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usb: Increase timeout value for device reset
authorDinh Nguyen <Dinh.Nguyen@freescale.com>
Tue, 13 Apr 2010 16:13:15 +0000 (11:13 -0500)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 22 Apr 2010 22:18:29 +0000 (15:18 -0700)
It seems that for USB IP on Freescale MX5x processors, it needs >750
usec for the reset to complete. This change should not hurt any other
EHCI hardware.

Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/host/ehci-hub.c patch | blob | blame | history

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 19372673bf09aadffc955c2ca531b8133b219149..c7178bcde67a99da38c2e08b1b2a8bb4481a7a14 100644 (file)
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -801,7 +801,7 @@ static int ehci_hub_control (
                         * this bit; seems too long to spin routinely...
                         */
                        retval = handshake(ehci, status_reg,
-                                       PORT_RESET, 0, 750);
+                                       PORT_RESET, 0, 1000);
                        if (retval != 0) {
                                ehci_err (ehci, "port %d reset error %d\n",
                                        wIndex + 1, retval);