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test: regmap: test Linux-compatible syscon_node_to_regmap()

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Like Linux, syscon_node_to_regmap() allows a node to work as a syscon
provider without binding it to a syscon driver.  Test this.

Requested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Masahiro Yamada 2018-04-23 13:26:53 +09:00 committed by Tom Rini
parent e151a1c288
commit 99552c3435
2 changed files with 25 additions and 0 deletions
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8
arch/sandbox/dts/test.dts
View File

@ -393,6 +393,14 @@
0x38 8>;
};
syscon@2 {
compatible = "simple-mfd", "syscon";
reg = <0x40 5
0x48 6
0x50 7
0x58 8>;
};
timer {
compatible = "sandbox,timer";
clock-frequency = <1000000>;

17
test/dm/regmap.c
View File

@ -17,6 +17,7 @@ static int dm_test_regmap_base(struct unit_test_state *uts)
{
struct udevice *dev;
struct regmap *map;
ofnode node;
int i;
ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
@ -45,6 +46,22 @@ static int dm_test_regmap_base(struct unit_test_state *uts)
map = syscon_get_regmap(dev);
ut_asserteq_ptr(ERR_PTR(-ENOEXEC), map);
/* A different device can be a syscon by using Linux-compat API */
node = ofnode_path("/syscon@2");
ut_assert(ofnode_valid(node));
map = syscon_node_to_regmap(node);
ut_assertok_ptr(map);
ut_asserteq(4, map->range_count);
ut_asserteq(0x40, map->ranges[0].start);
for (i = 0; i < 4; i++) {
const unsigned long addr = 0x40 + 8 * i;
ut_asserteq(addr, map->ranges[i].start);
ut_asserteq(5 + i, map->ranges[i].size);
ut_asserteq(addr, map_to_sysmem(regmap_get_range(map, i)));
}
return 0;
}
DM_TEST(dm_test_regmap_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);