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Andiry Xu ad93562bde USB host: Move AMD PLL quirk to pci-quirks.c 
This patch moves the AMD PLL quirk code in OHCI/EHCI driver to pci-quirks.c,
and exports the functions to be used by xHCI driver later.

AMD PLL quirk disable the optional PM feature inside specific
SB700/SB800/Hudson-2/3 platforms under the following conditions:

1. If an isochronous device is connected to OHCI/EHCI/xHCI port and is active;
2. Optional PM feature that powers down the internal Bus PLL when the link is
   in low power state is enabled.

Without AMD PLL quirk, USB isochronous stream may stutter or have breaks
occasionally, which greatly impair the performance of audio/video streams.

Currently AMD PLL quirk is implemented in OHCI and EHCI driver, and will be
added to xHCI driver too. They are doing similar things actually, so move
the quirk code to pci-quirks.c, which has several advantages:

1. Remove duplicate defines and functions in OHCI/EHCI (and xHCI) driver and
   make them cleaner;
2. AMD chipset information will be probed only once and then stored.
   Currently they're probed during every OHCI/EHCI initialization, move
   the detect code to pci-quirks.c saves the repeat detect cost;
3. Build up synchronization among OHCI/EHCI/xHCI driver. In current
   code, every host controller enable/disable PLL only according to
   its own status, and may enable PLL while there is still isoc transfer on
   other HCs. Move the quirk to pci-quirks.c prevents this issue.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alex He <alex.he@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
 		2011-03-01 16:01:45 -05:00
..
accessibility
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acpi Merge branch 'iomem' into release 2011-02-15 15:25:48 -05:00
amba
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ata libata: set queue DMA alignment to sector size for ATAPI too 2011-01-28 03:16:20 -05:00
atm Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2011-01-24 13:17:06 -08:00
auxdisplay
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base PM / Runtime: Don't enable interrupts while running in_interrupt 2011-01-25 20:50:07 +01:00
block nbd: remove module-level ioctl mutex 2011-02-11 16:12:20 -08:00
bluetooth Bluetooth: ath3k: reduce memory usage 2011-01-19 14:40:41 -02:00
cdrom cdrom: support devices that have check_events but not media_changed 2011-02-09 14:22:37 +01:00
char Merge branch 'for-james' of git://tpmdd.git.sourceforge.net/gitroot/tpmdd/tpmdd into for-linus 2011-02-11 17:34:47 +11:00
clk
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clocksource drivers/clocksource/tcb_clksrc.c: fix init sequence 2011-01-26 10:50:04 +10:00
connector
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cpufreq kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
cpuidle Merge branch 'cpuidle-perf-events' into idle-test 2011-01-12 18:06:19 -05:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2011-01-13 10:25:58 -08:00
dca dca: remove unneeded NULL check 2011-01-13 08:03:09 -08:00
dio
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dma Merge branch 'imx' into dmaengine-fixes 2011-02-14 02:40:46 -08:00
edac amd64_edac: Fix DIMMs per DCTs output 2011-02-10 14:41:49 +01:00
eisa
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firewire Merge branches 'fixes' and 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2011-01-21 13:34:39 -08:00
firmware x86, dmi, debug: Log board name (when present) in dmesg/oops output 2011-02-15 04:20:57 +01:00
gpio drivers/gpio/pca953x.c: add a mutex to fix race condition 2011-02-11 16:12:20 -08:00
gpu drm/radeon/kms: hopefully fix pll issues for real (v3) 2011-02-15 09:18:51 +10:00
hid kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
hwmon hwmon: (emc1403) Fix I2C address range 2011-02-09 13:45:52 -08:00
i2c i2c: Encourage move to dev_pm_ops by warning on use of legacy methods 2011-01-14 22:03:50 +01:00
ide kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
idle fix a shutdown regression in intel_idle 2011-01-25 05:57:34 +10:00
ieee802154
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infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2011-02-03 11:19:26 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2011-02-15 09:40:27 -08:00
isdn isdn: hysdn: Kill (partially buggy) CVS regision log reporting. 2011-02-09 13:56:53 -08:00
