Add a new function to write an integer to an ofnode (live tree or flat tree).
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/core/ofnode.c | 15 +++++++++++++++ include/dm/ofnode.h | 10 ++++++++++ test/dm/ofnode.c | 16 ++++++++++++++++ 3 files changed, 41 insertions(+)
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index b7a55589a1c..45ea84e9fb8 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -1126,6 +1126,21 @@ int ofnode_write_string(ofnode node, const char *propname, const char *value) return ofnode_write_prop(node, propname, value, strlen(value) + 1); }
+int ofnode_write_u32(ofnode node, const char *propname, u32 value) +{ + fdt32_t *val; + + assert(ofnode_valid(node)); + + log_debug("%s = %x", propname, value); + val = malloc(sizeof(*val)); + if (!val) + return -ENOMEM; + *val = cpu_to_fdt32(value); + + return ofnode_write_prop(node, propname, val, sizeof(value)); +} + int ofnode_set_enabled(ofnode node, bool value) { assert(ofnode_valid(node)); diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 16c8890b097..7ce1e4c6d91 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -1154,6 +1154,16 @@ int ofnode_write_prop(ofnode node, const char *propname, const void *value, */ int ofnode_write_string(ofnode node, const char *propname, const char *value);
+/** + * ofnode_write_u32() - Set an integer property of an ofnode + * + * @node: The node for whose string property should be set + * @propname: The name of the string property to set + * @value: The new value of the 32-bit integer property + * Return: 0 if successful, -ve on error + */ +int ofnode_write_u32(ofnode node, const char *propname, u32 value); + /** * ofnode_set_enabled() - Enable or disable a device tree node given by its * ofnode diff --git a/test/dm/ofnode.c b/test/dm/ofnode.c index bd598d23e44..f80993f8927 100644 --- a/test/dm/ofnode.c +++ b/test/dm/ofnode.c @@ -585,3 +585,19 @@ static int dm_test_ofnode_livetree_writing(struct unit_test_state *uts) } DM_TEST(dm_test_ofnode_livetree_writing, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_LIVE_OR_FLAT); + +static int dm_test_ofnode_u32(struct unit_test_state *uts) +{ + ofnode node; + + node = ofnode_path("/lcd"); + ut_assert(ofnode_valid(node)); + ut_asserteq(1366, ofnode_read_u32_default(node, "xres", 123)); + ut_assertok(ofnode_write_u32(node, "xres", 1367)); + ut_asserteq(1367, ofnode_read_u32_default(node, "xres", 123)); + ut_assertok(ofnode_write_u32(node, "xres", 1366)); + + return 0; +} +DM_TEST(dm_test_ofnode_u32, + UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_LIVE_OR_FLAT);