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.gasnier@st.com>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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