diff options
Diffstat (limited to 'drivers/input/keyboard/matrix_keypad.c')
| -rw-r--r-- | drivers/input/keyboard/matrix_keypad.c | 53 |
1 files changed, 30 insertions, 23 deletions
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c index a4ff08caa44b..98ae281bedb0 100644 --- a/drivers/input/keyboard/matrix_keypad.c +++ b/drivers/input/keyboard/matrix_keypad.c @@ -299,11 +299,11 @@ static int matrix_keypad_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(matrix_keypad_pm_ops, matrix_keypad_suspend, matrix_keypad_resume); -static int __devinit init_matrix_gpio(struct platform_device *pdev, - struct matrix_keypad *keypad) +static int __devinit matrix_keypad_init_gpio(struct platform_device *pdev, + struct matrix_keypad *keypad) { const struct matrix_keypad_platform_data *pdata = keypad->pdata; - int i, err = -EINVAL; + int i, err; /* initialized strobe lines as outputs, activated */ for (i = 0; i < pdata->num_col_gpios; i++) { @@ -349,8 +349,7 @@ static int __devinit init_matrix_gpio(struct platform_device *pdev, "matrix-keypad", keypad); if (err) { dev_err(&pdev->dev, - "Unable to acquire interrupt " - "for GPIO line %i\n", + "Unable to acquire interrupt for GPIO line %i\n", pdata->row_gpios[i]); goto err_free_irqs; } @@ -376,6 +375,25 @@ err_free_cols: return err; } +static void matrix_keypad_free_gpio(struct matrix_keypad *keypad) +{ + const struct matrix_keypad_platform_data *pdata = keypad->pdata; + int i; + + if (pdata->clustered_irq > 0) { + free_irq(pdata->clustered_irq, keypad); + } else { + for (i = 0; i < pdata->num_row_gpios; i++) + free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad); + } + + for (i = 0; i < pdata->num_row_gpios; i++) + gpio_free(pdata->row_gpios[i]); + + for (i = 0; i < pdata->num_col_gpios; i++) + gpio_free(pdata->col_gpios[i]); +} + static int __devinit matrix_keypad_probe(struct platform_device *pdev) { const struct matrix_keypad_platform_data *pdata; @@ -435,19 +453,21 @@ static int __devinit matrix_keypad_probe(struct platform_device *pdev) input_set_capability(input_dev, EV_MSC, MSC_SCAN); input_set_drvdata(input_dev, keypad); - err = init_matrix_gpio(pdev, keypad); + err = matrix_keypad_init_gpio(pdev, keypad); if (err) goto err_free_mem; err = input_register_device(keypad->input_dev); if (err) - goto err_free_mem; + goto err_free_gpio; device_init_wakeup(&pdev->dev, pdata->wakeup); platform_set_drvdata(pdev, keypad); return 0; +err_free_gpio: + matrix_keypad_free_gpio(keypad); err_free_mem: input_free_device(input_dev); kfree(keypad); @@ -457,28 +477,15 @@ err_free_mem: static int __devexit matrix_keypad_remove(struct platform_device *pdev) { struct matrix_keypad *keypad = platform_get_drvdata(pdev); - const struct matrix_keypad_platform_data *pdata = keypad->pdata; - int i; device_init_wakeup(&pdev->dev, 0); - if (pdata->clustered_irq > 0) { - free_irq(pdata->clustered_irq, keypad); - } else { - for (i = 0; i < pdata->num_row_gpios; i++) - free_irq(gpio_to_irq(pdata->row_gpios[i]), keypad); - } - - for (i = 0; i < pdata->num_row_gpios; i++) - gpio_free(pdata->row_gpios[i]); - - for (i = 0; i < pdata->num_col_gpios; i++) - gpio_free(pdata->col_gpios[i]); - + matrix_keypad_free_gpio(keypad); input_unregister_device(keypad->input_dev); - platform_set_drvdata(pdev, NULL); kfree(keypad); + platform_set_drvdata(pdev, NULL); + return 0; } |
