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 ---

arch/sandbox/dts/test.dts | 8 ++++++++ test/dm/regmap.c | 17 +++++++++++++++++ 2 files changed, 25 insertions(+)

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 8125345..698a013 100644 --- a/test/dm/regmap.c +++ b/test/dm/regmap.c @@ -20,6 +20,7 @@ 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)); @@ -48,6 +49,22 @@ 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);