1 // SPDX-License-Identifier: GPL-2.0+
42 	enum drm_panel_orientation orientation;  member
54 	if (lvds->enable_gpio)  in panel_lvds_unprepare()
55 		gpiod_set_value_cansleep(lvds->enable_gpio, 0);  in panel_lvds_unprepare()
57 	if (lvds->supply)  in panel_lvds_unprepare()
58 		regulator_disable(lvds->supply);  in panel_lvds_unprepare()
67 	if (lvds->supply) {  in panel_lvds_prepare()
70 		err = regulator_enable(lvds->supply);  in panel_lvds_prepare()
72 			dev_err(lvds->dev, "failed to enable supply: %d\n",  in panel_lvds_prepare()
78 	if (lvds->enable_gpio)  in panel_lvds_prepare()
79 		gpiod_set_value_cansleep(lvds->enable_gpio, 1);  in panel_lvds_prepare()
90 	mode = drm_mode_duplicate(connector->dev, &lvds->dmode);  in panel_lvds_get_modes()
94 	mode->type |= DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in panel_lvds_get_modes()
97 	connector->display_info.width_mm = lvds->dmode.width_mm;  in panel_lvds_get_modes()
98 	connector->display_info.height_mm = lvds->dmode.height_mm;  in panel_lvds_get_modes()
99 	drm_display_info_set_bus_formats(&connector->display_info,  in panel_lvds_get_modes()
100 					 &lvds->bus_format, 1);  in panel_lvds_get_modes()
101 	connector->display_info.bus_flags = lvds->bus_flags;  in panel_lvds_get_modes()
107 	drm_connector_set_panel_orientation(connector, lvds->orientation);  in panel_lvds_get_modes()
116 	return lvds->orientation;  in panel_lvds_get_orientation()
128 	struct device_node *np = lvds->dev->of_node;  in panel_lvds_parse_dt()
131 	ret = of_drm_get_panel_orientation(np, &lvds->orientation);  in panel_lvds_parse_dt()
133 		dev_err(lvds->dev, "%pOF: failed to get orientation %d\n", np, ret);  in panel_lvds_parse_dt()
137 	ret = of_get_drm_panel_display_mode(np, &lvds->dmode, &lvds->bus_flags);  in panel_lvds_parse_dt()
139 		dev_err(lvds->dev, "%pOF: problems parsing panel-timing (%d)\n",  in panel_lvds_parse_dt()
144 	of_property_read_string(np, "label", &lvds->label);  in panel_lvds_parse_dt()
148 		dev_err(lvds->dev, "%pOF: invalid or missing %s DT property\n",  in panel_lvds_parse_dt()
149 			np, "data-mapping");  in panel_lvds_parse_dt()
153 	lvds->bus_format = ret;  in panel_lvds_parse_dt()
155 	lvds->bus_flags |= of_property_read_bool(np, "data-mirror") ?  in panel_lvds_parse_dt()
167 	lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL);  in panel_lvds_probe()
169 		return -ENOMEM;  in panel_lvds_probe()
171 	lvds->dev = &pdev->dev;  in panel_lvds_probe()
177 	lvds->supply = devm_regulator_get_optional(lvds->dev, "power");  in panel_lvds_probe()
178 	if (IS_ERR(lvds->supply)) {  in panel_lvds_probe()
179 		ret = PTR_ERR(lvds->supply);  in panel_lvds_probe()
181 		if (ret != -ENODEV) {  in panel_lvds_probe()
182 			if (ret != -EPROBE_DEFER)  in panel_lvds_probe()
183 				dev_err(lvds->dev, "failed to request regulator: %d\n",  in panel_lvds_probe()
188 		lvds->supply = NULL;  in panel_lvds_probe()
191 	/* Get GPIOs and backlight controller. */  in panel_lvds_probe()
192 	lvds->enable_gpio = devm_gpiod_get_optional(lvds->dev, "enable",  in panel_lvds_probe()
194 	if (IS_ERR(lvds->enable_gpio)) {  in panel_lvds_probe()
195 		ret = PTR_ERR(lvds->enable_gpio);  in panel_lvds_probe()
196 		dev_err(lvds->dev, "failed to request %s GPIO: %d\n",  in panel_lvds_probe()
201 	lvds->reset_gpio = devm_gpiod_get_optional(lvds->dev, "reset",  in panel_lvds_probe()
203 	if (IS_ERR(lvds->reset_gpio)) {  in panel_lvds_probe()
204 		ret = PTR_ERR(lvds->reset_gpio);  in panel_lvds_probe()
205 		dev_err(lvds->dev, "failed to request %s GPIO: %d\n",  in panel_lvds_probe()
218 	drm_panel_init(&lvds->panel, lvds->dev, &panel_lvds_funcs,  in panel_lvds_probe()
221 	ret = drm_panel_of_backlight(&lvds->panel);  in panel_lvds_probe()
225 	drm_panel_add(&lvds->panel);  in panel_lvds_probe()
227 	dev_set_drvdata(lvds->dev, lvds);  in panel_lvds_probe()
235 	drm_panel_remove(&lvds->panel);  in panel_lvds_remove()
237 	drm_panel_disable(&lvds->panel);  in panel_lvds_remove()
241 	{ .compatible = "panel-lvds", },
251 		.name	= "panel-lvds",