Input: rotary-encoder - use gpio_request_one()

Use gpio_request_one() instead of separate calls to gpio_request() and
gpio_direction_input() to simplify the code.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 00a7bdabb0b3dccd2d2c107ee692727dc72a7629..e261ad4e6c61ceb221439277a7664c7c054f37eb 100644 (file)
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -145,6 +145,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
        struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
        struct rotary_encoder *encoder;
        struct input_dev *input;
+       struct device *dev = &pdev->dev;
        irq_handler_t handler;
        int err;
 
@@ -180,36 +181,20 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
 
        err = input_register_device(input);
        if (err) {
-               dev_err(&pdev->dev, "failed to register input device\n");
+               dev_err(dev, "failed to register input device\n");
                goto exit_free_mem;
        }
 
        /* request the GPIOs */
-       err = gpio_request(pdata->gpio_a, DRV_NAME);
+       err = gpio_request_one(pdata->gpio_a, GPIOF_IN, dev_name(dev));
        if (err) {
-               dev_err(&pdev->dev, "unable to request GPIO %d\n",
-                       pdata->gpio_a);
+               dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_a);
                goto exit_unregister_input;
        }
 
-       err = gpio_direction_input(pdata->gpio_a);
+       err = gpio_request_one(pdata->gpio_b, GPIOF_IN, dev_name(dev));
        if (err) {
-               dev_err(&pdev->dev, "unable to set GPIO %d for input\n",
-                       pdata->gpio_a);
-               goto exit_unregister_input;
-       }
-
-       err = gpio_request(pdata->gpio_b, DRV_NAME);
-       if (err) {
-               dev_err(&pdev->dev, "unable to request GPIO %d\n",
-                       pdata->gpio_b);
-               goto exit_free_gpio_a;
-       }
-
-       err = gpio_direction_input(pdata->gpio_b);
-       if (err) {
-               dev_err(&pdev->dev, "unable to set GPIO %d for input\n",
-                       pdata->gpio_b);
+               dev_err(dev, "unable to request GPIO %d\n", pdata->gpio_b);
                goto exit_free_gpio_a;
        }
 
@@ -228,8 +213,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
                          IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
                          DRV_NAME, encoder);
        if (err) {
-               dev_err(&pdev->dev, "unable to request IRQ %d\n",
-                       encoder->irq_a);
+               dev_err(dev, "unable to request IRQ %d\n", encoder->irq_a);
                goto exit_free_gpio_b;
        }
 
@@ -237,8 +221,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev)
                          IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
                          DRV_NAME, encoder);
        if (err) {
-               dev_err(&pdev->dev, "unable to request IRQ %d\n",
-                       encoder->irq_b);
+               dev_err(dev, "unable to request IRQ %d\n", encoder->irq_b);
                goto exit_free_irq_a;
        }