[RFC] GPIO keys
diff mbox

Message ID 20100803081551.GA16029@core.coreip.homeip.net
State Accepted
Commit 173bdd746b128241d3d6d202142820692e7dd530
Headers show

Commit Message

Dmitry Torokhov Aug. 3, 2010, 8:15 a.m. UTC
None

Patch
diff mbox

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index a9fd147..6069abe 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -39,6 +39,8 @@  struct gpio_keys_drvdata {
 	struct input_dev *input;
 	struct mutex disable_lock;
 	unsigned int n_buttons;
+	int (*enable)(struct device *dev);
+	void (*disable)(struct device *dev);
 	struct gpio_button_data data[0];
 };
 
@@ -423,6 +425,21 @@  fail2:
 	return error;
 }
 
+static int gpio_keys_open(struct input_dev *input)
+{
+	struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
+
+	return ddata->enable ? ddata->enable(input->dev.parent) : 0;
+}
+
+static void gpio_keys_close(struct input_dev *input)
+{
+	struct gpio_keys_drvdata *ddata = input_get_drvdata(input);
+
+	if (ddata->disable)
+		ddata->disable(input->dev.parent);
+}
+
 static int __devinit gpio_keys_probe(struct platform_device *pdev)
 {
 	struct gpio_keys_platform_data *pdata = pdev->dev.platform_data;
@@ -444,13 +461,18 @@  static int __devinit gpio_keys_probe(struct platform_device *pdev)
 
 	ddata->input = input;
 	ddata->n_buttons = pdata->nbuttons;
+	ddata->enable = pdata->enable;
+	ddata->disable = pdata->disable;
 	mutex_init(&ddata->disable_lock);
 
 	platform_set_drvdata(pdev, ddata);
+	input_set_drvdata(input, ddata);
 
 	input->name = pdev->name;
 	input->phys = "gpio-keys/input0";
 	input->dev.parent = &pdev->dev;
+	input->open = gpio_keys_open;
+	input->close = gpio_keys_close;
 
 	input->id.bustype = BUS_HOST;
 	input->id.vendor = 0x0001;
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index cd0b3f3..ce73a30 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -17,6 +17,8 @@  struct gpio_keys_platform_data {
 	struct gpio_keys_button *buttons;
 	int nbuttons;
 	unsigned int rep:1;		/* enable input subsystem auto repeat */
+	int (*enable)(struct device *dev);
+	void (*disable)(struct device *dev);
 };
 
 #endif