1 // SPDX-License-Identifier: GPL-2.0-only
6 #define pr_fmt(fmt) "tlmm-test: " fmt
22  * (pinctrl-msm) delivers expected number of interrupts in response to changing
26  * "gpio", which the tester is expected to specify an unused and non-connected
40 static int tlmm_test_gpio = -1;
53  * struct tlmm_test_priv - Per-test context
98 	if (priv->intr_op & TLMM_TEST_COUNT)  in tlmm_test_intr_fn()
99 		atomic_inc(&priv->intr_count);  in tlmm_test_intr_fn()
101 	if (priv->intr_op & TLMM_TEST_OUTPUT_LOW)  in tlmm_test_intr_fn()
103 	if (priv->intr_op & TLMM_TEST_OUTPUT_HIGH)  in tlmm_test_intr_fn()
106 	if (atomic_dec_if_positive(&priv->intr_op_remain) > 0) {  in tlmm_test_intr_fn()
109 		if (priv->intr_op & TLMM_TEST_THEN_LOW)  in tlmm_test_intr_fn()
111 		if (priv->intr_op & TLMM_TEST_THEN_HIGH)  in tlmm_test_intr_fn()
115 	return priv->intr_op & TLMM_TEST_WAKE_THREAD ? IRQ_WAKE_THREAD : IRQ_HANDLED;  in tlmm_test_intr_fn()
122 	if (priv->thread_op & TLMM_TEST_COUNT)  in tlmm_test_intr_thread_fn()
123 		atomic_inc(&priv->thread_count);  in tlmm_test_intr_thread_fn()
125 	if (priv->thread_op & TLMM_TEST_OUTPUT_LOW)  in tlmm_test_intr_thread_fn()
127 	if (priv->thread_op & TLMM_TEST_OUTPUT_HIGH)  in tlmm_test_intr_thread_fn()
130 	if (atomic_dec_if_positive(&priv->thread_op_remain) > 0) {  in tlmm_test_intr_thread_fn()
132 		if (priv->thread_op & TLMM_TEST_THEN_LOW)  in tlmm_test_intr_thread_fn()
134 		if (priv->thread_op & TLMM_TEST_THEN_HIGH)  in tlmm_test_intr_thread_fn()
143 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_request_hard_irq()
146 	ret = request_irq(tlmm_suite.irq, tlmm_test_intr_fn, irqflags, test->name, priv);  in tlmm_test_request_hard_irq()
152 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_request_threaded_irq()
157 				   irqflags, test->name, priv);  in tlmm_test_request_threaded_irq()
164 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_silent()
166 	priv->intr_op = TLMM_TEST_COUNT;  in tlmm_test_silent()
168 	/* GPIO line at non-triggering level */  in tlmm_test_silent()
178 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 0);  in tlmm_test_silent()
190  * Test that no FALLING interrupts are triggered on a silent pin
214  * Square wave with 10 high pulses, assert that we get 10 rising interrupts
218 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_rising()
221 	priv->intr_op = TLMM_TEST_COUNT;  in tlmm_test_rising()
235 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_rising()
239  * Square wave with 10 low pulses, assert that we get 10 falling interrupts
243 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_falling()
246 	priv->intr_op = TLMM_TEST_COUNT;  in tlmm_test_falling()
259 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_falling()
264  * source", assert we get 10 interrupts
268 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_low()
271 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_HIGH;  in tlmm_test_low()
272 	atomic_set(&priv->intr_op_remain, 9);  in tlmm_test_low()
284 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_low()
289  * source", assert we get 10 interrupts
293 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_high()
296 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_LOW;  in tlmm_test_high()
297 	atomic_set(&priv->intr_op_remain, 9);  in tlmm_test_high()
309 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_high()
314  * simulate a new interrupt, repeated 10 times, assert we get 10 interrupts
318 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_falling_in_handler()
320 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_HIGH | TLMM_TEST_THEN_LOW;  in tlmm_test_falling_in_handler()
321 	atomic_set(&priv->intr_op_remain, 10);  in tlmm_test_falling_in_handler()
331 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_falling_in_handler()
336  * simulate a new interrupt, repeated 10 times, assert we get 10 interrupts
340 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_rising_in_handler()
342 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_LOW | TLMM_TEST_THEN_HIGH;  in tlmm_test_rising_in_handler()
343 	atomic_set(&priv->intr_op_remain, 10);  in tlmm_test_rising_in_handler()
353 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_rising_in_handler()
357  * Square wave with 10 high pulses, assert that we get 10 rising hard and
362 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_thread_rising()
365 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_WAKE_THREAD;  in tlmm_test_thread_rising()
366 	priv->thread_op = TLMM_TEST_COUNT;  in tlmm_test_thread_rising()
379 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_thread_rising()
380 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->thread_count), 10);  in tlmm_test_thread_rising()
384  * Square wave with 10 low pulses, assert that we get 10 falling interrupts
388 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_thread_falling()
391 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_WAKE_THREAD;  in tlmm_test_thread_falling()
392 	priv->thread_op = TLMM_TEST_COUNT;  in tlmm_test_thread_falling()
405 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_thread_falling()
406 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->thread_count), 10);  in tlmm_test_thread_falling()
411  * interrupt source", assert we get 10 interrupts
415 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_thread_high()
418 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_WAKE_THREAD;  in tlmm_test_thread_high()
419 	priv->thread_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_LOW;  in tlmm_test_thread_high()
430 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_thread_high()
431 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->thread_count), 10);  in tlmm_test_thread_high()
436  * interrupt source", assert we get 10 interrupts
440 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_thread_low()
443 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_WAKE_THREAD;  in tlmm_test_thread_low()
444 	priv->thread_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_HIGH;  in tlmm_test_thread_low()
455 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_thread_low()
456 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->thread_count), 10);  in tlmm_test_thread_low()
461  * threaded handler to simulate a new interrupt, repeated 10 times, assert we
466 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_thread_rising_in_handler()
468 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_LOW | TLMM_TEST_WAKE_THREAD;  in tlmm_test_thread_rising_in_handler()
469 	priv->thread_op = TLMM_TEST_COUNT | TLMM_TEST_THEN_HIGH;  in tlmm_test_thread_rising_in_handler()
470 	atomic_set(&priv->thread_op_remain, 10);  in tlmm_test_thread_rising_in_handler()
480 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_thread_rising_in_handler()
481 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->thread_count), 10);  in tlmm_test_thread_rising_in_handler()
486  * threaded handler to simulate a new interrupt, repeated 10 times, assert we
491 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_thread_falling_in_handler()
493 	priv->intr_op = TLMM_TEST_COUNT | TLMM_TEST_OUTPUT_HIGH | TLMM_TEST_WAKE_THREAD;  in tlmm_test_thread_falling_in_handler()
494 	priv->thread_op = TLMM_TEST_COUNT | TLMM_TEST_THEN_LOW;  in tlmm_test_thread_falling_in_handler()
495 	atomic_set(&priv->thread_op_remain, 10);  in tlmm_test_thread_falling_in_handler()
505 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 10);  in tlmm_test_thread_falling_in_handler()
506 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->thread_count), 10);  in tlmm_test_thread_falling_in_handler()
510  * Validate that edge interrupts occurring while irq is disabled is delivered
515 	struct tlmm_test_priv *priv = test->priv;  in tlmm_test_rising_while_disabled()
519 	priv->intr_op = TLMM_TEST_COUNT;  in tlmm_test_rising_while_disabled()
520 	atomic_set(&priv->thread_op_remain, 10);  in tlmm_test_rising_while_disabled()
528 	before_edge = atomic_read(&priv->intr_count);  in tlmm_test_rising_while_disabled()
532 	after_edge = atomic_read(&priv->intr_count);  in tlmm_test_rising_while_disabled()
542 	KUNIT_ASSERT_EQ(test, atomic_read(&priv->intr_count), 1);  in tlmm_test_rising_while_disabled()
552 	atomic_set(&priv->intr_count, 0);  in tlmm_test_init()
553 	atomic_set(&priv->thread_count, 0);  in tlmm_test_init()
555 	atomic_set(&priv->intr_op_remain, 0);  in tlmm_test_init()
556 	atomic_set(&priv->thread_op_remain, 0);  in tlmm_test_init()
558 	test->priv = priv;  in tlmm_test_init()
568 	{ .compatible = "qcom,sc8280xp-tlmm" },
569 	{ .compatible = "qcom,x1e80100-tlmm" },
581 		pr_err("use the tlmm-test.gpio module parameter to specify which GPIO to use\n");  in tlmm_test_init_suite()
582 		return -EINVAL;  in tlmm_test_init_suite()
588 		return -EINVAL;  in tlmm_test_init_suite()
597 		return -ENOMEM;  in tlmm_test_init_suite()
620 	return -EINVAL;  in tlmm_test_init_suite()
629 	tlmm_suite.irq = -1;  in tlmm_test_exit_suite()
654 	.name = "tlmm-test",