Some Quadrature Encoders can swap phase inputs A and B
internally. This new function will allow drivers to configure input
swap mode.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/counter/counter.c | 3 ++-
include/linux/counter.h | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/counter/counter.c b/drivers/counter/counter.c
index 106bc7180cd8..b818ae9e85f2 100644
--- a/drivers/counter/counter.c
+++ b/drivers/counter/counter.c
@@ -823,7 +823,8 @@ static const char *const counter_count_function_str[] = {
[COUNTER_COUNT_FUNCTION_QUADRATURE_X1_B] = "quadrature x1 b",
[COUNTER_COUNT_FUNCTION_QUADRATURE_X2_A] = "quadrature x2 a",
[COUNTER_COUNT_FUNCTION_QUADRATURE_X2_B] = "quadrature x2 b",
- [COUNTER_COUNT_FUNCTION_QUADRATURE_X4] = "quadrature x4"
+ [COUNTER_COUNT_FUNCTION_QUADRATURE_X4] = "quadrature x4",
+ [COUNTER_COUNT_FUNCTION_QUADRATURE_X4_SWAPPED] = "quadrature x4 swapped"
};
static ssize_t counter_function_show(struct device *dev,
diff --git a/include/linux/counter.h b/include/linux/counter.h
index a061cdcdef7c..860769250f89 100644
--- a/include/linux/counter.h
+++ b/include/linux/counter.h
@@ -170,7 +170,8 @@ enum counter_count_function {
COUNTER_COUNT_FUNCTION_QUADRATURE_X1_B,
COUNTER_COUNT_FUNCTION_QUADRATURE_X2_A,
COUNTER_COUNT_FUNCTION_QUADRATURE_X2_B,
- COUNTER_COUNT_FUNCTION_QUADRATURE_X4
+ COUNTER_COUNT_FUNCTION_QUADRATURE_X4,
+ COUNTER_COUNT_FUNCTION_QUADRATURE_X4_SWAPPED,
};
/**
--
2.23.0
