MAX_MATRIX_KEY_NUM   42 drivers/input/keyboard/imx_keypad.c #define MAX_MATRIX_KEY_NUM	(MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS)
MAX_MATRIX_KEY_NUM   93 drivers/input/keyboard/pxa27x_keypad.c #define MAX_MATRIX_KEY_NUM	(MAX_MATRIX_KEY_ROWS * MAX_MATRIX_KEY_COLS)