linux-kernel - Re: [PATCH] misc: atmel_pwm: only build for supported platforms

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Date:	Fri, 9 May 2014 12:03:54 +0200
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Arnd Bergmann <arnd@...db.de>,
	<linux-arm-kernel@...ts.infradead.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	<linux-kernel@...r.kernel.org>
Subject: Re: [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@...db.de>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

Acked-by: Nicolas Ferre <nicolas.ferre@...el.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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