From 9360bb06f1db4597b7d08ea95b48a17025a97618 Mon Sep 17 00:00:00 2001 From: Patrick Delaunay Date: Mon, 13 Jan 2020 11:35:05 +0100 Subject: gpio: add helper GPIOD_FLAGS_OUTPUT Add a macro to provide the GPIO output value according the dir flags content. Signed-off-by: Patrick Delaunay Reviewed-by: Simon Glass --- include/asm-generic/gpio.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index 4d5348d8c8e..5686df7cece 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -129,6 +129,12 @@ struct gpio_desc { */ }; +/* helper to compute the value of the gpio output */ +#define GPIOD_FLAGS_OUTPUT_MASK (GPIOD_ACTIVE_LOW | GPIOD_IS_OUT_ACTIVE) +#define GPIOD_FLAGS_OUTPUT(flags) \ + (((((flags) & GPIOD_FLAGS_OUTPUT_MASK) == GPIOD_IS_OUT_ACTIVE) || \ + (((flags) & GPIOD_FLAGS_OUTPUT_MASK) == GPIOD_ACTIVE_LOW))) + /** * dm_gpio_is_valid() - Check if a GPIO is valid * -- cgit v1.2.3