From 24e4d21c4252fb6d5a7e75d1e1ee47c2ce38ae99 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Lothar=20Wa=C3=9Fmann?= Date: Tue, 9 Sep 2014 14:41:16 -0700 Subject: [PATCH] Input: matrix_keypad - use request_any_context_irq() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/matrix_keypad.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index 8d2e19e..e651fa6 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -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]); -- 2.7.4