr 2022 16:24:04 +0200
From:   John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To:     Sergey Shtylyov <s.shtylyov@....ru>, Rich Felker <dalias@...c.org>,
        linux-sh@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v3] sh: avoid using IRQ0 on SH3/4

Hi Sergey!

On 4/27/22 20:46, Sergey Shtylyov wrote:
> Using IRQ0 by the platform devices is going to be disallowed soon (see [1])
> and even now, when IRQ0 is about to be returned by platfrom_get_irq(), you
> see a big warning.  The code supporting SH3/4 SoCs maps the IRQ #s starting
> at 0 -- modify that code to start the IRQ #s from 16 instead.
> 
> The patch should mostly affect the AP-SH4A-3A/AP-SH4AD-0A boards as they
> indeed use IRQ0 for the SMSC911x compatible Ethernet chip...

Maybe try getting it landed through Andrew Morton's tree?

Adrian

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