linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2007-03-16	[PATCH] gpio_direction_output() needs an initial value	David Brownell	1	-1/+3
	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>
2007-02-20	[PATCH] GPIO API: S3C2410 wrapper cleanup	Philipp Zabel	1	-10/+11
	this one adds an #include <asm/arch/regs-gpio.h>. Tested by Roman Moravcik on s3c2440. Based on the discussion last december (http://lkml.org/lkml/2006/12/20/243), this patch - fixes comment and includes in gpio.h - adds the gpio_to_irq definition for S3C2400 - includes asm/arch/regs-gpio.h for pin direction definitions Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> 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>
2007-02-12	[PATCH] S3C2410 GPIO wrappers	Philipp Zabel	1	-0/+65
	Arch-neutral GPIO calls for S3C24xx. 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>