Kconfig, include/debug.h, and drivers/contactless: Add debug macros for contactless. The various contactless device drivers currently define device specific debug macros within their local header files. This patch adds generic ctls[info|warn|err] macros for the overall contactless subsystem to be used in future drivers. Ported the two currently available contactless device drivers (mfrc522.c and pn532.c) to these generic logging macros and fixed some logging bugs

along the way.

Kconfig

@@ -598,6 +598,41 @@ config DEBUG_BINFMT_INFO
 
 endif # DEBUG_BINFMT
 
+config DEBUG_CONTACTLESS
+	bool "Contactless Debug Features"
+	default n
+	depends on DRIVERS_CONTACTLESS
+	---help---
+		Enable debug features for contactless (aka RFID) subsystem.
+
+if DEBUG_CONTACTLESS
+
+config DEBUG_CONTACTLESS_ERROR
+	bool "Contactless Error Output"
+	default n
+	depends on DEBUG_ERROR
+	---help---
+		Enable contactless (aka RFID) subsystem error output to
+		SYSLOG.
+
+config DEBUG_CONTACTLESS_WARN
+	bool "Contactless Warnings Output"
+	default n
+	depends on DEBUG_ERROR
+	---help---
+		Enable contactless (aka RFID) subsystem warning output to
+		SYSLOG.
+
+config DEBUG_CONTACTLESS_INFO
+	bool "Contactless Informational Output"
+	default n
+	depends on DEBUG_ERROR
+	---help---
+		Enable contactless (aka RFID) subsystem informational output
+		to SYSLOG.
+
+endif # DEBUG_CONTACTLESS
+
 config DEBUG_CRYPTO
 	bool "Crypto Debug Features"
 	default n