i2c/busses/i2c-imx.c

478 					struct i2c_msg *msgs)
485 	dma->dma_buf = dma_map_single(chan_dev, msgs->buf,
1153 					struct i2c_msg *msgs)
1167 	dma->dma_len = msgs->len - 1;
1168 	result = i2c_imx_dma_xfer(i2c_imx, msgs);
1180 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);
1207 	imx_i2c_write_reg(msgs->buf[msgs->len-1],
1217 				struct i2c_msg *msgs, bool use_dma)
1223 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);
1241 	if (msgs->len - 1)
1253 			struct i2c_msg *msgs, bool is_lastmsg)
1264 	result = i2c_imx_prepare_read(i2c_imx, msgs, true);
1274 	dma->dma_len = msgs->len - 2;
1275 	result = i2c_imx_dma_xfer(i2c_imx, msgs);
1309 	msgs->buf[msgs->len-2] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);
1340 	msgs->buf[msgs->len-1] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);
1346 				struct i2c_msg *msgs)
1351 		__func__, i2c_8bit_addr_from_msg(msgs));
1354 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);
1364 	for (i = 0; i < msgs->len; i++) {
1367 			__func__, i, msgs->buf[i]);
1368 		imx_i2c_write_reg(msgs->buf[i], i2c_imx, IMX_I2C_I2DR);
1379 static int i2c_imx_write(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs)
1382 		__func__, i2c_8bit_addr_from_msg(msgs));
1385 	i2c_imx->msg = msgs;
1392 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);
1396 			   (msgs->len + 1) * HZ / 10);
1410 			       struct i2c_msg *msgs, bool is_lastmsg)
1414 	int block_data = msgs->flags & I2C_M_RECV_LEN;
1416 	result = i2c_imx_prepare_read(i2c_imx, msgs, false);
1423 	for (i = 0; i < msgs->len; i++) {
1432 		 * msgs->len.
1441 			msgs->len += len;
1443 		if (i == (msgs->len - 1)) {
1470 		} else if (i == (msgs->len - 2)) {
1478 			msgs->buf[0] = len;
1480 			msgs->buf[i] = imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);
1483 			__func__, i, msgs->buf[i]);
1488 static int i2c_imx_read(struct imx_i2c_struct *i2c_imx, struct i2c_msg *msgs,
1491 	int block_data = msgs->flags & I2C_M_RECV_LEN;
1495 		__func__, i2c_8bit_addr_from_msg(msgs));
1503 	i2c_imx->msg = msgs;
1510 	imx_i2c_write_reg(i2c_8bit_addr_from_msg(msgs), i2c_imx, IMX_I2C_I2DR);
1514 			   (msgs->len + 1) * HZ / 10);
1531 			       struct i2c_msg *msgs, int num, bool atomic)
1591 		use_dma = i2c_imx->dma && msgs[i].len >= DMA_THRESHOLD &&
1592 			msgs[i].flags & I2C_M_DMA_SAFE;
1593 		if (msgs[i].flags & I2C_M_RD) {
1594 			int block_data = msgs->flags & I2C_M_RECV_LEN;
1597 				result = i2c_imx_atomic_read(i2c_imx, &msgs[i], is_lastmsg);
1599 				result = i2c_imx_dma_read(i2c_imx, &msgs[i], is_lastmsg);
1601 				result = i2c_imx_read(i2c_imx, &msgs[i], is_lastmsg);
1604 				result = i2c_imx_atomic_write(i2c_imx, &msgs[i]);
1606 				result = i2c_imx_dma_write(i2c_imx, &msgs[i]);
1608 				result = i2c_imx_write(i2c_imx, &msgs[i]);
1629 			struct i2c_msg *msgs, int num)
1638 	result = i2c_imx_xfer_common(adapter, msgs, num, false);
1647 			       struct i2c_msg *msgs, int num)
1656 	result = i2c_imx_xfer_common(adapter, msgs, num, true);