linux-kernel - Re: [PATCH v2 1/6] irq: make irq_domain_reset_irq

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Date:   Fri, 14 Feb 2020 10:31:30 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-iio@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v2 1/6] irq: make irq_domain_reset_irq_data() available
 even for non-V2 users

pt., 14 lut 2020 o 10:02 Thomas Gleixner <tglx@...utronix.de> napisał(a):
>
> Bartosz Golaszewski <brgl@...ev.pl> writes:
> > From: Bartosz Golaszewski <bgolaszewski@...libre.com>
> >
> > irq_domain_reset_irq_data() doesn't modify the parent data, so it can be
> > made available even if irq domain hierarchy is not being built.
>
> Yes, it can be made available, but WHY?
>
> Thanks,
>
>         tglx

Duh, I forgot to clarify this. After my previous submission, Marc
suggested I use irq_domain_reset_irq_data() in the unmap() callback
for the simulator domain. I noticed I can't do this because I don't
select the V2 irq domain API, so I added this patch.

Bartosz