summaryrefslogtreecommitdiff
path: root/drivers/gpio
diff options
context:
space:
mode:
authorOlof Johansson <olof@lixom.net>2012-06-25 21:18:21 -0700
committerLinus Walleij <linus.walleij@linaro.org>2012-07-17 21:00:15 +0200
commitf447ed8b31da7b24c7c75c2d4624598135b41217 (patch)
tree37888d2e359422bf4900850722d8809eb77f62c1 /drivers/gpio
parent31ba56f274d60d0b84efae4d15a9cd3e0486fa8c (diff)
gpio: samsung: add flags specifier to device-tree binding
This adds a flags field to the gpio specifier for Samsung. I didn't want to add yet another field in the already quite long specifier, so I decided to compress it together with the Pull Up/Down settings instead. This is needed to, for example, have a gpio-keys input that is active low. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-samsung.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index b6453d0e44a..92f7b2bb79d 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -2681,11 +2681,14 @@ static int exynos_gpio_xlate(struct gpio_chip *gc,
if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
pr_warn("gpio_xlate: failed to set pin function\n");
- if (s3c_gpio_setpull(pin, gpiospec->args[2]))
+ if (s3c_gpio_setpull(pin, gpiospec->args[2] & 0xffff))
pr_warn("gpio_xlate: failed to set pin pull up/down\n");
if (s5p_gpio_set_drvstr(pin, gpiospec->args[3]))
pr_warn("gpio_xlate: failed to set pin drive strength\n");
+ if (flags)
+ *flags = gpiospec->args[2] >> 16;
+
return gpiospec->args[0];
}