USB: EHCI: remove ehci_port_power() routine

This patch (as1623) removes the ehci_port_power() routine and all the
places that call it.  There's no reason for ehci-hcd to change the
port power settings; the hub driver takes care of all that stuff.

There is one exception: When the controller is resumed from
hibernation or following a loss of power, the ports that are supposed
to be handed over to a companion controller must be powered on first.
Otherwise the handover won't work.  This process is not visible to the
hub driver, so it has to be handled in ehci-hcd.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 7 deletions

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 2de089001ae9..94ee3212094e 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -280,7 +280,6 @@ static void tegra_ehci_shutdown(struct usb_hcd *hcd)
 static int tegra_ehci_setup(struct usb_hcd *hcd)
 {
         struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-        int retval;
 
         /* EHCI registers start at offset 0x100 */
         ehci->caps = hcd->regs + 0x100;
@@ -288,12 +287,7 @@ static int tegra_ehci_setup(struct usb_hcd *hcd)
         /* switch to host mode */
         hcd->has_tt = 1;
 
-        retval = ehci_setup(hcd);
-        if (retval)
-                return retval;
-
-        ehci_port_power(ehci, 1);
-        return retval;
+        return ehci_setup(hcd);
 }
 
 struct dma_aligned_buffer {