From 195889829e3f3fc4eabb3297b3d686daf14af7f5 Mon Sep 17 00:00:00 2001 From: Caesar Wang Date: Wed, 25 May 2016 18:48:45 +0800 Subject: gpio: support gpio set/get pull status On some platform gpio can set/get pull status when input, add these function so we can set/get gpio pull status when need it. And they are optional function. --- drivers/gpio/gpio.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/gpio') diff --git a/drivers/gpio/gpio.c b/drivers/gpio/gpio.c index c06172fc..ef6bb9c8 100644 --- a/drivers/gpio/gpio.c +++ b/drivers/gpio/gpio.c @@ -80,6 +80,26 @@ void gpio_set_value(int gpio, int value) ops->set_value(gpio, value); } +void gpio_set_pull(int gpio, int pull) +{ + assert(ops); + assert(ops->set_pull != 0); + assert((pull == GPIO_PULL_NONE) || (pull == GPIO_PULL_UP) || + (pull == GPIO_PULL_DOWN)); + assert(gpio >= 0); + + ops->set_pull(gpio, pull); +} + +int gpio_get_pull(int gpio) +{ + assert(ops); + assert(ops->get_pull != 0); + assert(gpio >= 0); + + return ops->get_pull(gpio); +} + /* * Initialize the gpio. The fields in the provided gpio * ops pointer must be valid. -- cgit v1.2.3