2  * Marvell NFC-over-UART driver
11  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
22 #include <net/nfc/nci.h>
23 #include <net/nfc/nci_core.h>
29 static int reset_n_io = -EINVAL;
48 	struct nci_uart *nu = priv->drv_data;  in nfcmrvl_uart_nci_send()
50 	return nu->ops.send(nu, skb);  in nfcmrvl_uart_nci_send()
56 	struct nci_uart *nu = priv->drv_data;  in nfcmrvl_uart_nci_update_config()
59 	nci_uart_set_config(nu, le32_to_cpu(config->baudrate),  in nfcmrvl_uart_nci_update_config()
60 			    config->flow_control);  in nfcmrvl_uart_nci_update_config()
76 	matched_node = of_get_compatible_child(node, "marvell,nfc-uart");  in nfcmrvl_uart_parse_dt()
78 		matched_node = of_get_compatible_child(node, "mrvl,nfc-uart");  in nfcmrvl_uart_parse_dt()
80 			return -ENODEV;  in nfcmrvl_uart_parse_dt()
90 	if (of_find_property(matched_node, "flow-control", NULL))  in nfcmrvl_uart_parse_dt()
91 		pdata->flow_control = 1;  in nfcmrvl_uart_parse_dt()
93 		pdata->flow_control = 0;  in nfcmrvl_uart_parse_dt()
95 	if (of_find_property(matched_node, "break-control", NULL))  in nfcmrvl_uart_parse_dt()
96 		pdata->break_control = 1;  in nfcmrvl_uart_parse_dt()
98 		pdata->break_control = 0;  in nfcmrvl_uart_parse_dt()
106 ** NCI UART OPS
114 	struct device *dev = nu->tty->dev;  in nfcmrvl_nci_uart_open()
122 	if (dev && dev->parent && dev->parent->of_node)  in nfcmrvl_nci_uart_open()
123 		if (nfcmrvl_uart_parse_dt(dev->parent->of_node, &config) == 0)  in nfcmrvl_nci_uart_open()
127 		pr_info("No platform data / DT -> fallback to module params\n");  in nfcmrvl_nci_uart_open()
140 	priv->support_fw_dnld = true;  in nfcmrvl_nci_uart_open()
142 	nu->drv_data = priv;  in nfcmrvl_nci_uart_open()
143 	nu->ndev = priv->ndev;  in nfcmrvl_nci_uart_open()
150 	nfcmrvl_nci_unregister_dev((struct nfcmrvl_private *)nu->drv_data);  in nfcmrvl_nci_uart_close()
155 	return nfcmrvl_nci_recv_frame((struct nfcmrvl_private *)nu->drv_data,  in nfcmrvl_nci_uart_recv()
161 	struct nfcmrvl_private *priv = (struct nfcmrvl_private *)nu->drv_data;  in nfcmrvl_nci_uart_tx_start()
163 	if (priv->ndev->nfc_dev->fw_download_in_progress)  in nfcmrvl_nci_uart_tx_start()
167 	if (priv->config.break_control && nu->tty->ops->break_ctl) {  in nfcmrvl_nci_uart_tx_start()
168 		nu->tty->ops->break_ctl(nu->tty, 0);  in nfcmrvl_nci_uart_tx_start()
175 	struct nfcmrvl_private *priv = (struct nfcmrvl_private *)nu->drv_data;  in nfcmrvl_nci_uart_tx_done()
177 	if (priv->ndev->nfc_dev->fw_download_in_progress)  in nfcmrvl_nci_uart_tx_done()
185 	if (priv->config.break_control && nu->tty->ops->break_ctl) {  in nfcmrvl_nci_uart_tx_done()
186 		nu->tty->ops->break_ctl(nu->tty, -1);  in nfcmrvl_nci_uart_tx_done()
222 MODULE_DESCRIPTION("Marvell NFC-over-UART");
226 MODULE_PARM_DESC(flow_control, "Tell if UART needs flow control at init.");
229 MODULE_PARM_DESC(break_control, "Tell if UART driver must drive break signal.");