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-rw-r--r--keyboards/ergodox_ez/matrix.c14
1 files changed, 3 insertions, 11 deletions
diff --git a/keyboards/ergodox_ez/matrix.c b/keyboards/ergodox_ez/matrix.c
index f0550e9b88..e101711334 100644
--- a/keyboards/ergodox_ez/matrix.c
+++ b/keyboards/ergodox_ez/matrix.c
@@ -326,17 +326,9 @@ static matrix_row_t read_cols(uint8_t row)
*/
static void unselect_rows(void)
{
- // unselect on mcp23018
- if (mcp23018_status) { // if there was an error
- // do nothing
- } else {
- // set all rows hi-Z : 1
- mcp23018_status = i2c_start(I2C_ADDR_WRITE); if (mcp23018_status) goto out;
- mcp23018_status = i2c_write(GPIOA); if (mcp23018_status) goto out;
- mcp23018_status = i2c_write(0xFF); if (mcp23018_status) goto out;
- out:
- i2c_stop();
- }
+ // no need to unselect on mcp23018, because the select step sets all
+ // the other row bits high, and it's not changing to a different
+ // direction
// unselect on teensy
// Hi-Z(DDR:0, PORT:0) to unselect