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authorAlan Stern <stern@rowland.harvard.edu>2012-10-31 13:21:06 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-31 15:48:07 -0400
commitc73cee717e7d5da0698acb720ad1219646fe4f46 (patch)
tree7905e61101886695d291e39c7c2ee4042e2e6f70 /drivers/usb/host/ehci-grlib.c
parent4968f951913997adc8c68c4e986e8168ee1d2998 (diff)
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>
Diffstat (limited to 'drivers/usb/host/ehci-grlib.c')
-rw-r--r--drivers/usb/host/ehci-grlib.c18
1 files changed, 1 insertions, 17 deletions
diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c
index 3180cb3624d..da4269550fb 100644
--- a/drivers/usb/host/ehci-grlib.c
+++ b/drivers/usb/host/ehci-grlib.c
@@ -34,22 +34,6 @@
34 34
35#define GRUSBHC_HCIVERSION 0x0100 /* Known value of cap. reg. HCIVERSION */ 35#define GRUSBHC_HCIVERSION 0x0100 /* Known value of cap. reg. HCIVERSION */
36 36
37/* called during probe() after chip reset completes */
38static int ehci_grlib_setup(struct usb_hcd *hcd)
39{
40 struct ehci_hcd *ehci = hcd_to_ehci(hcd);
41 int retval;
42
43 retval = ehci_setup(hcd);
44 if (retval)
45 return retval;
46
47 ehci_port_power(ehci, 1);
48
49 return retval;
50}
51
52
53static const struct hc_driver ehci_grlib_hc_driver = { 37static const struct hc_driver ehci_grlib_hc_driver = {
54 .description = hcd_name, 38 .description = hcd_name,
55 .product_desc = "GRLIB GRUSBHC EHCI", 39 .product_desc = "GRLIB GRUSBHC EHCI",
@@ -64,7 +48,7 @@ static const struct hc_driver ehci_grlib_hc_driver = {
64 /* 48 /*
65 * basic lifecycle operations 49 * basic lifecycle operations
66 */ 50 */
67 .reset = ehci_grlib_setup, 51 .reset = ehci_setup,
68 .start = ehci_run, 52 .start = ehci_run,
69 .stop = ehci_stop, 53 .stop = ehci_stop,
70 .shutdown = ehci_shutdown, 54 .shutdown = ehci_shutdown,