AcoSail/kernel_optimize_test
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kernel_optimize_test/drivers
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Rini van Zetten d84248bf46 atmel_spi: reload RCR before TCR 
We have a wifi module connected to the spi bus and got sometimes FIFO
overrun errors on the spi bus.

After some investigation i found that the driver loads the TCR (transmit
count) register before the RCR (receive count).  When the transfer list is
not empty the atmel_spi_next_message is called while tx and rx are enabled.
 As soon as the TCR is loaded, hardware starts transfer and causes a rx
fifo overrun because the RCR is not loaded yet.

Load the RCR before the TCR.  After this patch the fifo overrun disapears
at out setup.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Rini van Zetten <rini@arvoo.nl>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 19:43:55 -08:00
..
acorn/char
acpi ACPI: move timer broadcast before busmaster disable 2007-12-07 19:16:17 +01:00
amba
ata libata: kill spurious NCQ completion detection 2007-12-07 15:27:54 -05:00
atm [ATM]: [he] initialize lock and tasklet earlier 2007-11-27 11:03:16 +08:00
auxdisplay
base create /sys/.../power when CONFIG_PM is set 2007-11-28 13:53:53 -08:00
block Fix NULL dereference in umem.c 2007-12-10 19:43:55 -08:00
bluetooth
cdrom SG: audit of drivers that use blk_rq_map_sg() 2007-10-24 13:21:21 +02:00
char Pull apm-freeze-fix into release branch 2007-12-06 16:51:29 -05:00
clocksource
connector [CONNECTOR]: Fix a spurious kfree_skb() call 2007-10-30 21:29:47 -07:00
cpufreq
cpuidle cpuidle: remove unused exports 2007-10-29 17:27:50 -04:00
crypto uml: add !UML dependencies 2007-12-03 08:13:17 -08:00
dca
dio
dma dmaengine: correct invalid assumptions in the Kconfig text 2007-11-29 09:24:53 -08:00
edac i5000_edac: no need to __stringify() KBUILD_BASENAME 2007-11-14 18:45:41 -08:00
eisa
firewire firewire: OHCI 1.0 Isochronous Receive support 2007-12-10 21:55:19 +01:00
firmware
hid HID: Don't access input_dev->private directly 2007-10-31 13:30:35 +01:00
hwmon HWMON: coretemp, suspend fix 2007-12-04 01:35:32 -05:00
i2c i2c/eeprom: Recognize VGN as a valid Sony Vaio name prefix 2007-11-15 19:24:03 +01:00
ide ide: More TSST drives with broken cable detection 2007-11-27 21:35:57 +01:00
ieee1394 ieee1394: iso and async streams: s/g list fix 2007-11-04 14:31:16 +01:00
infiniband IB/ehca: Fix static rate if path faster than link 2007-11-30 16:19:41 -08:00
input spi: use simplified spi_sync() calling convention 2007-12-05 09:21:19 -08:00
isdn I4L: fix isdn_ioctl memory overrun vulnerability 2007-12-03 08:13:17 -08:00
kvm KVM: SVM: Fix FPU leak while emulating clts 2007-11-27 15:38:18 +02:00
leds leds: Fix led trigger locking bugs 2007-12-07 09:06:53 +00:00
lguest virtio: fix module/device unloading 2007-11-19 11:20:42 +11:00
macintosh [POWERPC] windfarm: Fix windfarm thread freezer interaction 2007-11-08 14:15:34 +11:00
mca
md raid5: fix unending write sequence 2007-11-14 18:45:39 -08:00
media V4L/DVB (6548): pvrusb2: Fix oops on module removal 2007-11-04 21:41:30 -02:00
message i2o: debug messages corrected 2007-11-05 15:12:31 -08:00
mfd MFD: SM501 debug typo fix 2007-11-29 09:24:53 -08:00
misc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2007-11-27 14:20:35 -08:00
mmc spi: use simplified spi_sync() calling convention 2007-12-05 09:21:19 -08:00
mtd Eliminate pointless casts from void* in a few driver irq handlers. 2007-10-23 19:53:16 -04:00
net S2io: Check for register initialization completion before accesing device registers 2007-12-07 15:09:06 -05:00
nubus
of
oprofile oProfile: oops when profile_pc() returns ~0LU 2007-11-14 18:45:37 -08:00
parisc [PARISC] lba_pci: pci_claim_resources disabled expansion roms 2007-12-06 09:38:26 -08:00
parport [PARPORT] Remove unused 'irq' argument from parport irq functions 2007-10-23 19:53:16 -04:00
pci Revert "PCI: fix IDE legacy mode resources" 2007-12-10 07:40:54 -08:00
pcmcia pcmcia: fix kernel-doc comments 2007-12-10 19:43:54 -08:00
pnp drivers/pnp/resource.c: Add missing pci_dev_put 2007-11-29 09:24:52 -08:00
power
ps3 ps3: prefix all ps3-specific kernel modules with `ps3-' 2007-11-29 09:24:51 -08:00
rapidio
rtc spi: use simplified spi_sync() calling convention 2007-12-05 09:21:19 -08:00
s390 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2007-12-04 09:37:39 -08:00
sbus
scsi esp_scsi: fix reset cleanup spinlock recursion 2007-12-10 19:43:55 -08:00
serial drivers/serial/uartlite.c: Add missing of_node_put 2007-12-10 19:43:55 -08:00
sh superhyway: Handle device_register() retval properly. 2007-11-07 11:13:55 +09:00
sn
spi atmel_spi: reload RCR before TCR 2007-12-10 19:43:55 -08:00
ssb ssb: Fix PCMCIA-host lowlevel bus access 2007-11-10 22:01:53 -08:00
tc
telephony telephony: phonedev panics if unregistering device not registered [Bug 9266] 2007-11-05 15:12:33 -08:00
uio
usb revert "keyspan: init termios properly" 2007-11-29 09:24:54 -08:00
video x86_64 EFI boot support: EFI frame buffer driver 2007-11-29 09:24:54 -08:00
virtio virtio: fix module/device unloading 2007-11-19 11:20:42 +11:00
w1 W1: fix memset size error 2007-11-14 18:45:36 -08:00
watchdog Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog 2007-11-02 19:36:26 -07:00
xen
zorro Amiga zorro bus: Add missing zorro_device_remove() 2007-11-26 19:15:31 -08:00
Kconfig Virtio interface 2007-10-23 15:49:54 +10:00
Makefile Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2007-10-23 16:37:29 -07:00