[PATCH] USB: ehci power fixes

Miscellaneous updates for EHCI.

 - Mostly updates the power switching on EHCI controllers.  One routine
   centralizes the "power on/off all ports" logic, and the capability to
   do that is reported more correctly.

 - Courtesy Colin Leroy, a patch to always power up ports after resumes
   which didn't keep a USB device suspended.  The reset-everything logic
   powers down those ports (on some hardware) so something needs to turn
   them back on.

 - Minor tweaks/bugfixes for the debug port support.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 2373537fabed..02fefab3501e 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -281,6 +281,8 @@ ehci_hub_descriptor (
         temp = 0x0008;                  /* per-port overcurrent reporting */
         if (HCS_PPC (ehci->hcs_params))
                 temp |= 0x0001;         /* per-port power control */
+        else
+                temp |= 0x0002;         /* no power switching */
 #if 0
 // re-enable when we support USB_PORT_FEAT_INDICATOR below.
         if (HCS_INDICATOR (ehci->hcs_params))