This is a note to let you know that I've just added the patch titled
counter: stm32-lptimer-cnt: Provide defines for clock polarities
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
counter-stm32-lptimer-cnt-provide-defines-for-clock-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit aca6587cb39769b1b426523432538fe1a9d6596e
Author: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
Date: Fri Aug 27 12:47:45 2021 +0900
counter: stm32-lptimer-cnt: Provide defines for clock polarities
[ Upstream commit 05593a3fd1037b5fee85d3c8c28112f19e7baa06 ]
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>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/a111c8905c467805ca530728f88189b59430f27e.1630031207.git.vilhelm.gray@xxxxxxxxx
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Stable-dep-of: 00f4bc5184c1 ("counter: 104-quad-8: Fix Synapse action reported for Index signals")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/counter/stm32-lptimer-cnt.c b/drivers/counter/stm32-lptimer-cnt.c
index fa7f86cf0ea32..a56fbe598e119 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 90b20550c1c8b..06d3f11dc3c9f 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
