AT91: atmel_pwm only available for certain AT91 processors

Only three of Atmel's AT91 processors (SAM9263, SAM9RL and CAP9) include a
PWM controller.

It should therefore only be possible to enable the misc/atmel_pwm.c driver
on those processors (and not all AT91 processors).

Signed-off-by: Andrew Victor <[email protected]>
Cc: Haavard Skinnemoen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: avictor

drivers/misc/Kconfig

@@ -15,7 +15,7 @@ if MISC_DEVICES
 
 config ATMEL_PWM
 	tristate "Atmel AT32/AT91 PWM support"
-	depends on AVR32 || ARCH_AT91
+	depends on AVR32 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9
 	help
 	  This option enables device driver support for the PWM channels
 	  on certain Atmel prcoessors.  Pulse Width Modulation is used for