diff options
Diffstat (limited to 'arch/microblaze/kernel/reset.c')
| -rw-r--r-- | arch/microblaze/kernel/reset.c | 43 |
1 files changed, 2 insertions, 41 deletions
diff --git a/arch/microblaze/kernel/reset.c b/arch/microblaze/kernel/reset.c index bd8ccab5ceff..88a01636f785 100644 --- a/arch/microblaze/kernel/reset.c +++ b/arch/microblaze/kernel/reset.c @@ -19,50 +19,11 @@ static int handle; /* reset pin handle */ static unsigned int reset_val; -static int of_reset_gpio_handle(void) -{ - int ret; /* variable which stored handle reset gpio pin */ - struct device_node *root; /* root node */ - struct device_node *gpio; /* gpio node */ - struct gpio_chip *gc; - u32 flags; - const void *gpio_spec; - - /* find out root node */ - root = of_find_node_by_path("/"); - - /* give me handle for gpio node to be possible allocate pin */ - ret = of_parse_phandles_with_args(root, "hard-reset-gpios", - "#gpio-cells", 0, &gpio, &gpio_spec); - if (ret) { - pr_debug("%s: can't parse gpios property\n", __func__); - goto err0; - } - - gc = of_node_to_gpiochip(gpio); - if (!gc) { - pr_debug("%s: gpio controller %s isn't registered\n", - root->full_name, gpio->full_name); - ret = -ENODEV; - goto err1; - } - - ret = gc->of_xlate(gc, root, gpio_spec, &flags); - if (ret < 0) - goto err1; - - ret += gc->base; -err1: - of_node_put(gpio); -err0: - pr_debug("%s exited with status %d\n", __func__, ret); - return ret; -} - void of_platform_reset_gpio_probe(void) { int ret; - handle = of_reset_gpio_handle(); + handle = of_get_named_gpio(of_find_node_by_path("/"), + "hard-reset-gpios", 0); if (!gpio_is_valid(handle)) { printk(KERN_INFO "Skipping unavailable RESET gpio %d (%s)\n", |