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David Woodhouse 3e3183bab0 [PATCH] SCX200_ACB: eliminate spurious timeout errors 
While busy-waiting for completion, check the hardware after scheduling;
don't schedule and then immediately check the _timeout_.  If the yield()
took a long time (as it does on my OLPC prototype board when it's busy),
we'd report a timeout even though the hardware was now ready.

This fixes it, and also switches the yield() for a cond_resched() because
we don't actually want to be _that_ nice about it.  I see nice
tightly-packed SMBus transactions now, rather than waiting for milliseconds
between successive phases.

Actually, we shouldn't be busy-waiting here at all.  We should be using
interrupts.  That's an exercise for another day though.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Cc: Christer Weinigel <wingel@nano-system.com>
Cc: <Jordan.Crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-08-06 08:57:49 -07:00
..
acorn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
acpi [PATCH] memory hotadd fixes: avoid registering res twice 2006-08-06 08:57:49 -07:00
amba [PATCH] 64bit resource: fix up printks for resources in misc drivers 2006-06-27 09:23:59 -07:00
atm [ATM]: Typo in drivers/atm/Kconfig... 2006-07-08 13:30:09 -07:00
base [PATCH] cpu hotplug: use hotplug version of registration in late inits 2006-07-31 13:28:39 -07:00
block [PATCH] nbd: Abort request on data reception failure 2006-07-31 13:28:39 -07:00
bluetooth [Bluetooth] Enable SCO support for Broadcom HID proxy dongle 2006-07-24 12:44:34 -07:00
cdrom [PATCH] cdrom: fix bad cgc.buflen assignment 2006-07-10 13:24:15 -07:00
char [PATCH] pSeries: hvsi char driver janitorial cleanup 2006-08-06 08:57:48 -07:00
clocksource [PATCH] GTOD: add scx200 HRT clocksource 2006-06-26 09:58:21 -07:00
connector [PATCH] Process Events: Fix biarch compatibility issue. use __u64 timestamp 2006-07-31 13:28:36 -07:00
cpufreq [CPUFREQ] [2/2] demand load governor modules. 2006-07-31 18:37:06 -04:00
crypto [CRYPTO] padlock: Fix alignment after aes_ctx rearrange 2006-07-15 11:08:50 +10:00
dio
dma [I/OAT]: Remove pci_module_init() from Intel I/OAT DMA engine 2006-07-21 14:50:13 -07:00
edac [PATCH] drivers/edac/edac_mc.h must #include <linux/platform_device.h> 2006-08-06 08:57:46 -07:00
eisa Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
fc4 [SCSI] More buffer->request_buffer changes 2006-07-14 09:41:13 -05:00
firmware Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
hwmon [PATCH] hwmon: Fix for first generation Abit uGuru chips 2006-07-12 15:43:07 -07:00
i2c [PATCH] SCX200_ACB: eliminate spurious timeout errors 2006-08-06 08:57:49 -07:00
ide Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-31 13:39:52 -07:00
ieee1394 [PATCH] ieee1394: sbp2: enable auto spin-up for Maxtor disks 2006-08-06 08:57:48 -07:00
infiniband IB/uverbs: Avoid a crash on device hot remove 2006-08-03 10:56:42 -07:00
input [PATCH] lockdep: annotate serio 2006-07-03 15:27:07 -07:00
isdn [PATCH] eicon: fix define conflict with ptrace 2006-08-06 08:57:48 -07:00
leds [PATCH] net48xx LED cleanups 2006-07-14 21:53:54 -07:00
macintosh Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-07-31 13:39:52 -07:00
mca
md [PATCH] md: Fix a bug that recently crept into md/linear 2006-08-06 08:57:46 -07:00
media V4L/DVB (4380): Bttv: Revert VBI_OFFSET to previous value, it works better 2006-07-29 17:22:39 -03:00
message Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2006-07-21 12:04:53 -07:00
mfd [ARM] 3727/1: fix ucb initialization on collie 2006-07-11 22:54:15 +01:00
misc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
mmc [MMC] Change SDHCI version error to a warning 2006-07-13 16:17:46 +01:00
mtd Merge git://git.infradead.org/mtd-2.6 2006-07-03 21:29:08 -07:00
net [PATCH] myri10ge - Fix spurious invokations of the watchdog reset handler 2006-08-03 17:31:10 -04:00
nubus Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
oprofile [PATCH] oprofile: convert from semaphores to mutexes 2006-06-25 10:01:04 -07:00
parisc [PATCH] irq-flags: PARISC: Use the new IRQF_ constants 2006-07-02 13:58:52 -07:00
parport [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
pci PCI: Unhide the SMBus on Asus PU-DLS 2006-08-03 13:20:06 -07:00
pcmcia [PATCH] pcmcia: fix ioctl GET_CONFIGURATION_INFO for pcmcia_cards 2006-07-31 13:28:41 -07:00
pnp [PATCH] pnpacpi: reject ACPI_PRODUCER resources 2006-08-06 08:57:49 -07:00
rapidio Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
rtc [PATCH] RTC subsystem, Add ISL1208 support 2006-07-14 21:53:53 -07:00
s390 [S390] duplicate ccw devices in ccwgroup. 2006-07-27 14:00:33 +02:00
sbus [SPARC] sbus: Make sure sbus nodes are named uniquely. 2006-07-21 14:18:06 -07:00
scsi [PATCH] ahci: skip protocol test altogether in spurious interrupt code 2006-08-03 17:34:52 -04:00
serial [SERIAL] sunzilog: Fix instance enumeration. 2006-07-21 14:18:25 -07:00
sh
sn [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
spi [PATCH] lockdep: annotate on-stack completions 2006-07-03 15:27:09 -07:00
tc [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants 2006-07-02 13:58:50 -07:00
telephony Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6 2006-06-29 14:19:21 -07:00
usb Revert "[PATCH] USB: move usb_device_class class devices to be real devices" 2006-08-02 16:52:10 -07:00
video [PATCH] au1100fb: Fix startup sequence 2006-08-06 08:57:47 -07:00
w1 [PATCH] w1: remove drivers/w1/w1.h 2006-07-12 15:38:28 -07:00
zorro Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
Kconfig [I/OAT]: DMA memcpy subsystem 2006-06-17 21:18:43 -07:00
Makefile [PATCH] Time: i386 Clocksource Drivers 2006-06-26 09:58:21 -07:00