linux-kernel - Re: [PATCH v3] gpio: pl061: Fix the issue failed to register the ACPI interrtupion

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Message-ID: <CACRpkdZFwANp-+fSmPPENLoh2Za2-fyf+aZ0VK79AnyRJs1H3A@mail.gmail.com>
Date:   Tue, 20 Aug 2019 10:01:55 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Wei Xu <xuwei5@...ilicon.com>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Linuxarm <linuxarm@...wei.com>,
        Shameerali Kolothum Thodi 
        <shameerali.kolothum.thodi@...wei.com>,
        Jonathan Cameron <jonathan.cameron@...wei.com>,
        John Garry <john.garry@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        Shiju Jose <shiju.jose@...wei.com>, jinying@...ilicon.com,
        Zhangyi ac <zhangyi.ac@...wei.com>,
        "Liguozhu (Kenneth)" <liguozhu@...ilicon.com>,
        Tangkunshan <tangkunshan@...wei.com>,
        huangdaode <huangdaode@...ilicon.com>
Subject: Re: [PATCH v3] gpio: pl061: Fix the issue failed to register the ACPI interrtupion

On Mon, Aug 19, 2019 at 3:29 PM Wei Xu <xuwei5@...ilicon.com> wrote:

> Invoke acpi_gpiochip_request_interrupts after the acpi data has been
> attached to the pl061 acpi node to register interruption.
>
> Otherwise it will be failed to register interruption for the ACPI case.
> Because in the gpiochip_add_data_with_key, acpi_gpiochip_add is invoked
> after gpiochip_add_irqchip but at that time the acpi data has not been
> attached yet.

We need to fix this problem in gpiochip_add_data_with_key() instead.

Yours,
Linus Walleij