linux-kernel - Re: [PATCH v2] pinctrl: at91-pio4: Use platform_get

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Message-ID: <CACRpkdaPVQ4jph5mWca9-ubAZjV6tpSpUfjJrsK+0+Si6yqtwQ@mail.gmail.com>
Date:   Sun, 16 Jan 2022 01:00:53 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Cc:     Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Prabhakar <prabhakar.csengg@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] pinctrl: at91-pio4: Use platform_get_irq() to get the interrupt

On Tue, Jan 4, 2022 at 3:10 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().
>
> While at it, replace the dev_err() with dev_dbg() as platform_get_irq()
> prints an error message upon error.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> ---
> v1->v2
> * Switched using platform_get_irq()
> * Replaced dev_err() with dev_dbg()

Looks good to me but I'd like some ACK from a Microchip person
before I merge this (for v5.18).

Yours,
Linus Walleij