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    SubjectRe: [PATCH] misc: atmel_pwm: only build for supported platforms
    On 08/05/2014 16:56, Arnd Bergmann :
    > 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>

    Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

    Thanks,

    > ---
    > 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
    >


    --
    Nicolas Ferre


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