29 lines
580 B
C
29 lines
580 B
C
#define DEBUG
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#include <common.h>
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#include <errno.h>
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#include <of.h>
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#include <gpio.h>
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int of_get_named_gpio(struct device_node *np,
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const char *propname, int index)
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{
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int ret;
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struct device_node *gpio_np;
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const void *gpio_spec;
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ret = of_parse_phandles_with_args(np, propname, "#gpio-cells", index,
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&gpio_np, &gpio_spec);
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if (ret) {
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pr_debug("%s: can't parse gpios property: %d\n", __func__, ret);
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return -EINVAL;
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}
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ret = gpio_get_num(gpio_np->device, be32_to_cpup(gpio_spec));
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if (ret < 0)
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return ret;
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return ret;
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}
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