return device_probe(*devp);
}
+int uclass_first_device_drvdata(enum uclass_id id, ulong driver_data,
+ struct udevice **devp)
+{
+ struct udevice *dev;
+ struct uclass *uc;
+
+ uclass_id_foreach_dev(id, dev, uc) {
+ if (dev_get_driver_data(dev) == driver_data) {
+ *devp = dev;
+
+ return device_probe(dev);
+ }
+ }
+
+ return -ENODEV;
+}
+
int uclass_bind_device(struct udevice *dev)
{
struct uclass *uc;
enum {
DM_TEST_TYPE_FIRST = 0,
DM_TEST_TYPE_SECOND,
+
+ DM_TEST_TYPE_COUNT,
};
/* The number added to the ping total on each probe */
int uclass_next_device_check(struct udevice **devp);
/**
+ * uclass_first_device_drvdata() - Find the first device with given driver data
+ *
+ * This searches through the devices for a particular uclass looking for one
+ * that has the given driver data.
+ *
+ * @id: Uclass ID to check
+ * @driver_data: Driver data to search for
+ * @devp: Returns pointer to the first matching device in that uclass, if found
+ * @return 0 if found, -ENODEV if not found, other -ve on error
+ */
+int uclass_first_device_drvdata(enum uclass_id id, ulong driver_data,
+ struct udevice **devp);
+
+/**
* uclass_resolve_seq() - Resolve a device's sequence number
*
* On entry dev->seq is -1, and dev->req_seq may be -1 (to allocate a
return 0;
}
DM_TEST(dm_test_read_int, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
+/* Test iteration through devices by drvdata */
+static int dm_test_uclass_drvdata(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+
+ ut_assertok(uclass_first_device_drvdata(UCLASS_TEST_FDT,
+ DM_TEST_TYPE_FIRST, &dev));
+ ut_asserteq_str("a-test", dev->name);
+
+ ut_assertok(uclass_first_device_drvdata(UCLASS_TEST_FDT,
+ DM_TEST_TYPE_SECOND, &dev));
+ ut_asserteq_str("d-test", dev->name);
+
+ ut_asserteq(-ENODEV, uclass_first_device_drvdata(UCLASS_TEST_FDT,
+ DM_TEST_TYPE_COUNT,
+ &dev));
+
+ return 0;
+}
+DM_TEST(dm_test_uclass_drvdata, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);