357 					struct i2c_msg *msgs)  in i2c_imx_dma_xfer()  argument
364 	dma->dma_buf = dma_map_single(chan_dev, msgs->buf,  in i2c_imx_dma_xfer()
659 					struct i2c_msg *msgs)  in i2c_imx_dma_write()  argument
671 	dma->dma_len = msgs->len - 1;  in i2c_imx_dma_write()
672 	result = i2c_imx_dma_xfer(i2c_imx, msgs);  in i2c_imx_dma_write()
684 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);  in i2c_imx_dma_write()
711 	imx_i2c_write_reg(msgs->buf[msgs->len-1],  in i2c_imx_dma_write()
721 			struct i2c_msg *msgs, bool is_lastmsg)  in i2c_imx_dma_read()  argument
735 	dma->dma_len = msgs->len - 2;  in i2c_imx_dma_read()
736 	result = i2c_imx_dma_xfer(i2c_imx, msgs);  in i2c_imx_dma_read()
770 	msgs->buf[msgs->len-2] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);  in i2c_imx_dma_read()
801 	msgs->buf[msgs->len-1] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);  in i2c_imx_dma_read()
806 static int i2c_imx_write(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs,  in i2c_imx_write()  argument
812 		__func__, i2c_8bit_addr_from_msg(msgs));  in i2c_imx_write()
815 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);  in i2c_imx_write()
825 	for (i = 0; i < msgs->len; i++) {  in i2c_imx_write()
828 			__func__, i, msgs->buf[i]);  in i2c_imx_write()
829 		imx_i2c_write_reg(msgs->buf[i], i2c_imx, IMX_I2C_I2DR);  in i2c_imx_write()
840 static int i2c_imx_read(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs,  in i2c_imx_read()  argument
845 	int block_data = msgs->flags & I2C_M_RECV_LEN;  in i2c_imx_read()
846 	int use_dma = i2c_imx->dma && msgs->flags & I2C_M_DMA_SAFE &&  in i2c_imx_read()
847 		msgs->len >= DMA_THRESHOLD && !block_data;  in i2c_imx_read()
851 		__func__, i2c_8bit_addr_from_msg(msgs));  in i2c_imx_read()
854 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);  in i2c_imx_read()
872 	if ((msgs->len - 1) || block_data)  in i2c_imx_read()
882 		return i2c_imx_dma_read(i2c_imx, msgs, is_lastmsg);  in i2c_imx_read()
885 	for (i = 0; i < msgs->len; i++) {  in i2c_imx_read()
903 			msgs->len += len;  in i2c_imx_read()
905 		if (i == (msgs->len - 1)) {  in i2c_imx_read()
932 		} else if (i == (msgs->len - 2)) {  in i2c_imx_read()
940 			msgs->buf[0] = len;  in i2c_imx_read()
942 			msgs->buf[i] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);  in i2c_imx_read()
945 			__func__, i, msgs->buf[i]);  in i2c_imx_read()
951 			       struct i2c_msg *msgs, int num, bool atomic)  in i2c_imx_xfer_common()  argument
1011 		if (msgs[i].flags & I2C_M_RD) {  in i2c_imx_xfer_common()
1012 			result = i2c_imx_read(i2c_imx, &msgs[i], is_lastmsg, atomic);  in i2c_imx_xfer_common()
1015 			    i2c_imx->dma && msgs[i].len >= DMA_THRESHOLD &&  in i2c_imx_xfer_common()
1016 				msgs[i].flags & I2C_M_DMA_SAFE)  in i2c_imx_xfer_common()
1017 				result = i2c_imx_dma_write(i2c_imx, &msgs[i]);  in i2c_imx_xfer_common()
1019 				result = i2c_imx_write(i2c_imx, &msgs[i], atomic);  in i2c_imx_xfer_common()
1036 			struct i2c_msg *msgs, int num)  in i2c_imx_xfer()  argument
1045 	result = i2c_imx_xfer_common(adapter, msgs, num, false);  in i2c_imx_xfer()
1054 			       struct i2c_msg *msgs, int num)  in i2c_imx_xfer_atomic()  argument
1063 	result = i2c_imx_xfer_common(adapter, msgs, num, true);  in i2c_imx_xfer_atomic()