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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>		18 years ago
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at91_aic.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_dbgu.h	[ARM] 4192/1: AT91: Support for AT91SAM9XE processors.	18 years ago
at91_ecc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_lcdc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_mci.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_pio.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_pit.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_pmc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_rstc.h	[ARM] at91: correct value for AT91_RSTC_KEY	18 years ago
at91_rtc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_rtt.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_shdwc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_spi.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_ssc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_st.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_tc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_twi.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91_wdt.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91rm9200.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91rm9200_emac.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91rm9200_mc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91sam926x_mc.h	[ARM] 4145/2: AT91: Add support for AT91SAM9263 processor	18 years ago
at91sam9260.h	[ARM] 4192/1: AT91: Support for AT91SAM9XE processors.	18 years ago
at91sam9260_matrix.h	[ARM] 4143/1: AT91: Prepare for AT91SAM9263 support	18 years ago
at91sam9261.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91sam9261_matrix.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
at91sam9263.h	[ARM] 4145/2: AT91: Add support for AT91SAM9263 processor	18 years ago
at91sam9263_matrix.h	[ARM] 4145/2: AT91: Add support for AT91SAM9263 processor	18 years ago
board.h	[ARM] 4143/1: AT91: Prepare for AT91SAM9263 support	18 years ago
cpu.h	[ARM] 4192/1: AT91: Support for AT91SAM9XE processors.	18 years ago
debug-macro.S	[ARM] 4143/1: AT91: Prepare for AT91SAM9263 support	18 years ago
dma.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
entry-macro.S	[ARM] Merge remaining IOP code	18 years ago
gpio.h	[PATCH] gpio_direction_output() needs an initial value	18 years ago
hardware.h	[ARM] 4231/1: AT91: Merge and typo fixes.	18 years ago
io.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
irqs.h	[ARM] 4143/1: AT91: Prepare for AT91SAM9263 support	18 years ago
memory.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
system.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
timex.h	[ARM] 4145/2: AT91: Add support for AT91SAM9263 processor	18 years ago
uncompress.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago
vmalloc.h	[ARM] 4124/1: Rename mach-at91rm9200 and arch-at91rm9200 directories	18 years ago