clk: test: Add test managed of_clk_add_hw_provider()

Add a test managed version of of_clk_add_hw_provider() that
automatically unregisters the clk_hw provider upon test conclusion.

Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: Rae Moar <rmoar@google.com>
Cc: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20240822002433.1163814-2-sboyd@kernel.org

diff --git a/drivers/clk/clk_kunit_helpers.c b/drivers/clk/clk_kunit_helpers.c
index 52fd25594c9607dd595fac8a6639d7cc88dccf8d..68a28e70bb61cde465a9a3cf6bb539c06d04beff 100644 (file)
--- a/drivers/clk/clk_kunit_helpers.c
+++ b/drivers/clk/clk_kunit_helpers.c
@@ -203,5 +203,35 @@ int of_clk_hw_register_kunit(struct kunit *test, struct device_node *node, struc
 }
 EXPORT_SYMBOL_GPL(of_clk_hw_register_kunit);
 
+KUNIT_DEFINE_ACTION_WRAPPER(of_clk_del_provider_wrapper,
+                           of_clk_del_provider, struct device_node *);
+
+/**
+ * of_clk_add_hw_provider_kunit() - Test managed of_clk_add_hw_provider()
+ * @test: The test context
+ * @np: Device node pointer associated with clock provider
+ * @get: Callback for decoding clk_hw
+ * @data: Context pointer for @get callback.
+ *
+ * Just like of_clk_add_hw_provider(), except the clk_hw provider is managed by
+ * the test case and is automatically unregistered after the test case
+ * concludes.
+ *
+ * Return: 0 on success or a negative errno value on failure.
+ */
+int of_clk_add_hw_provider_kunit(struct kunit *test, struct device_node *np,
+                                struct clk_hw *(*get)(struct of_phandle_args *clkspec, void *data),
+                                void *data)
+{
+       int ret;
+
+       ret = of_clk_add_hw_provider(np, get, data);
+       if (ret)
+               return ret;
+
+       return kunit_add_action_or_reset(test, of_clk_del_provider_wrapper, np);
+}
+EXPORT_SYMBOL_GPL(of_clk_add_hw_provider_kunit);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("KUnit helpers for clk providers and consumers");

diff --git a/include/kunit/clk.h b/include/kunit/clk.h
index 73bc99cefe7b534c1dff85b0c2b2d51673a3c524..0afae7688157b807f5be589b5d574ec43b49109c 100644 (file)
--- a/include/kunit/clk.h
+++ b/include/kunit/clk.h
@@ -25,4 +25,8 @@ int clk_hw_register_kunit(struct kunit *test, struct device *dev, struct clk_hw
 int of_clk_hw_register_kunit(struct kunit *test, struct device_node *node,
                             struct clk_hw *hw);
 
+int of_clk_add_hw_provider_kunit(struct kunit *test, struct device_node *np,
+                                struct clk_hw *(*get)(struct of_phandle_args *clkspec, void *data),
+                                void *data);
+
 #endif