Subject: [RFC PATCH 3/9] hwmon: (lm90) add support to handle irq

From: [email-masked] (Alex Courbot)
Date: Wed, 20 Feb 2013 12:27:23 +0900

On 02/20/2013 08:00 AM, Stephen Warren wrote:
> On 02/18/2013 04:30 AM, Wei Ni wrote:
>> Add support to handle irq. When the temperature touch the limit value, the
>> driver can handle the interrupt.
>
>> diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
>
>> +static void lm90_irq_work(struct work_struct *work)
> ...
>> +	enable_irq(client->irq);
>> +}
>> +
>> +static irqreturn_t lm90_irq(int irq, void *dev_id)
>> +{
>> +	struct lm90_data *data = dev_id;
>> +
>> +	disable_irq_nosync(irq);
>
> I think IRQF_ONESHOT would enable you to remove the manual
> enable/disable_irq calls.

Oh, right. Using a threaded IRQ with IRQF_ONESHOT would make that happen 
transparently. Wasn't aware of that, thanks.

Alex.