linux-kernel - Re: [PATCH v2 2/2] Revert "ARM: dts: armada-39x: Fix compatible string for gpios"

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Message-ID: <Y7mpbOUmRYWw+8Wj@lunn.ch>
Date:   Sat, 7 Jan 2023 18:18:36 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Klaus Kudielka <klaus.kudielka@...il.com>
Cc:     Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Pali Rohár <pali@...nel.org>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Chris Packham <chris.packham@...iedtelesis.co.nz>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] Revert "ARM: dts: armada-39x: Fix compatible
 string for gpios"

On Sat, Jan 07, 2023 at 03:41:49PM +0100, Klaus Kudielka wrote:
> This reverts commit d10886a4e6f85ee18d47a1066a52168461370ded.
> 
> If compatible = "marvell,armadaxp-gpio", the reg property requires a
> second (address, size) pair, which points to the per-CPU interrupt
> registers <0x18800 0x30> / <0x18840 0x30>.
> 
> Furthermore:
> Commit 5f79c651e81e explains very well, why the gpio-mvebu driver does not
> work reliably with per-CPU interrupts.
> Commit 988c8c0cd04d deprecates compatible = marvell,armadaxp-gpio for this
> reason.
> 
> Signed-off-by: Klaus Kudielka <klaus.kudielka@...il.com>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew