From 3946d18765be0b0fe278bea4f87a54cf13858019 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 14 Aug 2017 21:59:55 -0700 Subject: gpio: add gpio_add_lookup_tables() to add several tables at once When converting legacy board to use gpiod API() there might be several lookup tables in board file, let's provide a way to register them all at once. Reviewed-by: Andy Shevchenko Reviewed-by: Mika Westerberg Signed-off-by: Dmitry Torokhov Signed-off-by: Linus Walleij --- drivers/gpio/gpiolib.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/gpio') diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 18bba1748a35..e452768f316d 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -3010,6 +3010,23 @@ void gpiod_set_raw_array_value_cansleep(unsigned int array_size, } EXPORT_SYMBOL_GPL(gpiod_set_raw_array_value_cansleep); +/** + * gpiod_add_lookup_tables() - register GPIO device consumers + * @tables: list of tables of consumers to register + * @n: number of tables in the list + */ +void gpiod_add_lookup_tables(struct gpiod_lookup_table **tables, size_t n) +{ + unsigned int i; + + mutex_lock(&gpio_lookup_lock); + + for (i = 0; i < n; i++) + list_add_tail(&tables[i]->list, &gpio_lookup_list); + + mutex_unlock(&gpio_lookup_lock); +} + /** * gpiod_set_array_value_cansleep() - assign values to an array of GPIOs * @array_size: number of elements in the descriptor / value arrays -- cgit v1.2.3-59-g8ed1b