[media] em28xx: Allow to compile it without RC/input support

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/em28xx/Kconfig

@@ -3,7 +3,6 @@ config VIDEO_EM28XX
 	depends on VIDEO_DEV && I2C
 	select VIDEO_TUNER
 	select VIDEO_TVEEPROM
-	depends on RC_CORE
 	select VIDEOBUF_VMALLOC
 	select VIDEO_SAA711X if VIDEO_HELPER_CHIPS_AUTO
 	select VIDEO_TVP5150 if VIDEO_HELPER_CHIPS_AUTO
@@ -44,3 +43,12 @@ config VIDEO_EM28XX_DVB
 	---help---
 	  This adds support for DVB cards based on the
 	  Empiatech em28xx chips.
+
+config VIDEO_EM28XX_RC
+        bool "EM28XX Remote Controller support"
+        depends on RC_CORE
+        depends on VIDEO_EM28XX
+        depends on !(RC_CORE=m && VIDEO_EM28XX=y)
+        default y
+        ---help---
+          Enables Remote Controller support on em28xx driver.

drivers/media/video/em28xx/Makefile

-em28xx-objs     := em28xx-video.o em28xx-i2c.o em28xx-cards.o em28xx-core.o \
-		   em28xx-input.o em28xx-vbi.o
+em28xx-y :=	em28xx-video.o em28xx-i2c.o em28xx-cards.o
+em28xx-y +=	em28xx-core.o  em28xx-vbi.o
+
+em28xx-$(CONFIG_VIDEO_EM28XX_RC) += em28xx-input.o
 
 em28xx-alsa-objs := em28xx-audio.o
 

drivers/media/video/em28xx/em28xx.h

@@ -697,6 +697,9 @@ int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 void em28xx_release_resources(struct em28xx *dev);
 
 /* Provided by em28xx-input.c */
+
+#ifdef CONFIG_VIDEO_EM28XX_RC
+
 int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
@@ -709,6 +712,20 @@ void em28xx_deregister_snapshot_button(struct em28xx *dev);
 int em28xx_ir_init(struct em28xx *dev);
 int em28xx_ir_fini(struct em28xx *dev);
 
+#else
+
+#define em28xx_get_key_terratec			NULL
+#define em28xx_get_key_em_haup			NULL
+#define em28xx_get_key_pinnacle_usb_grey	NULL
+#define em28xx_get_key_winfast_usbii_deluxe	NULL
+
+static inline void em28xx_register_snapshot_button(struct em28xx *dev) {}
+static inline void em28xx_deregister_snapshot_button(struct em28xx *dev) {}
+static inline int em28xx_ir_init(struct em28xx *dev) { return 0; }
+static inline int em28xx_ir_fini(struct em28xx *dev) { return 0; }
+
+#endif
+
 /* Provided by em28xx-vbi.c */
 extern struct videobuf_queue_ops em28xx_vbi_qops;