1 // SPDX-License-Identifier: GPL-2.0
3  * Kunit test for clk gate basic type
5 #include <linux/clk.h>
6 #include <linux/clk-provider.h>
16 	pdev = platform_device_register_simple("test_gate_device", -1, NULL, 0);  in clk_gate_register_test_dev()
19 	ret = clk_hw_register_gate(&pdev->dev, "test_gate", NULL, 0, NULL,  in clk_gate_register_test_dev()
31 	struct clk_hw *parent;  in clk_gate_register_test_parent_names()  local
34 	parent = clk_hw_register_fixed_rate(NULL, "test_parent", NULL, 0,  in clk_gate_register_test_parent_names()
36 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent);  in clk_gate_register_test_parent_names()
41 	KUNIT_EXPECT_PTR_EQ(test, parent, clk_hw_get_parent(ret));  in clk_gate_register_test_parent_names()
44 	clk_hw_unregister_fixed_rate(parent);  in clk_gate_register_test_parent_names()
49 	struct clk_hw *parent;  in clk_gate_register_test_parent_data()  local
53 	parent = clk_hw_register_fixed_rate(NULL, "test_parent", NULL, 0,  in clk_gate_register_test_parent_data()
55 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent);  in clk_gate_register_test_parent_data()
56 	pdata.hw = parent;  in clk_gate_register_test_parent_data()
61 	KUNIT_EXPECT_PTR_EQ(test, parent, clk_hw_get_parent(ret));  in clk_gate_register_test_parent_data()
64 	clk_hw_unregister_fixed_rate(parent);  in clk_gate_register_test_parent_data()
69 	struct clk_hw *parent;  in clk_gate_register_test_parent_data_legacy()  local
73 	parent = clk_hw_register_fixed_rate(NULL, "test_parent", NULL, 0,  in clk_gate_register_test_parent_data_legacy()
75 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent);  in clk_gate_register_test_parent_data_legacy()
81 	KUNIT_EXPECT_PTR_EQ(test, parent, clk_hw_get_parent(ret));  in clk_gate_register_test_parent_data_legacy()
84 	clk_hw_unregister_fixed_rate(parent);  in clk_gate_register_test_parent_data_legacy()
89 	struct clk_hw *parent;  in clk_gate_register_test_parent_hw()  local
92 	parent = clk_hw_register_fixed_rate(NULL, "test_parent", NULL, 0,  in clk_gate_register_test_parent_hw()
94 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent);  in clk_gate_register_test_parent_hw()
96 	ret = clk_hw_register_gate_parent_hw(NULL, "test_gate", parent, 0, NULL,  in clk_gate_register_test_parent_hw()
99 	KUNIT_EXPECT_PTR_EQ(test, parent, clk_hw_get_parent(ret));  in clk_gate_register_test_parent_hw()
102 	clk_hw_unregister_fixed_rate(parent);  in clk_gate_register_test_parent_hw()
126 	.name = "clk-gate-register-test",
133 	struct clk_hw *parent;  member
141 	test->priv = ctx = kunit_kzalloc(test, sizeof(*ctx), GFP_KERNEL);  in clk_gate_test_alloc_ctx()
143 	ctx->fake_mem = (void __force __iomem *)&ctx->fake_reg;  in clk_gate_test_alloc_ctx()
150 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_parent_rate()
151 	struct clk_hw *parent = ctx->parent;  in clk_gate_test_parent_rate()  local
152 	struct clk_hw *hw = ctx->hw;  in clk_gate_test_parent_rate()
153 	unsigned long prate = clk_hw_get_rate(parent);  in clk_gate_test_parent_rate()
161 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_enable()
162 	struct clk_hw *parent = ctx->parent;  in clk_gate_test_enable()  local
163 	struct clk_hw *hw = ctx->hw;  in clk_gate_test_enable()
164 	struct clk *clk = hw->clk;  in clk_gate_test_enable()  local
167 	KUNIT_ASSERT_EQ(test, clk_prepare_enable(clk), 0);  in clk_gate_test_enable()
