--- /dev/null
+/*
+ * Copyright (c) 2013 Google, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __DM_TEST_H
+#define __DM_TEST_H
+
+#include <dm.h>
+
+/**
+ * struct dm_test_cdata - configuration data for test instance
+ *
+ * @ping_add: Amonut to add each time we get a ping
+ * @base: Base address of this device
+ */
+struct dm_test_pdata {
+ int ping_add;
+ uint32_t base;
+};
+
+/**
+ * struct test_ops - Operations supported by the test device
+ *
+ * @ping: Ping operation
+ * @dev: Device to operate on
+ * @pingval: Value to ping the device with
+ * @pingret: Returns resulting value from driver
+ * @return 0 if OK, -ve on error
+ */
+struct test_ops {
+ int (*ping)(struct device *dev, int pingval, int *pingret);
+};
+
+/* Operations that our test driver supports */
+enum {
+ DM_TEST_OP_BIND = 0,
+ DM_TEST_OP_UNBIND,
+ DM_TEST_OP_PROBE,
+ DM_TEST_OP_REMOVE,
+
+ /* For uclass */
+ DM_TEST_OP_POST_BIND,
+ DM_TEST_OP_PRE_UNBIND,
+ DM_TEST_OP_POST_PROBE,
+ DM_TEST_OP_PRE_REMOVE,
+ DM_TEST_OP_INIT,
+ DM_TEST_OP_DESTROY,
+
+ DM_TEST_OP_COUNT,
+};
+
+/* Test driver types */
+enum {
+ DM_TEST_TYPE_FIRST = 0,
+ DM_TEST_TYPE_SECOND,
+};
+
+/* The number added to the ping total on each probe */
+#define DM_TEST_START_TOTAL 5
+
+/**
+ * struct dm_test_priv - private data for the test devices
+ */
+struct dm_test_priv {
+ int ping_total;
+ int op_count[DM_TEST_OP_COUNT];
+};
+
+/**
+ * struct dm_test_perdev_class_priv - private per-device data for test uclass
+ */
+struct dm_test_uclass_perdev_priv {
+ int base_add;
+};
+
+/**
+ * struct dm_test_uclass_priv - private data for test uclass
+ */
+struct dm_test_uclass_priv {
+ int total_add;
+};
+
+/*
+ * Operation counts for the test driver, used to check that each method is
+ * called correctly
+ */
+extern int dm_testdrv_op_count[DM_TEST_OP_COUNT];
+
+extern struct dm_test_state global_test_state;
+
+/*
+ * struct dm_test_state - Entire state of dm test system
+ *
+ * This is often abreviated to dms.
+ *
+ * @root: Root device
+ * @testdev: Test device
+ * @fail_count: Number of tests that failed
+ * @force_fail_alloc: Force all memory allocs to fail
+ * @skip_post_probe: Skip uclass post-probe processing
+ */
+struct dm_test_state {
+ struct device *root;
+ struct device *testdev;
+ int fail_count;
+ int force_fail_alloc;
+ int skip_post_probe;
+};
+
+/* Test flags for each test */
+enum {
+ DM_TESTF_SCAN_PDATA = 1 << 0, /* test needs platform data */
+ DM_TESTF_PROBE_TEST = 1 << 1, /* probe test uclass */
+ DM_TESTF_SCAN_FDT = 1 << 2, /* scan device tree */
+};
+
+/**
+ * struct dm_test - Information about a driver model test
+ *
+ * @name: Name of test
+ * @func: Function to call to perform test
+ * @flags: Flags indicated pre-conditions for test
+ */
+struct dm_test {
+ const char *name;
+ int (*func)(struct dm_test_state *dms);
+ int flags;
+};
+
+/* Declare a new driver model test */
+#define DM_TEST(_name, _flags) \
+ ll_entry_declare(struct dm_test, _name, dm_test) = { \
+ .name = #_name, \
+ .flags = _flags, \
+ .func = _name, \
+ }
+
+/* Declare ping methods for the drivers */
+int test_ping(struct device *dev, int pingval, int *pingret);
+int testfdt_ping(struct device *dev, int pingval, int *pingret);
+
+/**
+ * dm_check_operations() - Check that we can perform ping operations
+ *
+ * This checks that the ping operations work as expected for a device
+ *
+ * @dms: Overall test state
+ * @dev: Device to test
+ * @base: Base address, used to check ping return value
+ * @priv: Pointer to private test information
+ * @return 0 if OK, -ve on error
+ */
+int dm_check_operations(struct dm_test_state *dms, struct device *dev,
+ uint32_t base, struct dm_test_priv *priv);
+
+/**
+ * dm_test_main() - Run all the tests
+ *
+ * This runs all available driver model tests
+ *
+ * @return 0 if OK, -ve on error
+ */
+int dm_test_main(void);
+
+#endif
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