syscon: update syscon_regmap_lookup_by_phandle
Change the function syscon_regmap_lookup_by_phandle()
introduced by commit 6c3af1f24e4b ("syscon: dm: Add a
new method to get a regmap from DTS") to have
Linux-compatible syscon API.
Same modification than commit e151a1c288bd ("syscon: add
Linux-compatible syscon API") solves issue when the node
identified by the phandle has several compatibles and is
already bound to a dedicated driver.
See Linux commit bdb0066df96e ("mfd: syscon: Decouple syscon
interface from platform devices").
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/syscon.c b/test/dm/syscon.c
index a294dda..0ff9da7 100644
--- a/test/dm/syscon.c
+++ b/test/dm/syscon.c
@@ -67,6 +67,13 @@
ut_assert(!IS_ERR(map));
ut_asserteq(4, map->range_count);
+ ut_assertok_ptr(syscon_regmap_lookup_by_phandle(dev,
+ "third-syscon"));
+ map = syscon_regmap_lookup_by_phandle(dev, "third-syscon");
+ ut_assert(map);
+ ut_assert(!IS_ERR(map));
+ ut_asserteq(4, map->range_count);
+
ut_assert(IS_ERR(syscon_regmap_lookup_by_phandle(dev, "not-present")));
return 0;