From 71dc6bca4ef61d10f1327114ac1d53b6865a6030 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 27 Sep 2012 15:18:42 +0000 Subject: input: Allow key ghosting filter to be disabled Some keyboards will not need a key ghosting filter, so make this feature optional. Signed-off-by: Simon Glass --- include/key_matrix.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/key_matrix.h') diff --git a/include/key_matrix.h b/include/key_matrix.h index f41331407d..962971650e 100644 --- a/include/key_matrix.h +++ b/include/key_matrix.h @@ -40,6 +40,7 @@ struct key_matrix { const u8 *plain_keycode; /* key code for each row / column */ const u8 *fn_keycode; /* ...when Fn held down */ int fn_pos; /* position of Fn key in key (or -1) */ + int ghost_filter; /* non-zero to enable ghost filter */ }; /* Information about a particular key (row, column pair) in the matrix */ @@ -92,8 +93,10 @@ int key_matrix_decode_fdt(struct key_matrix *config, const void *blob, * @param config Keyboard matrix config * @param rows Number of rows in key matrix * @param cols Number of columns in key matrix + * @param ghost_filter Non-zero to enable ghost filtering * @return 0 if ok, -1 on error */ -int key_matrix_init(struct key_matrix *config, int rows, int cols); +int key_matrix_init(struct key_matrix *config, int rows, int cols, + int ghost_filter); #endif -- cgit v1.2.3