Alan Stern
05768918b9
USB: improve port transitions when EHCI starts up ...
It seems to be getting more common recently for EHCI host controllers
to be probed after their companion UHCI or OHCI controllers. This may
be caused partly by splitting the ehci-pci driver out from ehci-hcd,
or it may be caused by changes in the way the kernel does driver
probing.
Regardless, it has a tendency to cause problems. When an EHCI
controller is initialized, it takes ownership of all the ports away
from the companions. In effect, it forcefully disconnects all the USB
devices that may already be using a companion controller.
This patch (as1672b) tries to make the transition more orderly by
deconfiguring the root hubs for all the companion controllers before
initializing the EHCI controller, and reconfiguring them afterward.
The result is a soft disconnect rather than a hard one.
Internally, the patch refactors the code involved in associating EHCI
controllers with their companions. The old approach, in which a
single function is called with an argument telling it what to do (the
companion_action enum), has been replaced with a scheme using multiple
callback functions, each performing a single task.
This patch won't solve all the problems people encounter when their
EHCI controllers start up, but it will at least reduce the number of
error messages generated by the unexpected disconnections.
Signed-off-by: Alan Stern <[email protected] >
Tested-by: Jenya Y <[email protected] >
Signed-off-by: Greg Kroah-Hartman <[email protected] >
2013-03-28 14:45:57 -07:00
Fixes:
2013-03-12 20:25:53 -07:00
ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME
2013-03-15 17:20:02 +00:00
Simple stuff. See one-line summaries.
2013-03-23 12:33:36 -07:00
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
ACPI and power management fixes for 3.9-rc2
2013-03-07 14:54:28 -08:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2013-03-01 13:52:03 -05:00
Merge git://git.infradead.org/users/willy/linux-nvme
2013-03-22 16:43:53 -07:00
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
2013-03-13 13:29:56 -04:00
Simple virtio-rng fix.
2013-03-12 20:28:45 -07:00
clk: vt8500: Fix "fix device clock divisor calculations"
2013-03-14 22:34:26 +01:00
ImgTec Meta architecture changes for v3.9-rc1
2013-03-03 12:06:09 -08:00
proc connector: reject unprivileged listener bumps
2013-02-27 13:08:35 -05:00
cpufreq / intel_pstate: Do not load on VM that does not report max P state.
2013-03-06 23:40:11 +01:00
arm-soc: soc-specific updates
2013-02-21 15:27:22 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2013-02-25 15:56:15 -08:00
dca: convert to idr_alloc()
2013-02-27 19:10:15 -08:00
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2013-03-03 10:20:22 -08:00
EDAC: Merge mci.mem_is_per_rank with mci.csbased
2013-03-16 06:32:30 +01:00
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
firewire: convert to idr_alloc()
2013-02-27 19:10:15 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2013-03-09 16:51:13 -08:00
Two patches for Device Tree on at91sam9x5/NAND.
2013-03-14 23:55:59 +01:00
KMS: fix EDID detailed timing frame rate
2013-03-23 10:46:10 -07:00
USBHID: don't recover device if suspend fails in system sleep
2013-03-25 10:55:46 -07:00
hsi: fix kernel-doc warnings
2013-03-01 13:39:00 -08:00
Drivers: hv: vmbus: Use the new infrastructure for delivering VMBUS interrupts
2013-02-27 10:15:53 -08:00
hwmon: (lm75.h) Update header inclusion
2013-03-18 21:19:49 +01:00
Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2013-03-23 12:32:14 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-02-22 19:25:09 -08:00
First round of iio fixes post the 3.9 merge window.
2013-03-06 05:48:24 +08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-03-19 13:20:51 -07:00
arm-soc: bug fixes for 3.9-rc3
2013-03-18 08:17:14 -07:00
iommu, x86: Add DMA remap fault reason
2013-03-06 09:41:51 +01:00
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
irqchip: fix typo when moving gic_raise_softirq()
2013-03-04 17:15:33 -08:00
isdn: hisax: netjet requires VIRT_TO_BUS
2013-03-17 12:01:10 -04:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2013-02-26 09:29:02 -08:00
All trivial, thanks to the stuff which didn't quite make it time.
2013-02-26 14:49:12 -08:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-02-23 17:09:55 -08:00
mailbox, pl320-ipc: remove __init from probe function
2013-03-04 14:23:11 +01:00
A few bugfixes for md
2013-03-23 15:49:49 -07:00
arm-soc: late OMAP changes
2013-02-28 20:00:40 -08:00
memstick: move the dereference below the NULL test
2013-02-27 19:10:23 -08:00
mfd: twl4030-madc: Remove __exit_p annotation
2013-03-15 07:42:22 +01:00
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
Merge branches 'devel-stable', 'fixes' and 'mmci' into for-linus
2013-03-03 00:32:50 +00:00
MTD fixes for 3.9
2013-03-18 08:27:41 -07:00
usbnet: smsc75xx: don't recover device if suspend fails in system sleep
2013-03-25 10:55:47 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2013-02-21 17:54:03 -08:00
PCI: Use ROM images from firmware only if no other ROM source available
2013-03-19 14:51:14 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2013-02-21 17:40:58 -08:00
ARM: at91: add gpio suspend/resume support when using pinctrl
2013-03-14 09:37:42 +01:00
Platform: x86: chromeos_laptop : Add basic platform data for atmel devices
2013-03-08 16:03:29 -08:00
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
power: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
drivers/pps/clients/pps-gpio.c: use devm_kzalloc
2013-02-27 19:10:23 -08:00
pwm: Changes for v3.9-rc1
2013-02-26 09:34:29 -08:00
Merge remote-tracking branch 'regulator/fix/twl' into tmp
2013-03-05 10:12:43 +08:00
remoteproc: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
rpmsg: convert to idr_alloc()
2013-02-27 19:10:18 -08:00
drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR
2013-03-22 16:41:20 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2013-03-19 13:20:51 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-02-26 20:16:07 -08:00
ACPI / glue: Add .match() callback to struct acpi_bus_type
2013-03-04 14:23:40 +01:00
arm-soc: soc-specific updates
2013-02-21 15:27:22 -08:00
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next
2013-02-22 10:07:30 +01:00
Merge branch 'usb-linus' into usb-next
2013-03-20 16:21:47 -07:00
target/pscsi: Reject cross page boundary case in pscsi_map_sg
2013-03-19 17:31:14 -07:00
thermal: exynos_thermal: return a proper error code while thermal_zone_device_register fail.
2013-03-11 23:09:29 +08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
2013-03-19 14:47:11 -07:00
uio: convert to idr_alloc()
2013-02-27 19:10:19 -08:00
USB: improve port transitions when EHCI starts up
2013-03-28 14:45:57 -07:00
vfio: include <linux/slab.h> for kmalloc
2013-03-15 12:58:20 -06:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2013-03-23 16:51:55 -07:00
drivers/video/ep93xx-fb.c: include <linux/io.h> for devm_ioremap()
2013-03-22 16:41:20 -07:00
All trivial, thanks to the stuff which didn't quite make it time.
2013-02-26 14:49:12 -08:00
w1: fix oops when w1_search is called from netlink connector
2013-03-12 16:20:46 -07:00
watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
2013-03-22 23:21:55 +01:00
Fixes:
2013-03-12 20:25:53 -07:00
new helper: file_inode(file)
2013-02-22 23:31:31 -05:00
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2013-02-23 17:09:55 -08:00
05768918b9