diff options
Diffstat (limited to 'drivers/core/of_access.c')
| -rw-r--r-- | drivers/core/of_access.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/core/of_access.c b/drivers/core/of_access.c index a52f5a6b18..df007e642b 100644 --- a/drivers/core/of_access.c +++ b/drivers/core/of_access.c @@ -488,6 +488,44 @@ static void *of_find_property_value_of_size(const struct device_node *np, return prop->value; } +int of_read_u8(const struct device_node *np, const char *propname, u8 *outp) +{ + const u8 *val; + + debug("%s: %s: ", __func__, propname); + if (!np) + return -EINVAL; + val = of_find_property_value_of_size(np, propname, sizeof(*outp)); + if (IS_ERR(val)) { + debug("(not found)\n"); + return PTR_ERR(val); + } + + *outp = *val; + debug("%#x (%d)\n", *outp, *outp); + + return 0; +} + +int of_read_u16(const struct device_node *np, const char *propname, u16 *outp) +{ + const __be16 *val; + + debug("%s: %s: ", __func__, propname); + if (!np) + return -EINVAL; + val = of_find_property_value_of_size(np, propname, sizeof(*outp)); + if (IS_ERR(val)) { + debug("(not found)\n"); + return PTR_ERR(val); + } + + *outp = be16_to_cpup(val); + debug("%#x (%d)\n", *outp, *outp); + + return 0; +} + int of_read_u32(const struct device_node *np, const char *propname, u32 *outp) { return of_read_u32_index(np, propname, 0, outp); |