diff options
author | Tom Rini <trini@ti.com> | 2014-11-24 12:00:00 -0500 |
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committer | Tom Rini <trini@ti.com> | 2014-11-24 12:00:00 -0500 |
commit | 746667f1e56bf08d03e66a178df3c4f4f6c806e1 (patch) | |
tree | e42c7fd72cb1ef97a5a05a73b06b3cd2fc118147 /drivers/gpio/gpio-uclass.c | |
parent | 6c016485a685b5cdac28edb25147311a3e88d51f (diff) | |
parent | fe5b9b447c6eea3873833b1f3ba15c9854aa2ef8 (diff) |
Merge git://git.denx.de/u-boot-x86
Conflicts:
arch/x86/cpu/Makefile
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'drivers/gpio/gpio-uclass.c')
-rw-r--r-- | drivers/gpio/gpio-uclass.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index 45e9a5ad227..255700ab18d 100644 --- a/drivers/gpio/gpio-uclass.c +++ b/drivers/gpio/gpio-uclass.c @@ -390,6 +390,25 @@ int gpio_get_status(struct udevice *dev, int offset, char *buf, int buffsize) return 0; } +/* + * get a number comprised of multiple GPIO values. gpio_num_array points to + * the array of gpio pin numbers to scan, terminated by -1. + */ +unsigned gpio_get_values_as_int(const int *gpio_num_array) +{ + int gpio; + unsigned bitmask = 1; + unsigned vector = 0; + + while (bitmask && + ((gpio = *gpio_num_array++) != -1)) { + if (gpio_get_value(gpio)) + vector |= bitmask; + bitmask <<= 1; + } + return vector; +} + /* We need to renumber the GPIOs when any driver is probed/removed */ static int gpio_renumber(struct udevice *removed_dev) { |