linux-kernel - Re: [PATCH] mfd: ab8500-core: Use platform_get

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Date:   Wed, 22 Dec 2021 03:51:14 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Cc:     Lee Jones <lee.jones@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        Rob Herring <robh+dt@...nel.org>, linux-kernel@...r.kernel.org,
        Prabhakar <prabhakar.csengg@...il.com>
Subject: Re: [PATCH] mfd: ab8500-core: Use platform_get_irq() to get the interrupt

On Tue, Dec 21, 2021 at 10:35 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@...renesas.com> wrote:

> platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static
> allocation of IRQ resources in DT core code, this causes an issue
> when using hierarchical interrupt domains using "interrupts" property
> in the node as this bypasses the hierarchical setup and messes up the
> irq chaining.
>
> In preparation for removal of static setup of IRQ resource from DT core
> code use platform_get_irq().
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij