linux-kernel - Re: [PATCH 0/3] gpio: pcie-idio-24: Fix IRQ handling

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Message-ID: <CAMpxmJVFBRwzzyLxi1DQ2ScrggfETFy-5g2bN0Avo9DK5V+GFA@mail.gmail.com>
Date:   Fri, 6 Nov 2020 15:20:44 +0100
From:   Bartosz Golaszewski <bgolaszewski@...libre.com>
To:     Arnaud de Turckheim <quarium@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-gpio <linux-gpio@...r.kernel.org>,
        William Breathitt Gray <vilhelm.gray@...il.com>
Subject: Re: [PATCH 0/3] gpio: pcie-idio-24: Fix IRQ handling

On Wed, Nov 4, 2020 at 4:25 PM Arnaud de Turckheim <quarium@...il.com> wrote:
>
> This patch set fixes the irq_mask/irq_unmask functions and enables the
> PLX PEX8311 local interrupts.
>
> With the current version of the driver, gpiomon (from libgpiod) or a
> poll(2) on the sysfs value are not working. According to
> /proc/interrupts, there is no interruption triggered.
> The main issue is that the local interrupts are not forwarded by the
> PEX8311 to the PCI.
>
> There is also two bugs:
>     - The IRQ mask is not correctly updated when unmasking an
>       interruption.
>     - The COS Enable Register value is not correctly updated when
>       masking/unmasking an interruption.
>
> It seems this problems exist since the initial commit.
>
> Arnaud de Turckheim (3):
>   gpio: pcie-idio-24: Fix irq mask when masking
>   gpio: pcie-idio-24: Fix IRQ Enable Register value
>   gpio: pcie-idio-24: Enable PEX8311 interrupts
>
>  drivers/gpio/gpio-pcie-idio-24.c | 62 ++++++++++++++++++++++++++++----
>  1 file changed, 56 insertions(+), 6 deletions(-)
>
> --
> 2.25.1
>

Series queued for fixes, thanks!

Bartosz