leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

counter: stm32-lptimer-cnt: Provide defines for clock polarities

Browse Source 
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@foss.st.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/a111c8905c467805ca530728f88189b59430f27e.1630031207.git.vilhelm.gray@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
William Breathitt Gray 2021-08-27 12:47:45 +09:00 committed by Jonathan Cameron
parent 6880fa6c56
commit 05593a3fd1
2 changed files with 8 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/counter/stm32-lptimer-cnt.c
View File

@ -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,
};

5
include/linux/mfd/stm32-lptimer.h
View File

@ -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