linux-kernel - Re: [PATCH] gpio: thunderx: fix irq_request

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Date:   Thu, 26 Mar 2020 00:33:00 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Sasha Levin <sashal@...nel.org>
Cc:     Tim Harvey <tharvey@...eworks.com>,
        stable <stable@...r.kernel.org>,
        Robert Richter <rrichter@...vell.com>,
        Lokesh Vutla <lokeshvutla@...com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] gpio: thunderx: fix irq_request_resources

On Fri, Mar 13, 2020 at 4:01 PM Sasha Levin <sashal@...nel.org> wrote:
> On Thu, Mar 12, 2020 at 10:16:40AM -0700, Tim Harvey wrote:
> >On Thu, Mar 12, 2020 at 6:42 AM Linus Walleij <linus.walleij@...aro.org> wrote:
> >>
> >> On Wed, Mar 11, 2020 at 4:43 PM Tim Harvey <tharvey@...eworks.com> wrote:
> >>
> >> > If there are no parent resources do not call irq_chip_request_resources_parent
> >> > at all as this will return an error.
> >> >
> >> > This resolves a regression where devices using a thunderx gpio as an interrupt
> >> > would fail probing.
> >> >
> >> > Fixes: 0d04d0c ("gpio: thunderx: Use the default parent apis for {request,release}_resources")
> >> > Signed-off-by: Tim Harvey <tharvey@...eworks.com>
> >>
> >> This patch does not apply to the mainline kernel or v5.6-rc1.
> >>
> >> Please verify:
> >> 1. If the problem is still in v5.6 (we refactored the driver to
> >>    use GPIOLIB_IRQCHIP)
> >
> >Linus,
> >
> >Sorry, another issue was keeping me from being able to boot 5.6-rc but
> >that's now understood and I can confirm the issue is not present in
> >v5.6-rc5
> >
> >>
> >> 2. If not, only propose it for linux-stable v5.5 etc.
> >>
> >
> >Yes, needs to be applied to v5.2, v5.3, v5.4, v5.5. I cc'd stable. If
> >I need to re-submit please let me know.
> >
> >Cc: stable@...r.kernel.org
>
> Linus, could you ack this patch for stable?

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

Sorry for the delay :/

Yours,
Linus Walleij