linux-kernel - Re: [PATCH v2] irqchip/irq-mst: Support polarity configuration

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Message-ID: <CAFr9PXmiR9Wo9HxhRLj-k6+O5qu-uLSTCvQRqW-Yqgkk8YK-Tw@mail.gmail.com>
Date:   Mon, 8 Mar 2021 22:40:36 +0900
From:   Daniel Palmer <daniel@...f.com>
To:     Mark-PK Tsai <mark-pk.tsai@...iatek.com>
Cc:     Marc Zyngier <maz@...nel.org>,
        YJ Chiang (江英杰) <yj.chiang@...iatek.com>,
        Daniel Palmer <daniel@...ngy.jp>,
        Thomas Gleixner <tglx@...utronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2] irqchip/irq-mst: Support polarity configuration

Hi Mark-PK,

On Mon, 8 Mar 2021 at 15:05, Mark-PK Tsai <mark-pk.tsai@...iatek.com> wrote:
> +static int mst_irq_chip_set_type(struct irq_data *data, unsigned int type)
> +{
> +       if (type != IRQ_TYPE_LEVEL_LOW && type != IRQ_TYPE_LEVEL_HIGH)
> +               return -EINVAL;
> +

Does this mean we can't do rising or falling edge interrupts?

Thanks,

Daniel