[media] siano: allow compiling it without RC support

Remote controller support should be optional on all drivers.

Make it optional at Siano's driver.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/common/Kconfig

+# Used by common drivers, when they need to ask questions
+config MEDIA_COMMON_OPTIONS
+	bool
+
+comment "common driver options"
+	depends on MEDIA_COMMON_OPTIONS
+
 source "drivers/media/common/b2c2/Kconfig"
 source "drivers/media/common/saa7146/Kconfig"
 source "drivers/media/common/siano/Kconfig"

drivers/media/common/siano/Kconfig

@@ -4,7 +4,7 @@
 
 config SMS_SIANO_MDTV
 	tristate
-	depends on DVB_CORE && RC_CORE && HAS_DMA
+	depends on DVB_CORE && HAS_DMA
 	depends on SMS_USB_DRV || SMS_SDIO_DRV
 	default y
 	---help---
@@ -15,3 +15,11 @@ config SMS_SIANO_MDTV
 
 	  Further documentation on this driver can be found on the WWW
 	  at http://www.siano-ms.com/
+config SMS_SIANO_RC
+	bool "Enable Remote Controller support for Siano devices"
+	depends on SMS_SIANO_MDTV && RC_CORE
+	depends on SMS_USB_DRV || SMS_SDIO_DRV
+	depends on MEDIA_COMMON_OPTIONS
+	default y
+	---help---
+	  Choose Y to select Remote Controller support for Siano driver.

drivers/media/common/siano/Makefile

-smsmdtv-objs := smscoreapi.o sms-cards.o smsendian.o smsir.o
+smsmdtv-objs := smscoreapi.o sms-cards.o smsendian.o
 
 obj-$(CONFIG_SMS_SIANO_MDTV) += smsmdtv.o smsdvb.o
+obj-$(CONFIG_SMS_SIANO_RC) += smsir.o
 
 ccflags-y += -Idrivers/media/dvb-core
 ccflags-y += $(extra-cflags-y) $(extra-cflags-m)

drivers/media/common/siano/smsir.h

@@ -46,10 +46,19 @@ struct ir_t {
 	u32 controller;
 };
 
+#ifdef CONFIG_SMS_SIANO_RC
 int sms_ir_init(struct smscore_device_t *coredev);
 void sms_ir_exit(struct smscore_device_t *coredev);
 void sms_ir_event(struct smscore_device_t *coredev,
 			const char *buf, int len);
+#else
+inline static int sms_ir_init(struct smscore_device_t *coredev) {
+	return 0;
+}
+inline static void sms_ir_exit(struct smscore_device_t *coredev) {};
+inline static void sms_ir_event(struct smscore_device_t *coredev,
+			const char *buf, int len) {};
+#endif
 
 #endif /* __SMS_IR_H__ */
 

drivers/media/mmc/siano/Kconfig

@@ -6,5 +6,6 @@ config SMS_SDIO_DRV
 	tristate "Siano SMS1xxx based MDTV via SDIO interface"
 	depends on DVB_CORE && RC_CORE && HAS_DMA
 	depends on MMC
+	select MEDIA_COMMON_OPTIONS
 	---help---
 	  Choose if you would like to have Siano's support for SDIO interface

drivers/media/usb/siano/Kconfig

@@ -5,6 +5,7 @@
 config SMS_USB_DRV
 	tristate "Siano SMS1xxx based MDTV receiver"
 	depends on DVB_CORE && RC_CORE && HAS_DMA
+	select MEDIA_COMMON_OPTIONS
 	---help---
 	  Choose if you would like to have Siano's support for USB interface