1 // SPDX-License-Identifier: GPL-2.0-only
7  * Based on AUO panel driver by Rob Clark <robdclark@gmail.com>
31 	struct mipi_dsi_device *dsi;  member
50 	return mipi_dsi_turn_on_peripheral(wuxga_nt->dsi);  in wuxga_nt_panel_on()
58 	if (!wuxga_nt->enabled)  in wuxga_nt_panel_disable()
61 	mipi_ret = mipi_dsi_shutdown_peripheral(wuxga_nt->dsi);  in wuxga_nt_panel_disable()
63 	wuxga_nt->enabled = false;  in wuxga_nt_panel_disable()
72 	if (!wuxga_nt->prepared)  in wuxga_nt_panel_unprepare()
75 	regulator_disable(wuxga_nt->supply);  in wuxga_nt_panel_unprepare()
76 	wuxga_nt->earliest_wake = ktime_add_ms(ktime_get_real(), MIN_POFF_MS);  in wuxga_nt_panel_unprepare()
77 	wuxga_nt->prepared = false;  in wuxga_nt_panel_unprepare()
88 	if (wuxga_nt->prepared)  in wuxga_nt_panel_prepare()
92 	 * If the user re-enabled the panel before the required off-time then  in wuxga_nt_panel_prepare()
93 	 * we need to wait the remaining period before re-enabling regulator  in wuxga_nt_panel_prepare()
95 	enablewait = ktime_ms_delta(wuxga_nt->earliest_wake, ktime_get_real());  in wuxga_nt_panel_prepare()
104 	ret = regulator_enable(wuxga_nt->supply);  in wuxga_nt_panel_prepare()
109 	 * A minimum delay of 250ms is required after power-up until commands  in wuxga_nt_panel_prepare()
116 		dev_err(panel->dev, "failed to set panel on: %d\n", ret);  in wuxga_nt_panel_prepare()
120 	wuxga_nt->prepared = true;  in wuxga_nt_panel_prepare()
125 	regulator_disable(wuxga_nt->supply);  in wuxga_nt_panel_prepare()
134 	if (wuxga_nt->enabled)  in wuxga_nt_panel_enable()
137 	wuxga_nt->enabled = true;  in wuxga_nt_panel_enable()
159 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in wuxga_nt_panel_get_modes()
161 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in wuxga_nt_panel_get_modes()
164 		return -ENOMEM;  in wuxga_nt_panel_get_modes()
171 	connector->display_info.width_mm = 217;  in wuxga_nt_panel_get_modes()
172 	connector->display_info.height_mm = 136;  in wuxga_nt_panel_get_modes()
193 	struct device *dev = &wuxga_nt->dsi->dev;  in wuxga_nt_panel_add()
196 	wuxga_nt->mode = &default_mode;  in wuxga_nt_panel_add()
198 	wuxga_nt->supply = devm_regulator_get(dev, "power");  in wuxga_nt_panel_add()
199 	if (IS_ERR(wuxga_nt->supply))  in wuxga_nt_panel_add()
200 		return PTR_ERR(wuxga_nt->supply);  in wuxga_nt_panel_add()
202 	drm_panel_init(&wuxga_nt->base, &wuxga_nt->dsi->dev,  in wuxga_nt_panel_add()
205 	ret = drm_panel_of_backlight(&wuxga_nt->base);  in wuxga_nt_panel_add()
209 	drm_panel_add(&wuxga_nt->base);  in wuxga_nt_panel_add()
216 	if (wuxga_nt->base.dev)  in wuxga_nt_panel_del()
217 		drm_panel_remove(&wuxga_nt->base);  in wuxga_nt_panel_del()
220 static int wuxga_nt_panel_probe(struct mipi_dsi_device *dsi)  in wuxga_nt_panel_probe()  argument
225 	dsi->lanes = 4;  in wuxga_nt_panel_probe()
226 	dsi->format = MIPI_DSI_FMT_RGB888;  in wuxga_nt_panel_probe()
227 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in wuxga_nt_panel_probe()
232 	wuxga_nt = devm_kzalloc(&dsi->dev, sizeof(*wuxga_nt), GFP_KERNEL);  in wuxga_nt_panel_probe()
234 		return -ENOMEM;  in wuxga_nt_panel_probe()
236 	mipi_dsi_set_drvdata(dsi, wuxga_nt);  in wuxga_nt_panel_probe()
238 	wuxga_nt->dsi = dsi;  in wuxga_nt_panel_probe()
244 	ret = mipi_dsi_attach(dsi);  in wuxga_nt_panel_probe()
253 static void wuxga_nt_panel_remove(struct mipi_dsi_device *dsi)  in wuxga_nt_panel_remove()  argument
255 	struct wuxga_nt_panel *wuxga_nt = mipi_dsi_get_drvdata(dsi);  in wuxga_nt_panel_remove()
258 	ret = drm_panel_disable(&wuxga_nt->base);  in wuxga_nt_panel_remove()
260 		dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);  in wuxga_nt_panel_remove()
262 	ret = mipi_dsi_detach(dsi);  in wuxga_nt_panel_remove()
264 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);  in wuxga_nt_panel_remove()
269 static void wuxga_nt_panel_shutdown(struct mipi_dsi_device *dsi)  in wuxga_nt_panel_shutdown()  argument
271 	struct wuxga_nt_panel *wuxga_nt = mipi_dsi_get_drvdata(dsi);  in wuxga_nt_panel_shutdown()
273 	drm_panel_disable(&wuxga_nt->base);  in wuxga_nt_panel_shutdown()
278 		.name = "panel-panasonic-vvx10f034n00",
288 MODULE_DESCRIPTION("Panasonic VVX10F034N00 Novatek NT1397-based WUXGA (1920x1200) video mode panel …