Trying to use the matrix-keypad driver with GPIO drivers that require
nested irq handlers (e.g. I2C GPIO adapters like PCA9554),
request_irq() fails because the GPIO driver requires a threaded
interrupt handler.
Use request_any_context_irq() to be able to use any GPIO driver as
keypad driver.
}
if (pdata->clustered_irq > 0) {
}
if (pdata->clustered_irq > 0) {
- err = request_irq(pdata->clustered_irq,
+ err = request_any_context_irq(pdata->clustered_irq,
matrix_keypad_interrupt,
pdata->clustered_irq_flags,
"matrix-keypad", keypad);
matrix_keypad_interrupt,
pdata->clustered_irq_flags,
"matrix-keypad", keypad);
dev_err(&pdev->dev,
"Unable to acquire clustered interrupt\n");
goto err_free_rows;
}
} else {
for (i = 0; i < pdata->num_row_gpios; i++) {
dev_err(&pdev->dev,
"Unable to acquire clustered interrupt\n");
goto err_free_rows;
}
} else {
for (i = 0; i < pdata->num_row_gpios; i++) {
- err = request_irq(gpio_to_irq(pdata->row_gpios[i]),
+ err = request_any_context_irq(
+ gpio_to_irq(pdata->row_gpios[i]),
matrix_keypad_interrupt,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
"matrix-keypad", keypad);
matrix_keypad_interrupt,
IRQF_TRIGGER_RISING |
IRQF_TRIGGER_FALLING,
"matrix-keypad", keypad);
dev_err(&pdev->dev,
"Unable to acquire interrupt for GPIO line %i\n",
pdata->row_gpios[i]);
dev_err(&pdev->dev,
"Unable to acquire interrupt for GPIO line %i\n",
pdata->row_gpios[i]);