From bed4d89277629904bfcefa37589c71e4b7424bea Mon Sep 17 00:00:00 2001 From: Anton Staff Date: Tue, 17 Apr 2012 09:01:28 +0000 Subject: fdt: Add fdtdec functions to read byte array Sometimes we don't need a full cell for each value. This provides a simple function to read a byte array, both with and without copying it. Signed-off-by: Simon Glass Signed-off-by: Tom Warren --- lib/fdtdec.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'lib/fdtdec.c') diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 42c3e893d6..ba5c591489 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -476,3 +476,27 @@ int fdtdec_setup_gpio(struct fdt_gpio_state *gpio) return -1; return 0; } + +int fdtdec_get_byte_array(const void *blob, int node, const char *prop_name, + u8 *array, int count) +{ + const u8 *cell; + int err; + + cell = get_prop_check_min_len(blob, node, prop_name, count, &err); + if (!err) + memcpy(array, cell, count); + return err; +} + +const u8 *fdtdec_locate_byte_array(const void *blob, int node, + const char *prop_name, int count) +{ + const u8 *cell; + int err; + + cell = get_prop_check_min_len(blob, node, prop_name, count, &err); + if (err) + return NULL; + return cell; +} -- cgit v1.2.1