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-rw-r--r--test/dm/bus.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/test/dm/bus.c b/test/dm/bus.c
index 08a4725..df8edcb 100644
--- a/test/dm/bus.c
+++ b/test/dm/bus.c
@@ -6,6 +6,7 @@
#include <common.h>
#include <dm.h>
+#include <dm/device-internal.h>
#include <dm/root.h>
#include <dm/test.h>
#include <dm/ut.h>
@@ -32,6 +33,7 @@ U_BOOT_DRIVER(testbus_drv) = {
.probe = testbus_drv_probe,
.priv_auto_alloc_size = sizeof(struct dm_test_priv),
.platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
+ .per_child_auto_alloc_size = sizeof(struct dm_test_parent_data),
};
UCLASS_DRIVER(testbus) = {
@@ -107,3 +109,66 @@ static int dm_test_bus_children_funcs(struct dm_test_state *dms)
return 0;
}
DM_TEST(dm_test_bus_children_funcs, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Test that the bus can store data about each child */
+static int dm_test_bus_parent_data(struct dm_test_state *dms)
+{
+ struct dm_test_parent_data *parent_data;
+ struct udevice *bus, *dev;
+ struct uclass *uc;
+ int value;
+
+ ut_assertok(uclass_get_device(UCLASS_TEST_BUS, 0, &bus));
+
+ /* Check that parent data is allocated */
+ ut_assertok(device_find_child_by_seq(bus, 0, true, &dev));
+ ut_asserteq_ptr(NULL, dev_get_parentdata(dev));
+ ut_assertok(device_get_child_by_seq(bus, 0, &dev));
+ parent_data = dev_get_parentdata(dev);
+ ut_assert(NULL != parent_data);
+
+ /* Check that it starts at 0 and goes away when device is removed */
+ parent_data->sum += 5;
+ ut_asserteq(5, parent_data->sum);
+ device_remove(dev);
+ ut_asserteq_ptr(NULL, dev_get_parentdata(dev));
+
+ /* Check that we can do this twice */
+ ut_assertok(device_get_child_by_seq(bus, 0, &dev));
+ parent_data = dev_get_parentdata(dev);
+ ut_assert(NULL != parent_data);
+ parent_data->sum += 5;
+ ut_asserteq(5, parent_data->sum);
+
+ /* Add parent data to all children */
+ ut_assertok(uclass_get(UCLASS_TEST_FDT, &uc));
+ value = 5;
+ uclass_foreach_dev(dev, uc) {
+ /* Ignore these if they are not on this bus */
+ if (dev->parent != bus) {
+ ut_asserteq_ptr(NULL, dev_get_parentdata(dev));
+ continue;
+ }
+ ut_assertok(device_probe(dev));
+ parent_data = dev_get_parentdata(dev);
+
+ parent_data->sum = value;
+ value += 5;
+ }
+
+ /* Check it is still there */
+ value = 5;
+ uclass_foreach_dev(dev, uc) {
+ /* Ignore these if they are not on this bus */
+ if (dev->parent != bus)
+ continue;
+ parent_data = dev_get_parentdata(dev);
+
+ ut_asserteq(value, parent_data->sum);
+ value += 5;
+ }
+
+ return 0;
+}
+
+DM_TEST(dm_test_bus_parent_data, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);