linux-kernel - Re: [PATCH v2 3/3] hwmon: (pmbus/core): Implement irq support

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Date:   Wed, 30 Nov 2022 22:24:57 +0530
From:   Naresh Solanki <naresh.solanki@...ements.com>
To:     Guenter Roeck <linux@...ck-us.net>, linux-hwmon@...r.kernel.org,
        Jean Delvare <jdelvare@...e.com>
Cc:     Patrick Rudolph <patrick.rudolph@...ements.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] hwmon: (pmbus/core): Implement irq support

Hi Guenter,

On 29-11-2022 08:59 pm, Guenter Roeck wrote:
> On 11/29/22 00:16, Naresh Solanki wrote:
>> Hi Guenter,
>>
>> On 29-11-2022 04:39 am, Guenter Roeck wrote:
>>> On 11/28/22 09:47, Naresh Solanki wrote:
>>>> From: Patrick Rudolph <patrick.rudolph@...ements.com>
>>>>
>>>> Implement PMBUS irq handler to notify regulator events.
>>>>
>>>> Signed-off-by: Patrick Rudolph <patrick.rudolph@...ements.com>
>>>> Signed-off-by: Naresh Solanki <Naresh.Solanki@...ements.com>
>>>
>>> As I am sure I have mentioned before, this needs to primarily handle
>>> sysfs notifications to hwmon status attributes and to generate kobject
>>> events. Regulator events are secondary / optional.
>>
>> Based on previous feedback, PMBus interrupt handler is made generic
>> Based on the use case I have in my machine, my application need to 
>> monitor regulator event as soon as they occur and hence the patch.
>>
> 
> I understand, but this isn't just about your specific use case. Your use 
> case is
> what triggers the change, and ensures that the code change is tested, 
> but the
> impact by far reaches beyond your specific use case and needs to address 
> other
> (much more common) use cases as well. Interrupt support is needed in the 
> pmbus
> code, but it needs to address the common use case first, and that is 
> reporting
> the status via sysfs notifications and kobject events.
Agree. I've done the implementation. Will submit the change as separate 
patch along with the series.
> 
> Thanks,
> Guenter
> 
Regards,
Naresh