On 05/18/2018 08:24 AM, Fabrice Gasnier wrote:
> This is seen when COMPILE_TEST=y and MFD_STM32_TIMERS=n.
> drivers/pwm/pwm-stm32.o: In function 'stm32_pwm_raw_capture':
> pwm-stm32.c:... undefined reference to 'stm32_timers_dma_burst_read'
> Fixes: 0c6609805b63 ("mfd: stm32-timers: Add support for DMAs")
>
> Signed-off-by: Fabrice Gasnier <fabrice.gasn...@st.com>
Reported-by: Randy Dunlap <rdun...@infradead.org>
Tested-by: Randy Dunlap <rdun...@infradead.org>
Thanks.
> ---
> include/linux/mfd/stm32-timers.h | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/include/linux/mfd/stm32-timers.h
> b/include/linux/mfd/stm32-timers.h
> index 9da1d7e..067d146 100644
> --- a/include/linux/mfd/stm32-timers.h
> +++ b/include/linux/mfd/stm32-timers.h
> @@ -124,8 +124,20 @@ struct stm32_timers {
> struct stm32_timers_dma dma; /* Only to be used by the parent */
> };
>
> +#if IS_REACHABLE(CONFIG_MFD_STM32_TIMERS)
> int stm32_timers_dma_burst_read(struct device *dev, u32 *buf,
> enum stm32_timers_dmas id, u32 reg,
> unsigned int num_reg, unsigned int bursts,
> unsigned long tmo_ms);
> +#else
> +static inline int stm32_timers_dma_burst_read(struct device *dev, u32 *buf,
> + enum stm32_timers_dmas id,
> + u32 reg,
> + unsigned int num_reg,
> + unsigned int bursts,
> + unsigned long tmo_ms)
> +{
> + return -ENODEV;
> +}
> +#endif
> #endif
>
--
~Randy
