USB: EHCI: make CONFIG_USB_EHCI_TT_NEWSCHED default to Y

This patch (as1382) changes the USB_EHCI_TT_NEWSCHED Kconfig option to
be non-experimental and to default to Y.  This option has existed for
a long time, and I have not heard any complaints concerning it.  By
contrast, several people have reported that their devices could be
made to work only by enabling the option.

The point of changing the default is to cause the option to be enabled
by distros that simply use the default settings for esoteric things
like this.

This change was motivated by Bugzilla #15649.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index f865be2..2d926ce 100644 (file)
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -72,8 +72,9 @@ config USB_EHCI_ROOT_HUB_TT
          from ARC, and has since changed hands a few times.
 
 config USB_EHCI_TT_NEWSCHED
-       bool "Improved Transaction Translator scheduling (EXPERIMENTAL)"
-       depends on USB_EHCI_HCD && EXPERIMENTAL
+       bool "Improved Transaction Translator scheduling"
+       depends on USB_EHCI_HCD
+       default y
        ---help---
          This changes the periodic scheduling code to fill more of the low
          and full speed bandwidth available from the Transaction Translator
@@ -84,9 +85,11 @@ config USB_EHCI_TT_NEWSCHED
          If you have multiple periodic low/fullspeed devices connected to a
          highspeed USB hub which is connected to a highspeed USB Host
          Controller, and some of those devices will not work correctly
-         (possibly due to "ENOSPC" or "-28" errors), say Y.
+         (possibly due to "ENOSPC" or "-28" errors), say Y.  Conversely, if
+         you have only one such device and it doesn't work, you could try
+         saying N.
 
-         If unsure, say N.
+         If unsure, say Y.
 
 config USB_EHCI_BIG_ENDIAN_MMIO
        bool