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dm: core: Support writing a 64-bit value

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Add support for writing a single 64-bit value into a property.

Repurpose the existing tests to handle this case too.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-09-26 08:14:45 -06:00 committed by Tom Rini
parent d9216c8683
commit 7071c82bdc
3 changed files with 39 additions and 3 deletions
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17
drivers/core/ofnode.c
View File

@ -1621,7 +1621,22 @@ int ofnode_write_u32(ofnode node, const char *propname, u32 value)
return -ENOMEM;
*val = cpu_to_fdt32(value);
return ofnode_write_prop(node, propname, val, sizeof(value), false);
return ofnode_write_prop(node, propname, val, sizeof(value), true);
}
int ofnode_write_u64(ofnode node, const char *propname, u64 value)
{
fdt64_t *val;
assert(ofnode_valid(node));
log_debug("%s = %llx", propname, (unsigned long long)value);
val = malloc(sizeof(*val));
if (!val)
return -ENOMEM;
*val = cpu_to_fdt64(value);
return ofnode_write_prop(node, propname, val, sizeof(value), true);
}
int ofnode_write_bool(ofnode node, const char *propname, bool value)

10
include/dm/ofnode.h
View File

@ -1461,6 +1461,16 @@ int ofnode_write_string(ofnode node, const char *propname, const char *value);
*/
int ofnode_write_u32(ofnode node, const char *propname, u32 value);
/**
* ofnode_write_u64() - 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 64-bit integer property
* Return: 0 if successful, -ve on error
*/
int ofnode_write_u64(ofnode node, const char *propname, u64 value);
/**
* ofnode_write_bool() - Set a boolean property of an ofnode
*

15
test/dm/ofnode.c
View File

@ -1009,7 +1009,8 @@ static int dm_test_ofnode_u32_array(struct unit_test_state *uts)
}
DM_TEST(dm_test_ofnode_u32_array, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
static int dm_test_ofnode_read_u64(struct unit_test_state *uts)
/* test ofnode_read_u64() and ofnode_write_u64() */
static int dm_test_ofnode_u64(struct unit_test_state *uts)
{
ofnode node;
u64 val;
@ -1018,6 +1019,10 @@ static int dm_test_ofnode_read_u64(struct unit_test_state *uts)
ut_assert(ofnode_valid(node));
ut_assertok(ofnode_read_u64(node, "int64-value", &val));
ut_asserteq_64(0x1111222233334444, val);
ut_assertok(ofnode_write_u64(node, "new-int64-value", 0x9876543210));
ut_assertok(ofnode_read_u64(node, "new-int64-value", &val));
ut_asserteq_64(0x9876543210, val);
ut_asserteq(-EINVAL, ofnode_read_u64(node, "missing", &val));
ut_assertok(ofnode_read_u64_index(node, "int64-array", 0, &val));
@ -1028,9 +1033,15 @@ static int dm_test_ofnode_read_u64(struct unit_test_state *uts)
ofnode_read_u64_index(node, "int64-array", 2, &val));
ut_asserteq(-EINVAL, ofnode_read_u64_index(node, "missing", 0, &val));
ut_assertok(ofnode_write_u64(node, "int64-array", 0x9876543210));
ut_assertok(ofnode_read_u64_index(node, "int64-array", 0, &val));
ut_asserteq_64(0x9876543210, val);
ut_asserteq(-EOVERFLOW,
ofnode_read_u64_index(node, "int64-array", 1, &val));
return 0;
}
DM_TEST(dm_test_ofnode_read_u64, UT_TESTF_SCAN_FDT);
DM_TEST(dm_test_ofnode_u64, UT_TESTF_SCAN_FDT);
static int dm_test_ofnode_add_subnode(struct unit_test_state *uts)
{