169 	KUNIT_EXPECT_EQ(test, enable_val, ctx->fake_reg);  in clk_gate_test_enable()
172 	KUNIT_EXPECT_TRUE(test, clk_hw_is_enabled(parent));  in clk_gate_test_enable()
173 	KUNIT_EXPECT_TRUE(test, clk_hw_is_prepared(parent));  in clk_gate_test_enable()
178 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_disable()
179 	struct clk_hw *parent = ctx->parent;  in clk_gate_test_disable()  local
180 	struct clk_hw *hw = ctx->hw;  in clk_gate_test_disable()
181 	struct clk *clk = hw->clk;  in clk_gate_test_disable()  local
185 	KUNIT_ASSERT_EQ(test, clk_prepare_enable(clk), 0);  in clk_gate_test_disable()
186 	KUNIT_ASSERT_EQ(test, enable_val, ctx->fake_reg);  in clk_gate_test_disable()
188 	clk_disable_unprepare(clk);  in clk_gate_test_disable()
189 	KUNIT_EXPECT_EQ(test, disable_val, ctx->fake_reg);  in clk_gate_test_disable()
192 	KUNIT_EXPECT_FALSE(test, clk_hw_is_enabled(parent));  in clk_gate_test_disable()
193 	KUNIT_EXPECT_FALSE(test, clk_hw_is_prepared(parent));  in clk_gate_test_disable()
205 	struct clk_hw *parent;  in clk_gate_test_init()  local
210 	parent = clk_hw_register_fixed_rate(NULL, "test_parent", NULL, 0,  in clk_gate_test_init()
212 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent);  in clk_gate_test_init()
214 	hw = clk_hw_register_gate_parent_hw(NULL, "test_gate", parent, 0,  in clk_gate_test_init()
215 					    ctx->fake_mem, 5, 0, NULL);  in clk_gate_test_init()
218 	ctx->hw = hw;  in clk_gate_test_init()
219 	ctx->parent = parent;  in clk_gate_test_init()
226 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_exit()
228 	clk_hw_unregister_gate(ctx->hw);  in clk_gate_test_exit()
229 	clk_hw_unregister_fixed_rate(ctx->parent);  in clk_gate_test_exit()
233 	.name = "clk-gate-test",
241 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_invert_enable()
242 	struct clk_hw *parent = ctx->parent;  in clk_gate_test_invert_enable()  local
243 	struct clk_hw *hw = ctx->hw;  in clk_gate_test_invert_enable()
244 	struct clk *clk = hw->clk;  in clk_gate_test_invert_enable()  local
247 	KUNIT_ASSERT_EQ(test, clk_prepare_enable(clk), 0);  in clk_gate_test_invert_enable()
249 	KUNIT_EXPECT_EQ(test, enable_val, ctx->fake_reg);  in clk_gate_test_invert_enable()
252 	KUNIT_EXPECT_TRUE(test, clk_hw_is_enabled(parent));  in clk_gate_test_invert_enable()
253 	KUNIT_EXPECT_TRUE(test, clk_hw_is_prepared(parent));  in clk_gate_test_invert_enable()
258 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_invert_disable()
259 	struct clk_hw *parent = ctx->parent;  in clk_gate_test_invert_disable()  local
260 	struct clk_hw *hw = ctx->hw;  in clk_gate_test_invert_disable()
261 	struct clk *clk = hw->clk;  in clk_gate_test_invert_disable()  local
265 	KUNIT_ASSERT_EQ(test, clk_prepare_enable(clk), 0);  in clk_gate_test_invert_disable()
266 	KUNIT_ASSERT_EQ(test, enable_val, ctx->fake_reg);  in clk_gate_test_invert_disable()
268 	clk_disable_unprepare(clk);  in clk_gate_test_invert_disable()
269 	KUNIT_EXPECT_EQ(test, disable_val, ctx->fake_reg);  in clk_gate_test_invert_disable()
272 	KUNIT_EXPECT_FALSE(test, clk_hw_is_enabled(parent));  in clk_gate_test_invert_disable()
273 	KUNIT_EXPECT_FALSE(test, clk_hw_is_prepared(parent));  in clk_gate_test_invert_disable()
284 	struct clk_hw *parent;  in clk_gate_test_invert_init()  local
289 	parent = clk_hw_register_fixed_rate(NULL, "test_parent", NULL, 0,  in clk_gate_test_invert_init()
