diff options
author | Tom Rini <trini@konsulko.com> | 2016-05-17 13:58:27 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2016-05-17 13:58:27 -0400 |
commit | 4b6e1fda107e5244e80ebc41865650ac2873dc88 (patch) | |
tree | f448089740af77c2987d12e2dd5b753b7659586f /drivers/gpio/gpio-uclass.c | |
parent | 27bec5c12757c80f598b704477c1bc6c250bcb4c (diff) | |
parent | 341392dd115f1385c31bb0b034ec15f542730e30 (diff) | |
download | talos-obmc-uboot-4b6e1fda107e5244e80ebc41865650ac2873dc88.tar.gz talos-obmc-uboot-4b6e1fda107e5244e80ebc41865650ac2873dc88.zip |
Merge git://git.denx.de/u-boot-dm
Diffstat (limited to 'drivers/gpio/gpio-uclass.c')
-rw-r--r-- | drivers/gpio/gpio-uclass.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index b58d4e64e8..732b6c2afa 100644 --- a/drivers/gpio/gpio-uclass.c +++ b/drivers/gpio/gpio-uclass.c @@ -6,6 +6,7 @@ #include <common.h> #include <dm.h> +#include <dt-bindings/gpio/gpio.h> #include <errno.h> #include <fdtdec.h> #include <malloc.h> @@ -113,19 +114,33 @@ int gpio_lookup_name(const char *name, struct udevice **devp, return 0; } +int gpio_xlate_offs_flags(struct udevice *dev, + struct gpio_desc *desc, + struct fdtdec_phandle_args *args) +{ + if (args->args_count < 1) + return -EINVAL; + + desc->offset = args->args[0]; + + if (args->args_count < 2) + return 0; + + if (args->args[1] & GPIO_ACTIVE_LOW) + desc->flags = GPIOD_ACTIVE_LOW; + + return 0; +} + static int gpio_find_and_xlate(struct gpio_desc *desc, struct fdtdec_phandle_args *args) { struct dm_gpio_ops *ops = gpio_get_ops(desc->dev); - /* Use the first argument as the offset by default */ - if (args->args_count > 0) - desc->offset = args->args[0]; + if (ops->xlate) + return ops->xlate(desc->dev, desc, args); else - desc->offset = -1; - desc->flags = 0; - - return ops->xlate ? ops->xlate(desc->dev, desc, args) : 0; + return gpio_xlate_offs_flags(desc->dev, desc, args); } int dm_gpio_request(struct gpio_desc *desc, const char *label) @@ -605,6 +620,7 @@ static int _gpio_request_by_name_nodev(const void *blob, int node, desc->dev = NULL; desc->offset = 0; + desc->flags = 0; ret = fdtdec_parse_phandle_with_args(blob, node, list_name, "#gpio-cells", 0, index, &args); if (ret) { |