Commit 8d0df7a3 authored Mar 12, 2009 by Daniel Mack Committed by Linus Torvalds Mar 12, 2009

drivers/w1/masters/w1-gpio.c: fix read_bit()

W1 master implementations are expected to return 0 or 1 from their
read_bit() function.  However, not all platforms do return these values
from gpio_get_value() - namely PXAs won't.  Hence the w1 gpio-master needs
to break the result down to 0 or 1 itself.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Ville Syrjala <syrjala@sci.fi>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 00699e84

drivers/w1/masters/w1-gpio.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -39,7 +39,7 @@ static u8 w1_gpio_read_bit(void *data)
		{
		struct w1_gpio_platform_data *pdata = data;

		return gpio_get_value(pdata->pin);
		return gpio_get_value(pdata->pin) ? 1 : 0;
		}

		static int __init w1_gpio_probe(struct platform_device *pdev)