Cosmetic fixes to RTC subsystem's Kconfig

Add adds a warning if a potentially conflicting RTC option has been
selected and makes some other cosmetic fixes to the Kconfig.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/Kconfig

@@ -20,6 +20,10 @@ menuconfig RTC_CLASS
 
 if RTC_CLASS
 
+if GEN_RTC || RTC
+comment "Conflicting RTC option has been selected, check GEN_RTC and RTC"
+endif
+
 config RTC_HCTOSYS
 	bool "Set system time from RTC on startup and resume"
 	depends on RTC_CLASS = y
@@ -49,7 +53,7 @@ config RTC_HCTOSYS_DEVICE
 
 	  If the clock you specify here is not battery backed, it may still
 	  be useful to reinitialize system time when resuming from system
-	  sleep states.  Do not specify an RTC here unless it stays powered
+	  sleep states. Do not specify an RTC here unless it stays powered
 	  during all this system's supported sleep states.
 
 config RTC_DEBUG
@@ -142,7 +146,7 @@ config RTC_DRV_DS1307
 	  will be called rtc-ds1307.
 
 config RTC_DRV_DS1374
-	tristate "Maxim/Dallas Semiconductor DS1374 Real Time Clock"
+	tristate "Dallas/Maxim DS1374"
 	depends on RTC_CLASS && I2C
 	help
 	  If you say yes here you get support for Dallas Semiconductor
@@ -162,7 +166,7 @@ config RTC_DRV_DS1672
 	  will be called rtc-ds1672.
 
 config RTC_DRV_MAX6900
-	tristate "Maxim 6900"
+	tristate "Maxim MAX6900"
 	help
 	  If you say yes here you will get support for the
 	  Maxim MAX6900 I2C RTC chip.
@@ -180,10 +184,10 @@ config RTC_DRV_RS5C372
 	  will be called rtc-rs5c372.
 
 config RTC_DRV_ISL1208
-	tristate "Intersil 1208"
+	tristate "Intersil ISL1208"
 	help
 	  If you say yes here you get support for the
-	  Intersil 1208 RTC chip.
+	  Intersil ISL1208 RTC chip.
 
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-isl1208.
@@ -220,7 +224,7 @@ config RTC_DRV_PCF8583
 	  will be called rtc-pcf8583.
 
 config RTC_DRV_M41T80
-	tristate "ST M41T80 series RTC"
+	tristate "ST M41T80/81/82/83/84/85/87"
 	help
 	  If you say Y here you will get support for the
 	  ST M41T80 RTC chips series. Currently following chips are
@@ -252,6 +256,15 @@ comment "SPI RTC drivers"
 
 if SPI_MASTER
 
+config RTC_DRV_MAX6902
+	tristate "Maxim MAX6902"
+	help
+	  If you say yes here you will get support for the
+	  Maxim MAX6902 SPI RTC chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-max6902.
+
 config RTC_DRV_RS5C348
 	tristate "Ricoh RS5C348A/B"
 	help
@@ -261,15 +274,6 @@ config RTC_DRV_RS5C348
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-rs5c348.
 
-config RTC_DRV_MAX6902
-	tristate "Maxim 6902"
-	help
-	  If you say yes here you will get support for the
-	  Maxim MAX6902 SPI RTC chip.
-
-	  This driver can also be built as a module. If so, the module
-	  will be called rtc-max6902.
-
 endif # SPI_MASTER
 
 comment "Platform RTC drivers"
@@ -303,14 +307,23 @@ config RTC_DRV_DS1216
 	  If you say yes here you get support for the Dallas DS1216 RTC chips.
 
 config RTC_DRV_DS1553
-	tristate "Dallas DS1553"
+	tristate "Maxim/Dallas DS1553"
 	help
 	  If you say yes here you get support for the
-	  Dallas DS1553 timekeeping chip.
+	  Maxim/Dallas DS1553 timekeeping chip.
 
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-ds1553.
 
+config RTC_DRV_DS1742
+	tristate "Maxim/Dallas DS1742/1743"
+	help
+	  If you say yes here you get support for the
+	  Maxim/Dallas DS1742/1743 timekeeping chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-ds1742.
+
 config RTC_DRV_STK17TA8
 	tristate "Simtek STK17TA8"
 	depends on RTC_CLASS
@@ -321,15 +334,6 @@ config RTC_DRV_STK17TA8
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-stk17ta8.
 
-config RTC_DRV_DS1742
-	tristate "Dallas DS1742/1743"
-	help
-	  If you say yes here you get support for the
-	  Dallas DS1742/1743 timekeeping chip.
-
-	  This driver can also be built as a module. If so, the module
-	  will be called rtc-ds1742.
-
 config RTC_DRV_M48T86
 	tristate "ST M48T86/Dallas DS12887"
 	help