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authorArnaud Patard <arnaud.patard@rtp-net.org>2008-03-10 11:43:48 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-03-10 18:01:19 -0700
commit842078054da2d754c6b998b116d7c468abbfaaca (patch)
treee31e3d8bef79080c339f94a3a0e205774201e203 /drivers/gpio/pca953x.c
parent7be3dfec4724c51e890455fe48fe188ad7c18b88 (diff)
gpio/pca953x bugfix: mark as can_sleep
The pca953x driver is an I2C driver so gpio_chip->can_sleep should be set. This lets upper layers know they should use the gpio_*_cansleep() calls to access values, and may not access them from nonsleeping contexts. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: "eric miao" <eric.y.miao@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpio/pca953x.c')
-rw-r--r--drivers/gpio/pca953x.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 92583cd4bffd..6e72fd31184d 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -184,6 +184,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)
gc->direction_output = pca953x_gpio_direction_output;
gc->get = pca953x_gpio_get_value;
gc->set = pca953x_gpio_set_value;
+ gc->can_sleep = 1;
gc->base = chip->gpio_start;
gc->ngpio = gpios;