USB: Fix of_usb_get_dr_mode_by_phy with a shared phy block

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Some SoCs have a single phy-hw-block with multiple phys, this is
modelled by a single phy dts node, so we end up with multiple
controller nodes with a phys property pointing to the phy-node
of the otg-phy.

Only one of these controllers typically is an otg controller, yet we
were checking the first controller who uses a phy from the block and
then end up looking for a dr_mode property in e.g. the ehci controller.

This commit fixes this by adding an arg0 parameter to
of_usb_get_dr_mode_by_phy and make of_usb_get_dr_mode_by_phy
check that this matches the phandle args[0] value when looking for
the otg controller.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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Hans de Goede 2016-06-10 11:46:25 +02:00 • committed by Felipe Balbi

parent 882bd9fc46

commit ce15ed4c5d

3 changed files with 23 additions and 9 deletions

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include/linux/usb/of.h

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