leds leds: leds-pwm: return proper error if pwm_request failed 2011-01-26 10:49:58 +10:00
lguest lguest: compile fixes 2011-01-20 21:37:29 +10:30
macintosh powerpc/macintosh: Fix wrong test in fan_{read,write}_reg() 2011-01-21 14:08:34 +11:00
mca
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md FIX: md: process hangs at wait_barrier after 0->10 takeover 2011-02-08 11:49:02 +11:00
media Merge branch 'media_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 2011-02-02 17:52:19 -08:00
memstick memstick: factor out transfer initiating functionality in mspro_block.c 2011-01-13 08:03:22 -08:00
message
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mfd usb: host: omap: common usb host core driver 2011-03-01 17:02:22 +02:00
misc misc: Make AB8500_PWM driver depend on U8500 due to PWM breakage 2011-01-14 12:38:12 +01:00
mmc ARM: mmci: round down the bytes transferred on error 2011-01-31 10:53:37 +00:00
mtd Revert "UBI: use mtd->writebufsize to set minimal I/O unit size" 2011-01-29 18:27:13 +02:00
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2011-02-15 17:51:18 -08:00
nfc drivers/nfc/pn544.c: fix min_t warnings 2011-01-16 17:28:21 -08:00
nubus
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of dt/flattree: Return virtual address from early_init_dt_alloc_memory_arch() 2011-01-15 22:01:58 -07:00
oprofile
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parisc
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parport parport: make lockdep happy with waitlist_lock 2011-01-26 10:49:59 +10:00
pci pci: use security_capable() when checking capablities during config space read 2011-02-15 19:06:31 +11:00
pcmcia kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
platform intel_scu_ipc: remove duplicated #include 2011-01-31 12:59:34 +10:00
pnp Merge branch 'pnp' into release 2011-01-12 04:59:44 -05:00
power Merge git://git.infradead.org/battery-2.6 2011-01-14 09:25:59 -08:00
pps pps: claim parallel port exclusively 2011-01-26 10:50:00 +10:00
ps3
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rapidio rapidio: fix new kernel-doc warnings 2011-01-22 20:32:37 -08:00
regulator regulator: Support MAX8998/LP3974 DVS-GPIO 2011-01-14 12:38:16 +01:00
rtc Merge branch 'rtc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-02-14 10:10:07 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2011-02-04 13:20:01 -08:00
sbus
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scsi [SCSI] libsas: fix runaway error handler problem 2011-01-24 11:52:33 -06:00
sfi SFI: use ioremap_cache() instead of ioremap() 2011-01-11 23:27:25 -05:00
sh sh: update INTC to clear IRQ sense valid flag 2011-01-19 19:02:35 +09:00
sn
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spi spi/spi_sh_msiof: fix wrong address calculation, which leads to an Oops 2011-01-21 09:26:24 -07:00
ssb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2011-02-08 12:03:54 -08:00
staging Merge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6 2011-02-10 12:19:23 -08:00
target [SCSI] target: Add LIO target core v4.0.0-rc6 2011-01-14 10:12:29 -06:00
tc
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telephony Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-01-13 10:05:56 -08:00
thermal Merge branch 'misc' into release 2011-01-12 05:14:15 -05:00
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2011-02-15 17:51:18 -08:00
uio
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usb USB host: Move AMD PLL quirk to pci-quirks.c 2011-03-01 16:01:45 -05:00
uwb drivers:uwb:scan.c remove one to many l's in the word. 2011-02-25 11:52:21 -08:00
vhost vhost: rcu annotation fixup 2011-02-01 16:48:46 +02:00
video console: rename acquire/release_console_sem() to console_lock/unlock() 2011-01-26 10:50:06 +10:00
virtio virtio: remove virtio-pci root device 2011-01-20 21:37:30 +10:30
vlynq
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w1 drivers/w1/masters/omap_hdq.c: add missing clk_put 2011-02-11 16:12:20 -08:00
watchdog m68knommu: Rename m548x_wdt.c to m54xx_wdt.c 2011-02-08 15:07:45 +10:00
xen Merge branch 'xen/xenbus' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen 2011-01-20 16:37:28 -08:00
zorro
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Kconfig [SCSI] target: Add LIO target core v4.0.0-rc6 2011-01-14 10:12:29 -06:00
Makefile Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2011-01-20 16:39:23 -08:00