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3f02a957d5
linux/drivers
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Enrico Scholz 3f02a957d5 usb: ISP1760: improve pre-fetch timing 
ISP1760 requires a delay of 90ns between programming the address and
reading the data.  Current driver solves this by a mdelay(1) which is
very heavy weighted and slow.  This patch applies the workaround from
the ISP1760 FAQ by using two different banks for PTD and payload data
and using a common wait for them.  This wait is done by an additional
ISP1760 access (whose timing constraints guarantee the 90ns delay).
This improves speed when reading from an USB stick from:

  $ time dd if=/dev/sda of=/dev/zero bs=65536 count=1638
  real    1m 15.43s
  user    0m 0.44s
  sys     0m 39.46s

to

  $ time dd if=/dev/sda of=/dev/zero bs=65536 count=1638
  real    0m 18.53s
  user    0m 0.16s
  sys     0m 12.97s

[bigeasy@linutronix.de: fixed comment formating, moved define into
   header file, obey 80 char rule]

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-08-13 17:32:53 -07:00
..
accessibility
acpi Remove newline from the description of module parameters 2008-08-01 12:46:41 -07:00
amba
ata avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> 2008-08-05 14:36:57 +02:00
atm atm: fix direct casts of pointers to u32 in the InterPhase driver 2008-07-30 16:33:05 -07:00
auxdisplay auxdisplay: small cleanups 2008-07-24 10:47:41 -07:00
base Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-08-01 11:52:39 -07:00
block xen-blkfront.c: make blkif_ioctl() static 2008-08-06 12:30:04 +02:00
bluetooth [Bluetooth] Add full quirk implementation for btusb driver 2008-08-07 22:26:56 +02:00
cdrom cdrom: don't check CDC_PLAY_AUDIO in cdrom_count_tracks() 2008-08-05 18:17:02 +02:00
char crypto: padlock - fix VIA PadLock instruction usage with irq_ts_save/restore() 2008-08-13 22:02:26 +10:00
clocksource
connector
cpufreq [CPUFREQ] Fix -Wshadow warning in conservative governor. 2008-08-08 16:00:48 -04:00
cpuidle cpuidle: make sysfs attributes sysdev class attributes 2008-08-12 16:07:28 -07:00
crypto crypto: padlock - fix VIA PadLock instruction usage with irq_ts_save/restore() 2008-08-13 22:02:26 +10:00
dca Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2008-07-23 12:03:18 -07:00
dio
dma Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-08-08 11:38:42 -07:00
edac edac: mpc85xx fix pci ofdev 2nd pass 2008-07-25 10:53:49 -07:00
eisa driver core: remove DEVICE_NAME_SIZE define 2008-07-21 21:54:53 -07:00
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-08-06 12:03:43 -07:00
firmware firmware/memmap: cleanup 2008-08-12 16:07:31 -07:00
gpio gpio: max732x driver 2008-07-25 10:53:30 -07:00
gpu Remove newline from the description of module parameters 2008-08-01 12:46:41 -07:00
hid Merge branches 'upstream' and 'upstream-fixes' into for-linus 2008-07-23 15:26:10 +02:00
hwmon hwmon: (lm75) Drop legacy i2c driver 2008-08-10 22:56:16 +02:00
i2c i2c: correct some size_t printk formats 2008-08-10 22:56:16 +02:00
ide [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
ieee1394 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
infiniband Merge branches 'ehca' and 'ipoib' into for-linus 2008-08-12 13:52:54 -07:00
input Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-08-08 11:38:42 -07:00
isdn Add DIP switch readout for HFC-4S IOB4ST 2008-08-02 16:40:37 +02:00
leds [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
lguest lguest: use get_user_pages_fast() instead of get_user_pages() 2008-08-12 17:52:53 +10:00
macintosh remove unnecessary <linux/hdreg.h> includes 2008-08-05 18:16:58 +02:00
mca driver core: remove DEVICE_NAME_SIZE define 2008-07-21 21:54:53 -07:00
md Merge branch 'for-linus' of git://neil.brown.name/md 2008-08-01 11:56:07 -07:00
media Merge Linus' latest into master 2008-08-08 19:18:18 +01:00
memstick memstick: use fully asynchronous request processing 2008-07-26 12:00:04 -07:00
message Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-07-27 10:04:52 -07:00
mfd mfd: tc6393 cleanup and update 2008-08-10 23:32:07 +02:00
misc GRU: fix preprocessor symbol for sparse 2008-08-12 16:07:29 -07:00
mmc mfd: have TMIO drivers and subdevices depend on ARM 2008-08-10 23:30:34 +02:00
mtd mfd: have TMIO drivers and subdevices depend on ARM 2008-08-10 23:30:34 +02:00
net uninline atl1e_setup_mac_ctrl() 2008-08-09 11:15:13 -07:00
nubus
of spi: Add OF binding support for SPI busses 2008-07-25 22:34:40 -04:00
oprofile
parisc
parport make parport_cs_release() static 2008-07-26 12:00:11 -07:00
pci PCI: Limit VPD length for Broadcom 5708S 2008-08-07 17:47:37 -07:00
pcmcia [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
pnp PNP: fix formatting of dbg_pnp_show_resources() output 2008-08-01 12:46:41 -07:00
power [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
ps3
rapidio
regulator regulator: TI bq24022 Li-Ion Charger driver 2008-07-30 10:10:23 +01:00
rtc rtc-isl1208: fix double removal of a sysfs entry 2008-08-12 16:07:28 -07:00
s390 [S390] qeth: avoid use of include/asm-s390 2008-08-01 16:39:36 +02:00
sbus sparc64: fix up bus_id changes in sparc core code 2008-07-21 21:55:03 -07:00
scsi make struct scsi_dh_devlist's static 2008-08-11 12:20:31 -07:00
serial [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
sh sh: Fix up broken kerneldoc comments. 2008-08-04 12:51:06 +09:00
sn
spi [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
ssb
tc
telephony ixj: push BKL into driver and wrap ioctls 2008-07-25 10:53:43 -07:00
thermal
uio UIO: add generic UIO platform driver 2008-07-21 21:54:55 -07:00
usb usb: ISP1760: improve pre-fetch timing 2008-08-13 17:32:53 -07:00
video fbcon: prevent cursor disappearance after switching to 512 character font 2008-08-12 16:07:29 -07:00
virtio virtio: Add transport feature handling stub for virtio_ring. 2008-07-25 12:06:14 +10:00
w1
watchdog ALi M7101 PMU also available on Sun Netra's too 2008-08-12 16:07:31 -07:00
xen sysdev: Pass the attribute to the low level sysdev show/store function 2008-07-21 21:55:02 -07:00
zorro move memory_read_from_buffer() from fs.h to string.h 2008-07-24 10:47:13 -07:00
Kconfig
Makefile regulator: core kbuild files 2008-07-30 10:10:22 +01:00