Re: [PATCH v4 2/3] hwmon: (lm90) add support to handle IRQ

From: Wei Ni
Date: Mon Nov 04 2013 - 05:05:59 EST


On 11/04/2013 05:34 PM, Jean Delvare wrote:
> Hi Wei,
>
> I'm hitting a problem with that patch now...
>
> On Wed, 7 Aug 2013 14:18:25 +0800, Wei Ni wrote:
>> When the temperature exceed the limit range value,
>> the driver can handle the interrupt.
>>
>> Signed-off-by: Wei Ni <wni@xxxxxxxxxx>
>> ---
>> drivers/hwmon/lm90.c | 23 +++++++++++++++++++++++
>> 1 file changed, 23 insertions(+)
>>
>> diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
>> index 1da2eff..2e68773 100644
>> --- a/drivers/hwmon/lm90.c
>> +++ b/drivers/hwmon/lm90.c
>> @@ -89,6 +89,7 @@
>> #include <linux/err.h>
>> #include <linux/mutex.h>
>> #include <linux/sysfs.h>
>> +#include <linux/interrupt.h>
>>
>> /*
>> * Addresses to scan
>> @@ -1433,6 +1434,16 @@ static bool lm90_is_tripped(struct i2c_client *client)
>> return true;
>> }
>>
>> +static irqreturn_t lm90_irq_thread(int irq, void *dev_id)
>> +{
>> + struct i2c_client *client = dev_id;
>> +
>> + if (lm90_is_tripped(client))
>
> Did you really send the latest version of the patch? lm90_is_tripped()
> takes two arguments now, but here you only pass one.
>
> If you have a more up-to-date version of this patch, please send it
> over quickly.

Hi, Jean
It's so sorry. As you know I resend the "[PATCH RESEND v4 1/3] hwmon:
(lm90) Define status bits" last week, but didn't rebase this patch. I
will rebase it and send it right now.

Wei.
Thanks.

>
>> + return IRQ_HANDLED;
>> + else
>> + return IRQ_NONE;
>> +}
>> +
>> static int lm90_probe(struct i2c_client *client,
>> const struct i2c_device_id *id)
>> {
>> @@ -1509,6 +1520,18 @@ static int lm90_probe(struct i2c_client *client,
>> goto exit_remove_files;
>> }
>>
>> + if (client->irq) {
>> + dev_dbg(dev, "IRQ: %d\n", client->irq);
>> + err = devm_request_threaded_irq(dev, client->irq,
>> + NULL, lm90_irq_thread,
>> + IRQF_TRIGGER_LOW | IRQF_ONESHOT,
>> + "lm90", client);
>> + if (err < 0) {
>> + dev_err(dev, "cannot request IRQ: %d\n", client->irq);
>> + goto exit_remove_files;
>> + }
>> + }
>> +
>> return 0;
>>
>> exit_remove_files:
>
>

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