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Message-ID: <55DF4899.9000907@intel.com>
Date: Thu, 27 Aug 2015 19:27:53 +0200
From: Loic Poulain <loic.poulain@intel.com>
MIME-Version: 1.0
To: Marcel Holtmann <marcel@holtmann.org>
CC: linux-bluetooth@vger.kernel.org, gaetan.prin@intel.com
Subject: Re: [PATCH 1/5] Bluetooth: hci_intel: Retrieve host-wake IRQ
References: <1440689946-13576-1-git-send-email-loic.poulain@intel.com> <94E2FA7D-93BE-48A5-8A23-FB35EECE009D@holtmann.org>
In-Reply-To: <94E2FA7D-93BE-48A5-8A23-FB35EECE009D@holtmann.org>
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List-ID: <linux-bluetooth.vger.kernel.org>

Hi Marcel,

>> +	idev->irq = platform_get_irq(pdev, 0);
>> +	if (idev->irq < 0) {
>> +		struct gpio_desc *host_wake;
>> +
>> +		dev_err(&pdev->dev, "No IRQ, falling back to gpio-irq\n");
>> +
>> +		host_wake = devm_gpiod_get_optional(&pdev->dev, "host-wake",
>> +						    GPIOD_IN);
>> +		if (IS_ERR(host_wake)) {
>> +			dev_err(&pdev->dev, "Unable to retrieve IRQ\n");
>> +			goto no_irq;
>> +		}
>> +
>> +		idev->irq = gpiod_to_irq(host_wake);
>> +		if (idev->irq < 0) {
>> +			dev_err(&pdev->dev, "No corresponding irq for gpio\n");
>> +			goto no_irq;
>> +		}
>> +	}
>> +
>> +	err = devm_request_threaded_irq(&pdev->dev, idev->irq, NULL, intel_irq,
>> +					IRQF_ONESHOT, "bt-host-wake", idev);
>> +	if (err) {
>> +		dev_err(&pdev->dev, "unable to allocate irq\n");
>> +		return err;
>> +	}
>> +
>> +	device_init_wakeup(&pdev->dev, true);
>
> do you really want to do this in probe? Meaning that as soon as we boot, we claim this interrupt. Isn't it better to do this when the line discipline gets attached.


Is it ok to move the irq request/free in intel_set_power?

Regards,
Loic

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