[PATCH v4 0/2] usb: ehci: add portpower override

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Changes for v3:
- Using struct ehci_hcd * instead of struct usb_hcd * for ehci_port_power
's the 1st parameter
- Call ehci_port_power at every places which port power needs to be
changed.
- Call platform defined hcd->driver->port_power at ehci_port_power
if it is defined
- Clear PORT_RWC bits before toggle PORT_POWER at ehci_port_power
- the platform code chipidea/host.c doesn't need to call ehci_port_power,
it only defines platform port control behaviour.

Hi Alan & Michael,
At the 1st patch, it defines ehci_port_power for ehci uses, it toggles
port power bits as well as call platform callback hcd->driver->port_power
if it is defined.

At the 2nd patch, the chipidea platform code defines hcd->driver->port_power
callback, it toggles regulator during the current design, and only single
port is supported now.

These two patches are tested at two imx6 platforms.

Michael Grzeschik (2):
  usb: ehci: add ehci_port_power interface
  usb: chipidea: host: add portpower override

 drivers/usb/chipidea/host.c |   67 +++++++++++++++++++++++++++++--------------
 drivers/usb/host/ehci-hcd.c |    9 +++++-
 drivers/usb/host/ehci-hub.c |   45 ++++++++++++++++++++---------
 drivers/usb/host/ehci.h     |    2 ++
 include/linux/usb/hcd.h     |    3 ++
 5 files changed, 91 insertions(+), 35 deletions(-)

-- 
1.7.9.5

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