1 // SPDX-License-Identifier: GPL-2.0-only
3  * Novatek NT36523 DriverIC panels driver
68 	struct mipi_dsi_device *dsi0 = pinfo->dsi[0];  in elish_boe_init_sequence()
69 	struct mipi_dsi_device *dsi1 = pinfo->dsi[1];  in elish_boe_init_sequence()
288 	struct mipi_dsi_device *dsi0 = pinfo->dsi[0];  in elish_csot_init_sequence()
289 	struct mipi_dsi_device *dsi1 = pinfo->dsi[1];  in elish_csot_init_sequence()
486 	struct mipi_dsi_device *dsi = pinfo->dsi[0];  in j606f_boe_init_sequence()
487 	struct device *dev = &dsi->dev;  in j606f_boe_init_sequence()
982 		.type = "BOE-elish",
1000 		.type = "CSOT-elish",
1030 	gpiod_set_value_cansleep(pinfo->reset_gpio, 1);  in nt36523_reset()
1032 	gpiod_set_value_cansleep(pinfo->reset_gpio, 0);  in nt36523_reset()
1034 	gpiod_set_value_cansleep(pinfo->reset_gpio, 1);  in nt36523_reset()
1036 	gpiod_set_value_cansleep(pinfo->reset_gpio, 0);  in nt36523_reset()
1045 	ret = regulator_enable(pinfo->vddio);  in nt36523_prepare()
1047 		dev_err(panel->dev, "failed to enable vddio regulator: %d\n", ret);  in nt36523_prepare()
1053 	ret = pinfo->desc->init_sequence(pinfo);  in nt36523_prepare()
1055 		regulator_disable(pinfo->vddio);  in nt36523_prepare()
1056 		dev_err(panel->dev, "failed to initialize panel: %d\n", ret);  in nt36523_prepare()
1068 	for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++) {  in nt36523_disable()
1069 		ret = mipi_dsi_dcs_set_display_off(pinfo->dsi[i]);  in nt36523_disable()
1071 			dev_err(&pinfo->dsi[i]->dev, "failed to set display off: %d\n", ret);  in nt36523_disable()
1074 	for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++) {  in nt36523_disable()
1075 		ret = mipi_dsi_dcs_enter_sleep_mode(pinfo->dsi[i]);  in nt36523_disable()
1077 			dev_err(&pinfo->dsi[i]->dev, "failed to enter sleep mode: %d\n", ret);  in nt36523_disable()
1089 	gpiod_set_value_cansleep(pinfo->reset_gpio, 1);  in nt36523_unprepare()
1090 	regulator_disable(pinfo->vddio);  in nt36523_unprepare()
1100 	ret = mipi_dsi_detach(pinfo->dsi[0]);  in nt36523_remove()
1102 		dev_err(&dsi->dev, "failed to detach from DSI0 host: %d\n", ret);  in nt36523_remove()
1104 	if (pinfo->desc->is_dual_dsi) {  in nt36523_remove()
1105 		ret = mipi_dsi_detach(pinfo->dsi[1]);  in nt36523_remove()
1107 			dev_err(&pinfo->dsi[1]->dev, "failed to detach from DSI1 host: %d\n", ret);  in nt36523_remove()
1108 		mipi_dsi_device_unregister(pinfo->dsi[1]);  in nt36523_remove()
1111 	drm_panel_remove(&pinfo->panel);  in nt36523_remove()
1120 	for (i = 0; i < pinfo->desc->num_modes; i++) {  in nt36523_get_modes()
1121 		const struct drm_display_mode *m = &pinfo->desc->modes[i];  in nt36523_get_modes()
1124 		mode = drm_mode_duplicate(connector->dev, m);  in nt36523_get_modes()
1126 			dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in nt36523_get_modes()
1127 				m->hdisplay, m->vdisplay, drm_mode_vrefresh(m));  in nt36523_get_modes()
1128 			return -ENOMEM;  in nt36523_get_modes()
1131 		mode->type = DRM_MODE_TYPE_DRIVER;  in nt36523_get_modes()
1133 			mode->type |= DRM_MODE_TYPE_PREFERRED;  in nt36523_get_modes()
1139 	connector->display_info.width_mm = pinfo->desc->width_mm;  in nt36523_get_modes()
1140 	connector->display_info.height_mm = pinfo->desc->height_mm;  in nt36523_get_modes()
1141 	connector->display_info.bpc = pinfo->desc->bpc;  in nt36523_get_modes()
