Input: atmel_mxt_ts - allow board code to specify IRQ flags

Different board have different requirements/setups so let's be more
flexible.

Signed-off-by: Iiro Valkonen <iiro.valkonen@atmel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

arch/arm/mach-s5pv210/mach-goni.c

@@ -25,6 +25,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 #include <linux/gpio.h>
+#include <linux/interrupt.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -231,6 +232,7 @@ static struct mxt_platform_data qt602240_platform_data = {
 	.threshold	= 0x28,
 	.voltage	= 2800000,              /* 2.8V */
 	.orient		= MXT_DIAGONAL,
+	.irqflags	= IRQF_TRIGGER_FALLING,
 };
 
 static struct s3c2410_platform_i2c i2c2_data __initdata = {

drivers/input/touchscreen/atmel_mxt_ts.c

@@ -1106,11 +1106,12 @@ static void mxt_input_close(struct input_dev *dev)
 static int __devinit mxt_probe(struct i2c_client *client,
 		const struct i2c_device_id *id)
 {
+	const struct mxt_platform_data *pdata = client->dev.platform_data;
 	struct mxt_data *data;
 	struct input_dev *input_dev;
 	int error;
 
-	if (!client->dev.platform_data)
+	if (!pdata)
 		return -EINVAL;
 
 	data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL);
@@ -1149,7 +1150,7 @@ static int __devinit mxt_probe(struct i2c_client *client,
 
 	data->client = client;
 	data->input_dev = input_dev;
-	data->pdata = client->dev.platform_data;
+	data->pdata = pdata;
 	data->irq = client->irq;
 
 	i2c_set_clientdata(client, data);
@@ -1159,7 +1160,7 @@ static int __devinit mxt_probe(struct i2c_client *client,
 		goto err_free_object;
 
 	error = request_threaded_irq(client->irq, NULL, mxt_interrupt,
-			IRQF_TRIGGER_FALLING, client->dev.driver->name, data);
+			pdata->irqflags, client->dev.driver->name, data);
 	if (error) {
 		dev_err(&client->dev, "Failed to register interrupt\n");
 		goto err_free_object;

include/linux/i2c/atmel_mxt_ts.h

@@ -38,6 +38,7 @@ struct mxt_platform_data {
 	unsigned int threshold;
 	unsigned int voltage;
 	unsigned char orient;
+	unsigned long irqflags;
 };
 
 #endif /* __LINUX_ATMEL_MXT_TS_H */