113 	unsigned int sem;  in mxs_dma_enable()  local
137 		sem = mxs_dma_read_semaphore(channel);  in mxs_dma_enable()
138 		if (sem == 0)  in mxs_dma_enable()
141 		if (sem == 1) {  in mxs_dma_enable()
456 	int sem;  in mxs_dma_finish()  local
468 	sem = mxs_dma_read_semaphore(channel);  in mxs_dma_finish()
469 	if (sem < 0)  in mxs_dma_finish()
470 		return sem;  in mxs_dma_finish()
472 	if (sem == pchan->active_num)  in mxs_dma_finish()
476 		if ((pchan->active_num) <= sem)  in mxs_dma_finish()
491 	if (sem == 0)  in mxs_dma_finish()