1143 	return pinfo->desc->num_modes;  in nt36523_get_modes()
1150 	return pinfo->orientation;  in nt36523_get_orientation()
1167 	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;  in nt36523_bl_update_status()
1173 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in nt36523_bl_update_status()
1184 	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;  in nt36523_bl_get_brightness()
1190 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in nt36523_bl_get_brightness()
1202 	struct device *dev = &dsi->dev;  in nt36523_create_backlight()
1216 	struct device *dev = &dsi->dev;  in nt36523_probe()
1225 		return -ENOMEM;  in nt36523_probe()
1227 	pinfo->vddio = devm_regulator_get(dev, "vddio");  in nt36523_probe()
1228 	if (IS_ERR(pinfo->vddio))  in nt36523_probe()
1229 		return dev_err_probe(dev, PTR_ERR(pinfo->vddio), "failed to get vddio regulator\n");  in nt36523_probe()
1231 	pinfo->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in nt36523_probe()
1232 	if (IS_ERR(pinfo->reset_gpio))  in nt36523_probe()
1233 		return dev_err_probe(dev, PTR_ERR(pinfo->reset_gpio), "failed to get reset gpio\n");  in nt36523_probe()
1235 	pinfo->desc = of_device_get_match_data(dev);  in nt36523_probe()
1236 	if (!pinfo->desc)  in nt36523_probe()
1237 		return -ENODEV;  in nt36523_probe()
1240 	if (pinfo->desc->is_dual_dsi) {  in nt36523_probe()
1241 		info = &pinfo->desc->dsi_info;  in nt36523_probe()
1243 		dsi1 = of_graph_get_remote_node(dsi->dev.of_node, 1, -1);  in nt36523_probe()
1246 			return -ENODEV;  in nt36523_probe()
1252 			return dev_err_probe(dev, -EPROBE_DEFER, "cannot get secondary DSI host\n");  in nt36523_probe()
1254 		pinfo->dsi[1] = mipi_dsi_device_register_full(dsi1_host, info);  in nt36523_probe()
1255 		if (IS_ERR(pinfo->dsi[1])) {  in nt36523_probe()
1257 			return PTR_ERR(pinfo->dsi[1]);  in nt36523_probe()
1261 	pinfo->dsi[0] = dsi;  in nt36523_probe()
1263 	drm_panel_init(&pinfo->panel, dev, &nt36523_panel_funcs, DRM_MODE_CONNECTOR_DSI);  in nt36523_probe()
1265 	ret = of_drm_get_panel_orientation(dev->of_node, &pinfo->orientation);  in nt36523_probe()
1267 		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, ret);  in nt36523_probe()
1271 	pinfo->panel.prepare_prev_first = true;  in nt36523_probe()
1273 	if (pinfo->desc->has_dcs_backlight) {  in nt36523_probe()
1274 		pinfo->panel.backlight = nt36523_create_backlight(dsi);  in nt36523_probe()
1275 		if (IS_ERR(pinfo->panel.backlight))  in nt36523_probe()
1276 			return dev_err_probe(dev, PTR_ERR(pinfo->panel.backlight),  in nt36523_probe()
1279 		ret = drm_panel_of_backlight(&pinfo->panel);  in nt36523_probe()
1284 	drm_panel_add(&pinfo->panel);  in nt36523_probe()
1286 	for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++) {  in nt36523_probe()
1287 		pinfo->dsi[i]->lanes = pinfo->desc->lanes;  in nt36523_probe()
1288 		pinfo->dsi[i]->format = pinfo->desc->format;  in nt36523_probe()
1289 		pinfo->dsi[i]->mode_flags = pinfo->desc->mode_flags;  in nt36523_probe()
1291 		ret = mipi_dsi_attach(pinfo->dsi[i]);  in nt36523_probe()
1301 		.compatible = "lenovo,j606f-boe-nt36523w",
1305 		.compatible = "xiaomi,elish-boe-nt36523",
1309 		.compatible = "xiaomi,elish-csot-nt36523",
1320 		.name = "panel-novatek-nt36523",
1327 MODULE_DESCRIPTION("DRM driver for Novatek NT36523 based MIPI DSI panels");