test: regmap: test Linux-compatible syscon_node_to_regmap()
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>
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 06d0e8c..3c25cb7 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -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>;
diff --git a/test/dm/regmap.c b/test/dm/regmap.c
index 77b82ce..5b51a90 100644
--- a/test/dm/regmap.c
+++ b/test/dm/regmap.c
@@ -17,6 +17,7 @@
{
struct udevice *dev;
struct regmap *map;
+ ofnode node;
int i;
ut_assertok(uclass_get_device(UCLASS_SYSCON, 0, &dev));
@@ -45,6 +46,22 @@
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);