usb: phy: Add interface to get phy give of device_node.

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Split the "get phy from device_node" functionality out of
"get phy by phandle" so it can be used directly.

This is useful when a battery-charger is intimately associated with a
particular phy but handled by a separate driver.  The charger
can find the device_node based on sibling relationships
without the need for a redundant declaration in the devicetree
description.

As a peripheral that gets a phy will often want to register a
notifier block, and de-register it later, that functionality
is included so the de-registration is automatic.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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NeilBrown 2015-03-23 09:52:48 +11:00 • committed by Felipe Balbi

parent 11bece5e06

commit e842b84c8e

2 changed files with 72 additions and 27 deletions

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97

drivers/usb/phy/phy.c

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2

include/linux/usb/phy.h

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