The STM32 low-power timer permits configuration of the clock polarity
via the LPTIMX_CFGR register CKPOL bits. This patch provides
preprocessor defines for the supported clock polarities.
Cc: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
Signed-off-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
---
drivers/counter/stm32-lptimer-cnt.c | 6 +++---
include/linux/mfd/stm32-lptimer.h | 5 +++++
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/counter/stm32-lptimer-cnt.c b/drivers/counter/stm32-lptimer-cnt.c
index 13656957c45f..7367f46c6f91 100644
--- a/drivers/counter/stm32-lptimer-cnt.c
+++ b/drivers/counter/stm32-lptimer-cnt.c
@@ -140,9 +140,9 @@ static const enum counter_function stm32_lptim_cnt_functions[] = {
};
enum stm32_lptim_synapse_action {
- STM32_LPTIM_SYNAPSE_ACTION_RISING_EDGE,
- STM32_LPTIM_SYNAPSE_ACTION_FALLING_EDGE,
- STM32_LPTIM_SYNAPSE_ACTION_BOTH_EDGES,
+ STM32_LPTIM_SYNAPSE_ACTION_RISING_EDGE = STM32_LPTIM_CKPOL_RISING_EDGE,
+ STM32_LPTIM_SYNAPSE_ACTION_FALLING_EDGE = STM32_LPTIM_CKPOL_FALLING_EDGE,
+ STM32_LPTIM_SYNAPSE_ACTION_BOTH_EDGES = STM32_LPTIM_CKPOL_BOTH_EDGES,
STM32_LPTIM_SYNAPSE_ACTION_NONE,
};
diff --git a/include/linux/mfd/stm32-lptimer.h b/include/linux/mfd/stm32-lptimer.h
index 90b20550c1c8..06d3f11dc3c9 100644
--- a/include/linux/mfd/stm32-lptimer.h
+++ b/include/linux/mfd/stm32-lptimer.h
@@ -45,6 +45,11 @@
#define STM32_LPTIM_PRESC GENMASK(11, 9)
#define STM32_LPTIM_CKPOL GENMASK(2, 1)
+/* STM32_LPTIM_CKPOL */
+#define STM32_LPTIM_CKPOL_RISING_EDGE 0
+#define STM32_LPTIM_CKPOL_FALLING_EDGE 1
+#define STM32_LPTIM_CKPOL_BOTH_EDGES 2
+
/* STM32_LPTIM_ARR */
#define STM32_LPTIM_MAX_ARR 0xFFFF
--
2.32.0
