David Brownell 28735a7253 [PATCH] gpio_direction_output() needs an initial value ... It's been pointed out that output GPIOs should have an initial value, to avoid signal glitching ... among other things, it can be some time before a driver is ready. This patch corrects that oversight, fixing - documentation - platforms supporting the GPIO interface - users of that call (just one for now, others are pending) There's only one user of this call for now since most platforms are still using non-generic GPIO setup code, which in most cases already couples the initial value with its "set output mode" request. Note that most platforms are clear about the hardware letting the output value be set before the pin direction is changed, but the s3c241x docs are vague on that topic ... so those chips might not avoid the glitches. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Andrew Victor <andrew@sanpeople.com> Acked-by: Milan Svoboda <msvoboda@ra.rockwell.com> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-03-16 19:25:04 -07:00
..
acorn	[ARM] Acorn: move the i2c bus driver into drivers/i2c	2007-03-04 20:40:50 +00:00
acpi	[PATCH] misc NULL noise	2007-03-14 15:27:49 -07:00
amba	…
ata	[PATCH] trivial ATA iomem annotations	2007-03-14 15:27:50 -07:00
atm	[PATCH] zatm __init abuse	2007-03-14 15:27:49 -07:00
auxdisplay	[PATCH] cfag12864b: fix crash when built-in and no parport present	2007-02-20 17:10:14 -08:00
base	[PATCH] sysfs and driver core: add callback helper, used by SCSI and S390	2007-03-15 15:29:26 -07:00
block	[PATCH] paride endianness annotations	2007-03-14 15:27:50 -07:00
bluetooth	[Bluetooth] Make use of MODULE_FIRMWARE	2007-02-26 11:42:42 -08:00
cdrom	[PATCH] Fix soft lockup with iSeries viocd driver	2007-03-05 07:57:51 -08:00
char	Merge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog	2007-03-14 15:28:31 -07:00
clocksource	[PATCH] clocksource init adjustments (fix bug #7426)	2007-03-05 07:57:53 -08:00
connector	[CONNECTOR]: Bugfix for cn_call_callback()	2007-03-07 16:08:08 -08:00
cpufreq	Revert "[CPUFREQ] constify cpufreq_driver where possible."	2007-02-26 14:55:48 -08:00
crypto	[PATCH] geode-aes: use unsigned long for spin_lock_irqsave	2007-03-06 09:30:25 -08:00
dio	…
dma	[PATCH] rm pointless dmaengine exports	2007-03-16 19:25:03 -07:00
edac	[PATCH] EDAC: Add Fully-Buffered DIMM APIs to core	2007-02-12 09:48:32 -08:00
eisa	…
fc4	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
firmware	[PATCH] docbook: add edd firmware interfaces	2007-02-11 10:51:32 -08:00
hid	Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid	2007-03-15 10:50:54 -07:00
hwmon	hwmon/vt1211: Add probing of alternate config index port	2007-02-14 21:15:05 +01:00
i2c	[ARM] Acorn: move the i2c bus driver into drivers/i2c	2007-03-04 20:40:50 +00:00
ide	[PATCH] BLK_DEV_IDE_CELLEB dependency fix	2007-03-14 15:27:49 -07:00
ieee1394	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial	2007-02-19 13:29:02 -08:00
infiniband	[PATCH] fix ipath_dma_free_coherent() prototype	2007-03-14 15:27:49 -07:00
input	Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input	2007-03-08 07:28:30 -08:00
isdn	[PATCH] Fix buffer overflow and races in capi debug functions	2007-03-01 14:53:39 -08:00
kvm	KVM: Move kvmfs magic number to <linux/magic.h>	2007-03-04 11:12:43 +02:00
leds	leds: Add support for Cobalt Server front LED	2007-02-15 21:37:29 +00:00
macintosh	backlight: Separate backlight properties from backlight ops pointers	2007-02-20 09:26:53 +00:00
mca	…
md	[PATCH] fix read past end of array in md/linear.c	2007-03-16 19:25:03 -07:00
media	[PATCH] misc NULL noise	2007-03-14 15:27:49 -07:00
message	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
mfd	[PATCH] drivers/mfd/sm501.c: Replace pci_module_init with pci_register_driver	2007-02-26 12:35:47 -08:00
misc	asus-laptop: make code static	2007-03-09 21:06:40 -05:00
mmc	[ARM] 4256/1: i.MX/MX1 SDHC fix/workaround of SD card recognition problems	2007-03-12 16:49:37 +00:00
mtd	[MTD] [OneNAND] Classify the page data and oob buffer	2007-03-09 08:08:09 +00:00
net	natsemi: Avoid IntrStatus lossage if RX state machine resets.	2007-03-15 10:59:54 -04:00
nubus	…
oprofile	[PATCH] mark struct file_operations const 5	2007-02-12 09:48:45 -08:00
parisc	Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6	2007-02-26 12:48:06 -08:00
parport	[PATCH] parport_pc: fix parport_pc_probe_port section warning	2007-02-20 17:10:16 -08:00
pci	[PATCH] pci: Repair pci_save/restore_state so we can restore one save many times.	2007-03-12 16:31:50 -07:00
pcmcia	Driver core: more fallout from class_device changes for pcmcia	2007-02-23 14:52:09 -08:00
pnp	[PATCH] reduce pnp syslog spam	2007-03-16 19:25:02 -07:00
ps3	[PATCH] C99 initializers, proper use of const in drivers/ps3	2007-03-14 15:27:50 -07:00
rapidio	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
rtc	[ARM] rtc-pcf8583: Final fixes for this RTC on RiscPC	2007-03-04 20:33:07 +00:00
s390	[PATCH] sysfs and driver core: add callback helper, used by SCSI and S390	2007-03-15 15:29:26 -07:00
sbus	[SPARC] uctrl: Check request_irq() return value.	2007-02-26 11:35:51 -08:00
scsi	[PATCH] sysfs and driver core: add callback helper, used by SCSI and S390	2007-03-15 15:29:26 -07:00
serial	[PATCH] 2.6 Altix: console fix for CONFIG_DEBUG_SHIRQ usage	2007-03-08 07:39:15 -08:00
sh	…
sn	[PATCH] IOC3/IOC4: PCI mem space resources	2007-02-11 10:51:25 -08:00
spi	[PATCH] gpio_direction_output() needs an initial value	2007-03-16 19:25:04 -07:00
tc	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
telephony	[PATCH] remove many unneeded #includes of sched.h	2007-02-14 08:09:54 -08:00
usb	Revert "USB: pxa2xx_udc: fix hardcoded irq number"	2007-03-10 14:22:07 -08:00
video	[PATCH] misc NULL noise	2007-03-14 15:27:49 -07:00
w1	[PATCH] w1: Use ARRAY_SIZE macro when appropriate	2007-02-12 09:48:28 -08:00
zorro	[PATCH] mark struct file_operations const 6	2007-02-12 09:48:45 -08:00
Kconfig	[PATCH] drivers: add LCD support	2007-02-11 10:51:24 -08:00
Makefile	[PATCH] drivers: add LCD support	2007-02-11 10:51:24 -08:00