[PATCH] misc: atmel_pwm: only build for supported platforms

Arnd Bergmann
2014-05-08T14:56:28Z

There is architecture code in mach-at91 that depends on the
CONFIG_ATMEL_PWM symbol in order to call the soc-specific
at91_add_device_pwm function. While all of this is about code
that will be removed in the future, using DT probing and
the PWM framework, we currently get a build failure:

arch/arm/mach-at91/built-in.o: In function `at91_pwm_leds':
arch/arm/mach-at91/leds.c:88: undefined reference to `at91_add_device_pwm'

This patch ensures we only try to build this driver on
platforms on which it will build and work.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/misc/Kconfig | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index fe2230c..ce29342 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -53,7 +53,8 @@ config AD525X_DPOT_SPI

config ATMEL_PWM
tristate "Atmel AT32/AT91 PWM support"
- depends on HAVE_CLK && (AVR32 || ARCH_AT91 || COMPILE_TEST)
+ depends on HAVE_CLK
+ depends on AVR32 || AT91SAM9263 || AT91SAM9RL || AT91SAM9G45
help
This option enables device driver support for the PWM channels
on certain Atmel processors. Pulse Width Modulation is used for
--
1.8.3.2