linux-kernel - Re: [PATCH v3 4/5] input: Add MediaTek PMIC keys support

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Message-ID: <20170828165757.GE12195@dtor-ws>
Date:   Mon, 28 Aug 2017 09:57:57 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Chen Zhong <chen.zhong@...iatek.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Eddie Huang <eddie.huang@...iatek.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Andi Shyti <andi.shyti@...sung.com>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Jaechul Lee <jcsing.lee@...sung.com>,
        linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-rtc@...r.kernel.org
Subject: Re: [PATCH v3 4/5] input: Add MediaTek PMIC keys support

Hi Chen,

On Fri, Aug 25, 2017 at 02:32:32PM +0800, Chen Zhong wrote:
> +static int mtk_pmic_key_setup(struct mtk_pmic_keys *keys,
> +		struct pmic_keys_info *info)
> +{
> +	int ret;
> +
> +	info->keys = keys;
> +
> +	ret = regmap_update_bits(keys->regmap, info->regs->intsel_reg,
> +				 info->regs->intsel_mask,
> +				 info->regs->intsel_mask);
> +	if (ret < 0)
> +		return ret;
> +
> +	ret = devm_request_threaded_irq(keys->dev, info->irq, NULL,
> +					mtk_pmic_keys_irq_handler_thread,
> +					IRQF_ONESHOT | IRQF_TRIGGER_HIGH,
> +					"mtk-pmic-keys", info);
> +	if (ret) {
> +		dev_err(keys->dev, "Failed to request IRQ: %d: %d\n",
> +			info->irq, ret);
> +		return ret;
> +	}
> +
> +	if (info->wakeup)
> +		irq_set_irq_wake(info->irq, 1);

Normally we do this in suspend() (and undo in resume()), and I believe
the drover API is enable_irq_wake() and disable_irq_wake().

Thanks.

-- 
Dmitry