X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Finput%2Fkeyboard%2Fgpio_keys.c;h=bbd00c3fe98ca18999b19c011a8c0040f3e9fb9b;hb=d7b5247bbcfba2bc96d4b3dec9086a4f1a31363b;hp=3eddf52a0bba5cabbe76a1f41cedee7c5fbf8ffc;hpb=7b19ada2ed3c1eccb9fe94d74b05e1428224663d;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 3eddf52a0bb..bbd00c3fe98 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -43,10 +43,11 @@ static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
 
 			input_event(input, type, button->code, !!state);
 			input_sync(input);
+			return IRQ_HANDLED;
 		}
 	}
 
-	return IRQ_HANDLED;
+	return IRQ_NONE;
 }
 
 static int __devinit gpio_keys_probe(struct platform_device *pdev)
@@ -75,16 +76,32 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 
 	for (i = 0; i < pdata->nbuttons; i++) {
 		struct gpio_keys_button *button = &pdata->buttons[i];
-		int irq = gpio_to_irq(button->gpio);
+		int irq;
 		unsigned int type = button->type ?: EV_KEY;
 
+		error = gpio_request(button->gpio, button->desc ?: "gpio_keys");
+		if (error < 0) {
+			pr_err("gpio-keys: failed to request GPIO %d,"
+				" error %d\n", button->gpio, error);
+			goto fail;
+		}
+
+		error = gpio_direction_input(button->gpio);
+		if (error < 0) {
+			pr_err("gpio-keys: failed to configure input"
+				" direction for GPIO %d, error %d\n",
+				button->gpio, error);
+			gpio_free(button->gpio);
+			goto fail;
+		}
+
+		irq = gpio_to_irq(button->gpio);
 		if (irq < 0) {
 			error = irq;
-			printk(KERN_ERR
-				"gpio-keys: "
-				"Unable to get irq number for GPIO %d,"
-				"error %d\n",
+			pr_err("gpio-keys: Unable to get irq number"
+				" for GPIO %d, error %d\n",
 				button->gpio, error);
+			gpio_free(button->gpio);
 			goto fail;
 		}
 
@@ -94,9 +111,9 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 				    button->desc ? button->desc : "gpio_keys",
 				    pdev);
 		if (error) {
-			printk(KERN_ERR
-				"gpio-keys: Unable to claim irq %d; error %d\n",
+			pr_err("gpio-keys: Unable to claim irq %d; error %d\n",
 				irq, error);
+			gpio_free(button->gpio);
 			goto fail;
 		}
 
@@ -108,8 +125,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 
 	error = input_register_device(input);
 	if (error) {
-		printk(KERN_ERR
-			"gpio-keys: Unable to register input device, "
+		pr_err("gpio-keys: Unable to register input device, "
 			"error: %d\n", error);
 		goto fail;
 	}
@@ -119,8 +135,10 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
 	return 0;
 
  fail:
-	while (--i >= 0)
+	while (--i >= 0) {
 		free_irq(gpio_to_irq(pdata->buttons[i].gpio), pdev);
+		gpio_free(pdata->buttons[i].gpio);
+	}
 
 	platform_set_drvdata(pdev, NULL);
 	input_free_device(input);
@@ -139,6 +157,7 @@ static int __devexit gpio_keys_remove(struct platform_device *pdev)
 	for (i = 0; i < pdata->nbuttons; i++) {
 		int irq = gpio_to_irq(pdata->buttons[i].gpio);
 		free_irq(irq, pdev);
+		gpio_free(pdata->buttons[i].gpio);
 	}
 
 	input_unregister_device(input);
@@ -195,6 +214,7 @@ struct platform_driver gpio_keys_device_driver = {
 	.resume		= gpio_keys_resume,
 	.driver		= {
 		.name	= "gpio-keys",
+		.owner	= THIS_MODULE,
 	}
 };
 
@@ -214,3 +234,4 @@ module_exit(gpio_keys_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Phil Blundell <pb@handhelds.org>");
 MODULE_DESCRIPTION("Keyboard driver for CPU GPIOs");
+MODULE_ALIAS("platform:gpio-keys");