Make debounce() signal changes in the cooked matrix as return value (#17554)

1 files changed, 6 insertions, 1 deletions

diff --git a/quantum/debounce/sym_eager_pk.c b/quantum/debounce/sym_eager_pk.c
index fe3e88bb06..f736d1645c 100644
--- a/quantum/debounce/sym_eager_pk.c
+++ b/quantum/debounce/sym_eager_pk.c
@@ -49,6 +49,7 @@ static debounce_counter_t *debounce_counters;
 static fast_timer_t        last_time;
 static bool                counters_need_update;
 static bool                matrix_need_update;
+static bool                cooked_changed;
 
 #    define DEBOUNCE_ELAPSED 0
 
@@ -71,8 +72,9 @@ void debounce_free(void) {
     debounce_counters = NULL;
 }
 
-void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) {
+bool debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool changed) {
     bool updated_last = false;
+    cooked_changed    = false;
 
     if (counters_need_update) {
         fast_timer_t now          = timer_read_fast();
@@ -96,6 +98,8 @@ void debounce(matrix_row_t raw[], matrix_row_t cooked[], uint8_t num_rows, bool
 
         transfer_matrix_values(raw, cooked, num_rows);
     }
+
+    return cooked_changed;
 }
 
 // If the current time is > debounce counter, set the counter to enable input.
@@ -132,6 +136,7 @@ static void transfer_matrix_values(matrix_row_t raw[], matrix_row_t cooked[], ui
                     *debounce_pointer    = DEBOUNCE;
                     counters_need_update = true;
                     existing_row ^= col_mask; // flip the bit.
+                    cooked_changed = true;
                 }
             }
             debounce_pointer++;