Lines Matching refs:btx
269 struct qup_i2c_bam btx; member
613 if (qup->btx.dma) in qup_i2c_rel_dma()
614 dma_release_channel(qup->btx.dma); in qup_i2c_rel_dma()
617 qup->btx.dma = NULL; in qup_i2c_rel_dma()
625 if (!qup->btx.dma) { in qup_i2c_req_dma()
626 qup->btx.dma = dma_request_chan(qup->dev, "tx"); in qup_i2c_req_dma()
627 if (IS_ERR(qup->btx.dma)) { in qup_i2c_req_dma()
628 err = PTR_ERR(qup->btx.dma); in qup_i2c_req_dma()
629 qup->btx.dma = NULL; in qup_i2c_req_dma()
686 ret = qup_sg_set_buf(&qup->btx.sg[qup->btx.sg_cnt++], in qup_i2c_bam_make_desc()
700 ret = qup_sg_set_buf(&qup->btx.sg[qup->btx.sg_cnt++], in qup_i2c_bam_make_desc()
707 ret = qup_sg_set_buf(&qup->btx.sg[qup->btx.sg_cnt++], in qup_i2c_bam_make_desc()
728 u32 tx_cnt = qup->btx.sg_cnt, rx_cnt = qup->brx.sg_cnt; in qup_i2c_bam_schedule_desc()
733 qup->btx.tag.start[0] = QUP_BAM_INPUT_EOT; in qup_i2c_bam_schedule_desc()
744 qup->btx.tag.start[len - 1] = QUP_BAM_FLUSH_STOP; in qup_i2c_bam_schedule_desc()
745 ret = qup_sg_set_buf(&qup->btx.sg[tx_cnt++], &qup->btx.tag.start[0], in qup_i2c_bam_schedule_desc()
750 txd = dmaengine_prep_slave_sg(qup->btx.dma, qup->btx.sg, tx_cnt, in qup_i2c_bam_schedule_desc()
770 dma_async_issue_pending(qup->btx.dma); in qup_i2c_bam_schedule_desc()
781 dmaengine_terminate_sync(qup->btx.dma); in qup_i2c_bam_schedule_desc()
820 dma_unmap_sg(qup->dev, qup->btx.sg, tx_cnt, DMA_TO_DEVICE); in qup_i2c_bam_schedule_desc()
831 qup->btx.sg_cnt = 0; in qup_i2c_bam_clear_tag_buffers()
881 if (qup->btx.sg_cnt > qup->max_xfer_sg_len || in qup_i2c_bam_xfer()
1708 qup->btx.sg = devm_kcalloc(&pdev->dev, in qup_i2c_probe()
1709 blocks, sizeof(*qup->btx.sg), in qup_i2c_probe()
1711 if (!qup->btx.sg) { in qup_i2c_probe()
1715 sg_init_table(qup->btx.sg, blocks); in qup_i2c_probe()
1742 qup->btx.tag.start = devm_kzalloc(&pdev->dev, 2, GFP_KERNEL); in qup_i2c_probe()
1743 if (!qup->btx.tag.start) { in qup_i2c_probe()
1900 if (qup->btx.dma) in qup_i2c_probe()
1901 dma_release_channel(qup->btx.dma); in qup_i2c_probe()
1912 dma_release_channel(qup->btx.dma); in qup_i2c_remove()