1 // SPDX-License-Identifier: GPL-2.0-only
25 	struct mipi_dsi_host dsi;  member
31 #define mipi_to_adp(x) container_of(x, struct adp_mipi_drv_private, dsi)
38 	ret = readl_poll_timeout(adp->mipi + DSI_CMD_PKT_STATUS,  in adp_dsi_gen_pkt_hdr_write()
42 		dev_err(adp->dsi.dev, "failed to get available command FIFO\n");  in adp_dsi_gen_pkt_hdr_write()
46 	writel(hdr_val, adp->mipi + DSI_GEN_HDR);  in adp_dsi_gen_pkt_hdr_write()
49 	ret = readl_poll_timeout(adp->mipi + DSI_CMD_PKT_STATUS,  in adp_dsi_gen_pkt_hdr_write()
53 		dev_err(adp->dsi.dev, "failed to write command FIFO\n");  in adp_dsi_gen_pkt_hdr_write()
63 	const u8 *tx_buf = packet->payload;  in adp_dsi_write()
64 	int len = packet->payload_length, pld_data_bytes = sizeof(u32), ret;  in adp_dsi_write()
72 			writel(le32_to_cpu(word), adp->mipi + DSI_GEN_PLD_DATA);  in adp_dsi_write()
76 			writel(le32_to_cpu(word), adp->mipi + DSI_GEN_PLD_DATA);  in adp_dsi_write()
78 			len -= pld_data_bytes;  in adp_dsi_write()
81 		ret = readl_poll_timeout(adp->mipi + DSI_CMD_PKT_STATUS,  in adp_dsi_write()
85 			dev_err(adp->dsi.dev,  in adp_dsi_write()
92 	memcpy(&word, packet->header, sizeof(packet->header));  in adp_dsi_write()
99 	int i, j, ret, len = msg->rx_len;  in adp_dsi_read()
100 	u8 *buf = msg->rx_buf;  in adp_dsi_read()
104 	ret = readl_poll_timeout(adp->mipi + DSI_CMD_PKT_STATUS,  in adp_dsi_read()
108 		dev_err(adp->dsi.dev, "Timeout during read operation\n");  in adp_dsi_read()
114 		ret = readl_poll_timeout(adp->mipi + DSI_CMD_PKT_STATUS,  in adp_dsi_read()
118 			dev_err(adp->dsi.dev, "Read payload FIFO is empty\n");  in adp_dsi_read()
122 		val = readl(adp->mipi + DSI_GEN_PLD_DATA);  in adp_dsi_read()
139 		dev_err(adp->dsi.dev, "failed to create packet: %d\n", ret);  in adp_dsi_host_transfer()
147 	if (msg->rx_buf && msg->rx_len) {  in adp_dsi_host_transfer()
151 		nb_bytes = msg->rx_len;  in adp_dsi_host_transfer()
159 static int adp_dsi_bind(struct device *dev, struct device *master, void *data)  in adp_dsi_bind()  argument
164 static void adp_dsi_unbind(struct device *dev, struct device *master, void *data)  in adp_dsi_unbind()  argument
180 	next = devm_drm_of_get_bridge(adp->dsi.dev, adp->dsi.dev->of_node, 1, 0);  in adp_dsi_host_attach()
184 	adp->next_bridge = next;  in adp_dsi_host_attach()
186 	drm_bridge_add(&adp->bridge);  in adp_dsi_host_attach()
188 	ret = component_add(host->dev, &adp_dsi_component_ops);  in adp_dsi_host_attach()
191 		drm_bridge_remove(&adp->bridge);  in adp_dsi_host_attach()
203 	component_del(host->dev, &adp_dsi_component_ops);  in adp_dsi_host_detach()
204 	drm_bridge_remove(&adp->bridge);  in adp_dsi_host_detach()
220 	return drm_bridge_attach(bridge->encoder, adp->next_bridge, bridge, flags);  in adp_dsi_bridge_attach()
231 	adp = devm_kzalloc(&pdev->dev, sizeof(*adp), GFP_KERNEL);  in adp_mipi_probe()
233 		return -ENOMEM;  in adp_mipi_probe()
235 	adp->mipi = devm_platform_ioremap_resource(pdev, 0);  in adp_mipi_probe()
236 	if (IS_ERR(adp->mipi)) {  in adp_mipi_probe()
237 		dev_err(&pdev->dev, "failed to map mipi mmio");  in adp_mipi_probe()
238 		return PTR_ERR(adp->mipi);  in adp_mipi_probe()
241 	adp->dsi.dev = &pdev->dev;  in adp_mipi_probe()
242 	adp->dsi.ops = &adp_dsi_host_ops;  in adp_mipi_probe()
243 	adp->bridge.funcs = &adp_dsi_bridge_funcs;  in adp_mipi_probe()
244 	adp->bridge.of_node = pdev->dev.of_node;  in adp_mipi_probe()
245 	adp->bridge.type = DRM_MODE_CONNECTOR_DSI;  in adp_mipi_probe()
246 	dev_set_drvdata(&pdev->dev, adp);  in adp_mipi_probe()
247 	return mipi_dsi_host_register(&adp->dsi);  in adp_mipi_probe()
252 	struct device *dev = &pdev->dev;  in adp_mipi_remove()
255 	mipi_dsi_host_unregister(&adp->dsi);  in adp_mipi_remove()
259 	{ .compatible = "apple,h7-display-pipe-mipi", },
266 		.name = "adp-mipi",