Re: [PATCH v2 1/7] extcon: usb-gpio: Introduce gpio usb extcon driver

[Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>]

On 29/01/15 18:56, Tony Lindgren wrote:
> * Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org> [150129 03:34]:
>> On 28/01/15 19:09, Tony Lindgren wrote:
>>> * Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org> [150128 04:15]:
>>>> On 28/01/15 04:19, Chanwoo Choi wrote:
>>>>>>
>>>>>> I still fail to understand that we need to call disable_irq() in .suspend() and
>>>>>> enable_irq() in .resume()
>>>>>>
>>>>>> can you point me to any other drivers doing so?
>>>>>
>>>>> You can refer the suspend function in drivers/mfd/max14577.c or drivers/mfd/max77693.c.
>>>>> The max14577_suspend() includes the detailed comment for why using disable_irq() in suspend function.
>>>>>
>>>>> In max14577 case, max14577_suspend() use disable_irq() function because of i2c dependency.
>>>>> If max14577 device is wake-up from suspend state before completing the resume sequence
>>>>> of i2c, max14577 may fail to read/write i2c communication.
>>>>
>>>> Thanks for this information. I will add disable/enable_irq() in suspend/resume().
>>>
>>> Are the .dts changes safe for me to apply already?
>>>
>>
>> Yes Tony, you can pick them. Thanks.
> 
> OK will apply the dts changes into omap-for-v3.20/dt thanks.
> I have also the defconfig changes tagged, will apply those
> a bit later probably as a fix after the driver is merged.

Sounds good to me. Thanks Tony.

cheers,
-roger
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