linux.git/drivers/usb/host, branch v2.6.24

usb: Remove broken optimisation in OHCI IRQ handler

2007-12-17T18:47:15+00:00

The OHCI IRQ handler has an optimisation that avoids reading some
chip registers when the controller reports that the interrupt was
triggered *only* because completed requests were written into the
controller's "done list" and handed to the host.

This mechanism can't be used on some controllers.  Among others, it
fails for the SA1111 and the AMCC 440EP PowerPC processor.

This patch removes the optimisation and makes the code clearer.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: use IRQF_DISABLED for HCD interrupt handlers

2007-12-17T18:47:15+00:00

Host controller IRQs are supposed to be serviced with interrupts
disabled.  This patch (as1026) adds an IRQF_DISABLED flag to all the
controller drivers that lack it.  It also replaces the
spin_lock_irqsave() and spin_unlock_irqrestore() calls in uhci_irq()
with simple spin_lock() and spin_unlock().

This fixes Bugzilla #9335.

Signed-off-by: Alan Stern 
Acked-by: David Brownell 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

USB: fix up EHCI startup synchronization

2007-11-28T21:58:36+00:00

A recent patch added software synchronization during EHCI startup,
so ports aren't switched away from the companion controllers after
resets have started.  This patch adds a short delay letting hardware
finish that port switching before any new resets begin ... so both
ends of that hardware race window are closed.

Signed-off-by: David Brownell 
Cc: Dave Miller 
Cc: Dely Sy 
Cc: stable 
Cc: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

USB: fix USB_OHCI_HCD_SSB dependencies

2007-11-28T21:58:32+00:00

This patch fixes a bug introduced by
commit b22817b3c81cdb18ffe3d2debfee968731a8b5f4.

Signed-off-by: Adrian Bunk 
Cc: Ingo Molnar 
Cc: Michael Buesch 
Signed-off-by: Greg Kroah-Hartman

USB: remove new OHCI build warnings

2007-10-25T19:18:45+00:00

Remove various newly-introduced compiler warnings for OHCI.

Signed-off-by: David Brownell 
Signed-off-by: Greg Kroah-Hartman

USB: fix ssb_ohci_probe() build bug

2007-10-25T19:18:44+00:00

fix ssb_ohci_probe() build bug:

 drivers/built-in.o: In function `ssb_ohci_probe':
 ohci-hcd.c:(.text+0xbff39): undefined reference to `ssb_device_enable'
 ohci-hcd.c:(.text+0xbff6f): undefined reference to `ssb_admatch_base'
 ohci-hcd.c:(.text+0xbff8b): undefined reference to `ssb_admatch_size'
 ohci-hcd.c:(.text+0xbffe5): undefined reference to `ssb_device_disable'
 [...]

the reason was that this Kconfig combination was allowed:

 CONFIG_SSB=m
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_OHCI_HCD_SSB=y

the fix is to require a modular USB_OHCI_HCD build when SSB is modular.

Signed-off-by: Ingo Molnar 
Acked-by: Michael Buesch 
Signed-off-by: Greg Kroah-Hartman

USB: fix scheduling of Iso URBs in uhci-hcd

2007-10-25T19:18:43+00:00

This patch (as1003) changes uhci-hcd to treat the URB_ISO_ASAP flag
the same as other host controller drivers, namely, to schedule an Iso
URB for the first available time slot that hasn't already expired.
URBs in which the flag isn't set will be scheduled for the first slot
following the last URB, even if it has expired.

This fixes a problem reported by Martin Bachem.

Signed-off-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

Fix misspellings of "system", "controller", "interrupt" and "necessary".

2007-10-19T21:10:43+00:00

Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".

Signed-off-by: Robert P. J. Day 
Signed-off-by: Adrian Bunk

Add missing newlines to some uses of dev_ messages

2007-10-18T21:37:28+00:00

Found these while looking at printk uses.

Add missing newlines to dev_ uses
Add missing KERN_ prefixes to multiline dev_s
Fixed a wierd->weird spelling typo
Added a newline to a printk

Signed-off-by: Joe Perches 
Cc: "Luck, Tony" 
Cc: Jens Axboe 
Cc: Mark M. Hoffman 
Cc: Roland Dreier 
Cc: Tilman Schmidt 
Cc: David Woodhouse 
Cc: Jeff Garzik 
Cc: Stephen Hemminger 
Cc: Greg KH 
Cc: Jeremy Fitzhardinge 
Cc: Geert Uytterhoeven 
Cc: Alessandro Zummo 
Cc: David Brownell 
Cc: James Smart 
Cc: Andrew Vasquez 
Cc: "Antonino A. Daplas" 
Cc: Evgeniy Polyakov 
Cc: Russell King 
Cc: Jaroslav Kysela 
Cc: Takashi Iwai 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Fix ohci-ssb with !CONFIG_PM

2007-10-14T01:18:30+00:00

ohci_bus_{suspend,resume} exists only if we have CONFIG_PM; do the same
thing as other subdrivers...

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds