946 					struct exynos_dsi_transfer *xfer)  in exynos_dsi_send_to_fifo()  argument
949 	const u8 *payload = xfer->tx_payload + xfer->tx_done;  in exynos_dsi_send_to_fifo()
950 	u16 length = xfer->tx_len - xfer->tx_done;  in exynos_dsi_send_to_fifo()
951 	bool first = !xfer->tx_done;  in exynos_dsi_send_to_fifo()
955 		xfer, xfer->tx_len, xfer->tx_done, xfer->rx_len, xfer->rx_done);  in exynos_dsi_send_to_fifo()
960 	xfer->tx_done += length;  in exynos_dsi_send_to_fifo()
992 	reg = (xfer->data[1] << 16) | (xfer->data[0] << 8) | xfer->data_id;  in exynos_dsi_send_to_fifo()
998 	if (NEQV(xfer->flags & MIPI_DSI_MSG_USE_LPM,  in exynos_dsi_send_to_fifo()
1000 		exynos_dsi_set_cmd_lpm(dsi, xfer->flags & MIPI_DSI_MSG_USE_LPM);  in exynos_dsi_send_to_fifo()
1006 	if (xfer->flags & MIPI_DSI_MSG_REQ_ACK)  in exynos_dsi_send_to_fifo()
1011 					struct exynos_dsi_transfer *xfer)  in exynos_dsi_read_from_fifo()  argument
1013 	u8 *payload = xfer->rx_payload + xfer->rx_done;  in exynos_dsi_read_from_fifo()
1014 	bool first = !xfer->rx_done;  in exynos_dsi_read_from_fifo()
1025 			if (xfer->rx_len >= 2) {  in exynos_dsi_read_from_fifo()
1027 				++xfer->rx_done;  in exynos_dsi_read_from_fifo()
1033 			++xfer->rx_done;  in exynos_dsi_read_from_fifo()
1034 			xfer->rx_len = xfer->rx_done;  in exynos_dsi_read_from_fifo()
1035 			xfer->result = 0;  in exynos_dsi_read_from_fifo()
1040 			xfer->result = 0;  in exynos_dsi_read_from_fifo()
1045 		if (length > xfer->rx_len) {  in exynos_dsi_read_from_fifo()
1048 				xfer->rx_len, length);  in exynos_dsi_read_from_fifo()
1049 			length = xfer->rx_len;  in exynos_dsi_read_from_fifo()
1050 		} else if (length < xfer->rx_len)  in exynos_dsi_read_from_fifo()
1051 			xfer->rx_len = length;  in exynos_dsi_read_from_fifo()
1054 	length = xfer->rx_len - xfer->rx_done;  in exynos_dsi_read_from_fifo()
1055 	xfer->rx_done += length;  in exynos_dsi_read_from_fifo()
1082 	if (xfer->rx_done == xfer->rx_len)  in exynos_dsi_read_from_fifo()
1083 		xfer->result = 0;  in exynos_dsi_read_from_fifo()
1097 	struct exynos_dsi_transfer *xfer;  in exynos_dsi_transfer_start()  local
1108 	xfer = list_first_entry(&dsi->transfer_list,  in exynos_dsi_transfer_start()
1113 	if (xfer->tx_len && xfer->tx_done == xfer->tx_len)  in exynos_dsi_transfer_start()
1117 	exynos_dsi_send_to_fifo(dsi, xfer);  in exynos_dsi_transfer_start()
1119 	if (xfer->tx_len || xfer->rx_len)  in exynos_dsi_transfer_start()
1122 	xfer->result = 0;  in exynos_dsi_transfer_start()
1123 	complete(&xfer->completed);  in exynos_dsi_transfer_start()
1127 	list_del_init(&xfer->list);  in exynos_dsi_transfer_start()
1138 	struct exynos_dsi_transfer *xfer;  in exynos_dsi_transfer_finish()  local
1149 	xfer = list_first_entry(&dsi->transfer_list,  in exynos_dsi_transfer_finish()
1156 		xfer, xfer->tx_len, xfer->tx_done, xfer->rx_len, xfer->rx_done);  in exynos_dsi_transfer_finish()
1158 	if (xfer->tx_done != xfer->tx_len)  in exynos_dsi_transfer_finish()
1161 	if (xfer->rx_done != xfer->rx_len)  in exynos_dsi_transfer_finish()
1162 		exynos_dsi_read_from_fifo(dsi, xfer);  in exynos_dsi_transfer_finish()
1164 	if (xfer->rx_done != xfer->rx_len)  in exynos_dsi_transfer_finish()
1169 	list_del_init(&xfer->list);  in exynos_dsi_transfer_finish()
1174 	if (!xfer->rx_len)  in exynos_dsi_transfer_finish()
1175 		xfer->result = 0;  in exynos_dsi_transfer_finish()
1176 	complete(&xfer->completed);  in exynos_dsi_transfer_finish()
1182 					struct exynos_dsi_transfer *xfer)  in exynos_dsi_remove_transfer()  argument
1190 	    xfer == list_first_entry(&dsi->transfer_list,  in exynos_dsi_remove_transfer()
1192 		list_del_init(&xfer->list);  in exynos_dsi_remove_transfer()
1200 	list_del_init(&xfer->list);  in exynos_dsi_remove_transfer()
1206 					struct exynos_dsi_transfer *xfer)  in exynos_dsi_transfer()  argument
1211 	xfer->tx_done = 0;  in exynos_dsi_transfer()
1212 	xfer->rx_done = 0;  in exynos_dsi_transfer()
1213 	xfer->result = -ETIMEDOUT;  in exynos_dsi_transfer()
1214 	init_completion(&xfer->completed);  in exynos_dsi_transfer()
1219 	list_add_tail(&xfer->list, &dsi->transfer_list);  in exynos_dsi_transfer()
1226 	wait_for_completion_timeout(&xfer->completed,  in exynos_dsi_transfer()
1228 	if (xfer->result == -ETIMEDOUT) {  in exynos_dsi_transfer()
1229 		exynos_dsi_remove_transfer(dsi, xfer);  in exynos_dsi_transfer()
1230 		dev_err(dsi->dev, "xfer timed out: %*ph %*ph\n", 2, xfer->data,  in exynos_dsi_transfer()
1231 			xfer->tx_len, xfer->tx_payload);  in exynos_dsi_transfer()
1236 	return xfer->result;  in exynos_dsi_transfer()
1414 	struct exynos_dsi_transfer xfer;  in exynos_dsi_host_transfer()  local
1430 	xfer.data_id = msg->type | (msg->channel << 6);  in exynos_dsi_host_transfer()
1437 		xfer.tx_len = 0;  in exynos_dsi_host_transfer()
1438 		xfer.data[0] = tx_buf[0];  in exynos_dsi_host_transfer()
1439 		xfer.data[1] = (msg->tx_len == 2) ? tx_buf[1] : 0;  in exynos_dsi_host_transfer()
1441 		xfer.tx_len = msg->tx_len;  in exynos_dsi_host_transfer()
1442 		xfer.data[0] = msg->tx_len & 0xff;  in exynos_dsi_host_transfer()
1443 		xfer.data[1] = msg->tx_len >> 8;  in exynos_dsi_host_transfer()
1444 		xfer.tx_payload = msg->tx_buf;  in exynos_dsi_host_transfer()
1447 	xfer.rx_len = msg->rx_len;  in exynos_dsi_host_transfer()
1448 	xfer.rx_payload = msg->rx_buf;  in exynos_dsi_host_transfer()
1449 	xfer.flags = msg->flags;  in exynos_dsi_host_transfer()
1451 	ret = exynos_dsi_transfer(dsi, &xfer);  in exynos_dsi_host_transfer()
1452 	return (ret < 0) ? ret : xfer.rx_done;  in exynos_dsi_host_transfer()