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authorFabrice Gasnier <fabrice.gasnier@st.com>2018-05-18 17:24:03 +0200
committerLee Jones <lee.jones@linaro.org>2018-06-04 07:14:17 +0100
commitd95c9760d9c8e046b09b54a3bb6dd0c9aa7a0eff (patch)
treed250d277f3d9d23e2a01c1b714fe5440e499d392 /include/linux/mfd
parenta3b51be3cdac4844b2d8bb7c4dad95e191a05697 (diff)
mfd: stm32-timers: Fix pwm-stm32 linker issue with COMPILE_TEST
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>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/stm32-timers.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/mfd/stm32-timers.h b/include/linux/mfd/stm32-timers.h
index 9da1d7ece079..067d14655c28 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