linux-kernel - Re: [PATCH v2 1/7] gpio: tqmx86: really make IRQ optional

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Date:   Fri, 2 Jul 2021 15:45:33 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Matthias Schiffer <matthias.schiffer@...tq-group.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Lee Jones <lee.jones@...aro.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/7] gpio: tqmx86: really make IRQ optional

On Fri, Jul 02, 2021 at 02:23:47PM +0200, Matthias Schiffer wrote:
> The tqmx86 MFD driver was passing IRQ 0 for "no IRQ" in the past. This
> causes warnings with newer kernels.
> 
> Prepare the gpio-tqmx86 driver for the fixed MFD driver by handling a
> missing IRQ properly.
> 
> Fixes: b868db94a6a7 ("gpio: tqmx86: Add GPIO from for this IO controller")
> Signed-off-by: Matthias Schiffer <matthias.schiffer@...tq-group.com>

The system i was using this on made use of interrupts, so i never
tested with it missing.

It is a shame platform_get_irq_optional() does something different to
all the other _optional() calls :-(

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

    Andrew