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Input: matrix_keypad - use request_any_context_irq() 

When 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.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Lothar Waßmann 2014-09-09 14:41:16 -07:00 committed by Dmitry Torokhov
parent 651b460881
commit 24e4d21c42
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/input/keyboard/matrix_keypad.c
View File

@ -332,23 +332,24 @@ static int matrix_keypad_init_gpio(struct platform_device *pdev,
}
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);
if (err) {
if (err < 0) {
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);
if (err) {
if (err < 0) {
dev_err(&pdev->dev,
"Unable to acquire interrupt for GPIO line %i\n",
pdata->row_gpios[i]);