Re: [RESEND PATCH 3/4] usb: dwc2: assert phy reset when waking up in rk3288 platform

[Felipe Balbi <felipe.balbi@linux.intel.com>]

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Hi,

John Youn <John.Youn@synopsys.com> writes:

[...]

>>>> +			 */
>>>> +			if (of_device_is_compatible(np, "rockchip,rk3288-usb"))
>>>> +				hsotg->phy->ops->reset(hsotg->phy);
>>>> +
>>>
>>> You should probably check for NULL before calling the reset()
>>> callback.
>> Sure.
>>>
>>> Also, I'd rather see a generic quirk property that you set for your
>>> platform.
>>>
>>> Something like "phy_reset_on_wakeup_quirk".
>> But Rob Herring want me to implied by the SoC specific compatible 
>> string. I agree with him. It is certainly bug in RK3288 platform.
>> It is no found no the other platform.
>
> Ok, I missed that before.
>
> Based on the drivers I'm familiar with (like dwc3), you would
> typically add a "quirk" anyways.
>
> Felipe,
>
> Do you have some policy or preference on this?

if it's not a dwc2-generic feature, then let's do it via compatible
flag, sure. What we don't want is for things like:

if (is_compatible('synopsys') || is_compatible('rockchip') ||
	is_compatible('foobar') ... )

For that, we'd be better of adding a generic quirk flag which several
can use.

-- 
balbi

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