[PATCH v2 3/3] soc: rockchip: io-domain: do more thing about regulator notify

[jay.xu at rock-chips.com]

Hi Mark
--------------
jay.xu at rock-chips.com
>Hi Mark
>--------------
>jay.xu at rock-chips.com
>>On Tue, Aug 17, 2021 at 11:38:48AM +0800, Jianqun Xu wrote:
>>
>>> +	} else if (event & REGULATOR_EVENT_ENABLE) {
>>> +	uV = regulator_get_voltage(supply->reg);
>>>  } else {
>>
>>I am very surprised this doesn't cause locking issues given that we
>>might call notifiers with the regulator API's locks held.  Have you
>>tested this with lockdep on?
>Thanks for your reply, there really has locking issue, our test team fail to find out it
>but get a pass result.
>
>So, if the voltage cannot get here by driver, can the notify  pass it, like pre-version patch? 

I think it's possilbe to store the voltage in driver side, and do the io-domain config after EVENT_ENABLE
notify witout voltage, I will push it to io-domain maintainer to review, can I add yours' review in that patch ?