V4L/DVB: tm6000: add tuner callback for dvb frontend

Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/staging/tm6000/tm6000-cards.c

@@ -244,7 +244,7 @@ struct usb_device_id tm6000_id_table [] = {
 
 /* Tuner callback to provide the proper gpio changes needed for xc2028 */
 
-static int tm6000_tuner_callback(void *ptr, int component, int command, int arg)
+int tm6000_tuner_callback(void *ptr, int component, int command, int arg)
 {
 	int rc=0;
 	struct tm6000_core *dev = ptr;

drivers/staging/tm6000/tm6000-dvb.c

@@ -236,6 +236,7 @@ int tm6000_dvb_register(struct tm6000_core *dev)
 			.i2c_addr = dev->tuner_addr,
 		};
 
+		dvb->frontend->callback = tm6000_tuner_callback;
 		ret = dvb_register_frontend(&dvb->adapter, dvb->frontend);
 		if (ret < 0) {
 			printk(KERN_ERR

drivers/staging/tm6000/tm6000.h

@@ -203,6 +203,9 @@ struct tm6000_fh {
 			V4L2_STD_PAL_M|V4L2_STD_PAL_60|V4L2_STD_NTSC_M| \
 			V4L2_STD_NTSC_M_JP|V4L2_STD_SECAM
 
+/* In tm6000-cards.c */
+
+int tm6000_tuner_callback (void *ptr, int component, int command, int arg);
 /* In tm6000-core.c */
 
 int tm6000_read_write_usb (struct tm6000_core *dev, u8 reqtype, u8 req,