IS_ST_BLOCK_CMD_CLEARED
clear_bit(IS_ST_BLOCK_CMD_CLEARED, &is->state);
ret = fimc_is_wait_event(is, IS_ST_BLOCK_CMD_CLEARED, 1,
set_bit(IS_ST_BLOCK_CMD_CLEARED, &is->state);
set_bit(IS_ST_BLOCK_CMD_CLEARED, &is->state);