[PATCH] drivers/input/touchscreen: convert to dynamic input_dev allocation
Input: convert drivers/input/touchscreen to dynamic input_dev allocation
This is required for input_dev sysfs integration
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/input/touchscreen/mtouch.c b/drivers/input/touchscreen/mtouch.c
index aa8ee78..1d0d37e 100644
--- a/drivers/input/touchscreen/mtouch.c
+++ b/drivers/input/touchscreen/mtouch.c
@@ -51,14 +51,12 @@
#define MTOUCH_GET_YC(data) (((data[4])<<7) | data[3])
#define MTOUCH_GET_TOUCHED(data) (MTOUCH_FORMAT_TABLET_TOUCH_BIT & data[0])
-static char *mtouch_name = "MicroTouch Serial TouchScreen";
-
/*
* Per-touchscreen data.
*/
struct mtouch {
- struct input_dev dev;
+ struct input_dev *dev;
struct serio *serio;
int idx;
unsigned char data[MTOUCH_MAX_LENGTH];
@@ -67,7 +65,7 @@
static void mtouch_process_format_tablet(struct mtouch *mtouch, struct pt_regs *regs)
{
- struct input_dev *dev = &mtouch->dev;
+ struct input_dev *dev = mtouch->dev;
if (MTOUCH_FORMAT_TABLET_LENGTH == ++mtouch->idx) {
input_regs(dev, regs);
@@ -116,9 +114,11 @@
{
struct mtouch* mtouch = serio_get_drvdata(serio);
- input_unregister_device(&mtouch->dev);
+ input_get_device(mtouch->dev);
+ input_unregister_device(mtouch->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
+ input_put_device(mtouch->dev);
kfree(mtouch);
}
@@ -131,46 +131,46 @@
static int mtouch_connect(struct serio *serio, struct serio_driver *drv)
{
struct mtouch *mtouch;
+ struct input_dev *input_dev;
int err;
- if (!(mtouch = kmalloc(sizeof(*mtouch), GFP_KERNEL)))
- return -ENOMEM;
-
- memset(mtouch, 0, sizeof(*mtouch));
-
- init_input_dev(&mtouch->dev);
- mtouch->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- mtouch->dev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
-
- input_set_abs_params(&mtouch->dev, ABS_X, MTOUCH_MIN_XC, MTOUCH_MAX_XC, 0, 0);
- input_set_abs_params(&mtouch->dev, ABS_Y, MTOUCH_MIN_YC, MTOUCH_MAX_YC, 0, 0);
+ mtouch = kzalloc(sizeof(struct mtouch), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!mtouch || !input_dev) {
+ err = -ENOMEM;
+ goto fail;
+ }
mtouch->serio = serio;
-
+ mtouch->dev = input_dev;
sprintf(mtouch->phys, "%s/input0", serio->phys);
- mtouch->dev.private = mtouch;
- mtouch->dev.name = mtouch_name;
- mtouch->dev.phys = mtouch->phys;
- mtouch->dev.id.bustype = BUS_RS232;
- mtouch->dev.id.vendor = SERIO_MICROTOUCH;
- mtouch->dev.id.product = 0;
- mtouch->dev.id.version = 0x0100;
+ input_dev->private = mtouch;
+ input_dev->name = "MicroTouch Serial TouchScreen";
+ input_dev->phys = mtouch->phys;
+ input_dev->id.bustype = BUS_RS232;
+ input_dev->id.vendor = SERIO_MICROTOUCH;
+ input_dev->id.product = 0;
+ input_dev->id.version = 0x0100;
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+ input_set_abs_params(mtouch->dev, ABS_X, MTOUCH_MIN_XC, MTOUCH_MAX_XC, 0, 0);
+ input_set_abs_params(mtouch->dev, ABS_Y, MTOUCH_MIN_YC, MTOUCH_MAX_YC, 0, 0);
serio_set_drvdata(serio, mtouch);
err = serio_open(serio, drv);
- if (err) {
- serio_set_drvdata(serio, NULL);
- kfree(mtouch);
- return err;
- }
+ if (err)
+ goto fail;
- input_register_device(&mtouch->dev);
-
- printk(KERN_INFO "input: %s on %s\n", mtouch->dev.name, serio->phys);
+ input_register_device(mtouch->dev);
return 0;
+
+ fail: serio_set_drvdata(serio, NULL);
+ input_free_device(input_dev);
+ kfree(mtouch);
+ return err;
}
/*