On Tue, Aug 15, 2017 at 04:47:47PM +0200, Arnd Bergmann wrote:
> With CONFIG_THERMAL=m, a built-in aspeed pwm tacho driver causes
> a link error:
>
> drivers/hwmon/aspeed-pwm-tacho.o: In function `aspeed_pwm_tacho_probe':
> aspeed-pwm-tacho.c:(.text+0x7f0): undefined reference to `thermal_of_cooling_device_register'
>
> This adds a dependency similar to what other hwmon drivers use,
> ensuring that the aspeed driver cannot be built-in in this
> case but has to be a module. With THERMAL=n, we still allow building it.
>
> Fixes: 2d7a548a3eff ("drivers: hwmon: Support for ASPEED PWM/Fan tach")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Applied to hwmon-next.
Thanks,
Guenter
> ---
> drivers/hwmon/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
> index 5ef2814345ef..5b9a61f766ac 100644
> --- a/drivers/hwmon/Kconfig
> +++ b/drivers/hwmon/Kconfig
> @@ -343,6 +343,7 @@ config SENSORS_ASB100
>
> config SENSORS_ASPEED
> tristate "ASPEED AST2400/AST2500 PWM and Fan tach driver"
> + depends on THERMAL || THERMAL=n
> select REGMAP
> help
> This driver provides support for ASPEED AST2400/AST2500 PWM
> --
> 2.9.0
>
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