[RFC] Generic PHY interface extention for dynamic configuration

[Shawn Lin]

Hi Kishon,

	Now, Generic PHY framework just provide four interfaces(AKA: 
init/exit/power_on/power_off). Also, these fours itfs take struct phy as
unique argument.Is it means that the generic PHY framework can't support 
to modify PHY configuration at run-time for diff cases?
	Actually I'm writing some code for supporting emmc controller's phy. 
And sometimes it indeed need to modify the phy's configuration. But I 
have no idea about how to deal with it in current framework. So I send 
this RFC to you and mailing.
	
Thanks.

--
Best Regards
Shawn Lin

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