kconfig: syntax cleanup - drop support for "depends/requires/def_boolean"

Remove the following redundant and never or rarely used kconfig syntax:

- "def_boolean" (same as "def_bool")
- "requires" (same as "depends on")
- "depends" (same as "depends on")

This patch contains the code changes and Kconfig updates.
The shipped files are in next patch to let actual codechange stand out.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Cc: Bryan Wu <bryan.wu@analog.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

arch/blackfin/Kconfig

@@ -758,7 +758,7 @@ config BFIN_DMA_5XX
 choice
 	prompt "Uncached SDRAM region"
 	default DMA_UNCACHED_1M
-	depends BFIN_DMA_5XX
+	depends on BFIN_DMA_5XX
 config DMA_UNCACHED_2M
 	bool "Enable 2M DMA region"
 config DMA_UNCACHED_1M

arch/powerpc/Kconfig.debug

@@ -144,7 +144,7 @@ config BDI_SWITCH
 
 config BOOTX_TEXT
 	bool "Support for early boot text console (BootX or OpenFirmware only)"
-	depends PPC_OF && PPC_MULTIPLATFORM
+	depends on PPC_OF && PPC_MULTIPLATFORM
 	help
 	  Say Y here to see progress messages from the boot firmware in text
 	  mode. Requires either BootX or Open Firmware.
@@ -234,12 +234,12 @@ endchoice
 
 config PPC_EARLY_DEBUG_44x_PHYSLOW
 	hex "Low 32 bits of early debug UART physical address"
-	depends PPC_EARLY_DEBUG_44x
+	depends on PPC_EARLY_DEBUG_44x
 	default "0x40000200"
 
 config PPC_EARLY_DEBUG_44x_PHYSHIGH
 	hex "EPRN of early debug UART physical address"
-	depends PPC_EARLY_DEBUG_44x
+	depends on PPC_EARLY_DEBUG_44x
 	default "0x1"
 
 config PPC_EARLY_DEBUG_CPM_ADDR

arch/powerpc/platforms/Kconfig

@@ -117,7 +117,7 @@ config RTAS_FLASH
 
 config PPC_PMI
 	tristate "Support for PMI"
-	depends PPC_IBM_CELL_BLADE
+	depends on PPC_IBM_CELL_BLADE
 	help
 	  PMI (Platform Management Interrupt) is a way to
 	  communicate with the BMC (Baseboard Mangement Controller).

drivers/input/misc/Kconfig

@@ -152,7 +152,7 @@ config INPUT_POWERMATE
 
 config INPUT_YEALINK
 	tristate "Yealink usb-p1k voip phone"
-	depends EXPERIMENTAL
+	depends on EXPERIMENTAL
 	depends on USB_ARCH_HAS_HCD
 	select USB
 	help

drivers/leds/Kconfig

@@ -83,7 +83,7 @@ config LEDS_WRAP
 
 config LEDS_H1940
 	tristate "LED Support for iPAQ H1940 device"
-	depends LEDS_CLASS && ARCH_H1940
+	depends on LEDS_CLASS && ARCH_H1940
 	help
 	  This option enables support for the LEDs on the h1940.
 

drivers/telephony/Kconfig

@@ -19,7 +19,7 @@ if PHONE
 
 config PHONE_IXJ
 	tristate "QuickNet Internet LineJack/PhoneJack support"
-	depends ISA || PCI
+	depends on ISA || PCI
 	---help---
 	  Say M if you have a telephony card manufactured by Quicknet
 	  Technologies, Inc.  These include the Internet PhoneJACK and

scripts/kconfig/zconf.gperf

@@ -23,7 +23,6 @@ help,		T_HELP,		TF_COMMAND
 if,		T_IF,		TF_COMMAND|TF_PARAM
 endif,		T_ENDIF,	TF_COMMAND
 depends,	T_DEPENDS,	TF_COMMAND
-requires,	T_REQUIRES,	TF_COMMAND
 optional,	T_OPTIONAL,	TF_COMMAND
 default,	T_DEFAULT,	TF_COMMAND, S_UNKNOWN
 prompt,		T_PROMPT,	TF_COMMAND
@@ -32,7 +31,6 @@ def_tristate,	T_DEFAULT,	TF_COMMAND, S_TRISTATE
 bool,		T_TYPE,		TF_COMMAND, S_BOOLEAN
 boolean,	T_TYPE,		TF_COMMAND, S_BOOLEAN
 def_bool,	T_DEFAULT,	TF_COMMAND, S_BOOLEAN
-def_boolean,	T_DEFAULT,	TF_COMMAND, S_BOOLEAN
 int,		T_TYPE,		TF_COMMAND, S_INT
 hex,		T_TYPE,		TF_COMMAND, S_HEX
 string,		T_TYPE,		TF_COMMAND, S_STRING

scripts/kconfig/zconf.y

@@ -64,7 +64,6 @@ static struct menu *current_menu, *current_entry;
 %token <id>T_IF
 %token <id>T_ENDIF
 %token <id>T_DEPENDS
-%token <id>T_REQUIRES
 %token <id>T_OPTIONAL
 %token <id>T_PROMPT
 %token <id>T_TYPE
@@ -418,16 +417,6 @@ depends: T_DEPENDS T_ON expr T_EOL
 {
 	menu_add_dep($3);
 	printd(DEBUG_PARSE, "%s:%d:depends on\n", zconf_curname(), zconf_lineno());
-}
-	| T_DEPENDS expr T_EOL
-{
-	menu_add_dep($2);
-	printd(DEBUG_PARSE, "%s:%d:depends\n", zconf_curname(), zconf_lineno());
-}
-	| T_REQUIRES expr T_EOL
-{
-	menu_add_dep($2);
-	printd(DEBUG_PARSE, "%s:%d:requires\n", zconf_curname(), zconf_lineno());
 };
 
 /* prompt statement */