[media] media: gpio-ir-recv: add map name

Make it possible for gpio-ir-recv users to choose a map name.

Cc: Ravi Kumar V <kumarrav@codeaurora.org>
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/rc/gpio-ir-recv.c

@@ -93,7 +93,7 @@ static int __devinit gpio_ir_recv_probe(struct platform_device *pdev)
 	rcdev->input_id.version = 0x0100;
 	rcdev->dev.parent = &pdev->dev;
 	rcdev->driver_name = GPIO_IR_DRIVER_NAME;
-	rcdev->map_name = RC_MAP_EMPTY;
+	rcdev->map_name = pdata->map_name ?: RC_MAP_EMPTY;
 
 	gpio_dev->rcdev = rcdev;
 	gpio_dev->gpio_nr = pdata->gpio_nr;

include/media/gpio-ir-recv.h

@@ -16,6 +16,7 @@
 struct gpio_ir_recv_platform_data {
 	int gpio_nr;
 	bool active_low;
+	const char *map_name;
 };
 
 #endif /* __GPIO_IR_RECV_H__ */