291 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent);  in clk_gate_test_invert_init()
293 	ctx->fake_reg = BIT(15); /* Default to off */  in clk_gate_test_invert_init()
294 	hw = clk_hw_register_gate_parent_hw(NULL, "test_gate", parent, 0,  in clk_gate_test_invert_init()
295 					    ctx->fake_mem, 15,  in clk_gate_test_invert_init()
299 	ctx->hw = hw;  in clk_gate_test_invert_init()
300 	ctx->parent = parent;  in clk_gate_test_invert_init()
306 	.name = "clk-gate-invert-test",
314 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_hiword_enable()
315 	struct clk_hw *parent = ctx->parent;  in clk_gate_test_hiword_enable()  local
316 	struct clk_hw *hw = ctx->hw;  in clk_gate_test_hiword_enable()
317 	struct clk *clk = hw->clk;  in clk_gate_test_hiword_enable()  local
320 	KUNIT_ASSERT_EQ(test, clk_prepare_enable(clk), 0);  in clk_gate_test_hiword_enable()
322 	KUNIT_EXPECT_EQ(test, enable_val, ctx->fake_reg);  in clk_gate_test_hiword_enable()
325 	KUNIT_EXPECT_TRUE(test, clk_hw_is_enabled(parent));  in clk_gate_test_hiword_enable()
326 	KUNIT_EXPECT_TRUE(test, clk_hw_is_prepared(parent));  in clk_gate_test_hiword_enable()
331 	struct clk_gate_test_context *ctx = test->priv;  in clk_gate_test_hiword_disable()
332 	struct clk_hw *parent = ctx->parent;  in clk_gate_test_hiword_disable()  local
333 	struct clk_hw *hw = ctx->hw;  in clk_gate_test_hiword_disable()
334 	struct clk *clk = hw->clk;  in clk_gate_test_hiword_disable()  local
338 	KUNIT_ASSERT_EQ(test, clk_prepare_enable(clk), 0);  in clk_gate_test_hiword_disable()
339 	KUNIT_ASSERT_EQ(test, enable_val, ctx->fake_reg);  in clk_gate_test_hiword_disable()
341 	clk_disable_unprepare(clk);  in clk_gate_test_hiword_disable()
342 	KUNIT_EXPECT_EQ(test, disable_val, ctx->fake_reg);  in clk_gate_test_hiword_disable()
345 	KUNIT_EXPECT_FALSE(test, clk_hw_is_enabled(parent));  in clk_gate_test_hiword_disable()
346 	KUNIT_EXPECT_FALSE(test, clk_hw_is_prepared(parent));  in clk_gate_test_hiword_disable()
357 	struct clk_hw *parent;  in clk_gate_test_hiword_init()  local
362 	parent = clk_hw_register_fixed_rate(NULL, "test_parent", NULL, 0,  in clk_gate_test_hiword_init()
364 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, parent);  in clk_gate_test_hiword_init()
366 	hw = clk_hw_register_gate_parent_hw(NULL, "test_gate", parent, 0,  in clk_gate_test_hiword_init()
367 					    ctx->fake_mem, 9,  in clk_gate_test_hiword_init()
371 	ctx->hw = hw;  in clk_gate_test_hiword_init()
372 	ctx->parent = parent;  in clk_gate_test_hiword_init()
378 	.name = "clk-gate-hiword-test",
390 	ctx->fake_reg = BIT(7);  in clk_gate_test_is_enabled()
391 	hw = clk_hw_register_gate(NULL, "test_gate", NULL, 0, ctx->fake_mem, 7,  in clk_gate_test_is_enabled()
405 	ctx->fake_reg = BIT(4);  in clk_gate_test_is_disabled()
406 	hw = clk_hw_register_gate(NULL, "test_gate", NULL, 0, ctx->fake_mem, 7,  in clk_gate_test_is_disabled()
420 	ctx->fake_reg = BIT(31);  in clk_gate_test_is_enabled_inverted()
421 	hw = clk_hw_register_gate(NULL, "test_gate", NULL, 0, ctx->fake_mem, 2,  in clk_gate_test_is_enabled_inverted()
435 	ctx->fake_reg = BIT(29);  in clk_gate_test_is_disabled_inverted()
436 	hw = clk_hw_register_gate(NULL, "test_gate", NULL, 0, ctx->fake_mem, 29,  in clk_gate_test_is_disabled_inverted()
453 	.name = "clk-gate-is_enabled-test",