1 // SPDX-License-Identifier: GPL-2.0-only
7  * Based on AUO panel driver by Rob Clark <robdclark@gmail.com>
23  * When power is turned off to this panel a minimum off time of 500ms has to be
31 	struct mipi_dsi_device *dsi;  member
40 static inline struct wuxga_nt_panel *to_wuxga_nt_panel(struct drm_panel *panel)  in to_wuxga_nt_panel()  argument
42 	return container_of(panel, struct wuxga_nt_panel, base);  in to_wuxga_nt_panel()
47 	return mipi_dsi_turn_on_peripheral(wuxga_nt->dsi);  in wuxga_nt_panel_on()
50 static int wuxga_nt_panel_disable(struct drm_panel *panel)  in wuxga_nt_panel_disable()  argument
52 	struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);  in wuxga_nt_panel_disable()
54 	return mipi_dsi_shutdown_peripheral(wuxga_nt->dsi);  in wuxga_nt_panel_disable()
57 static int wuxga_nt_panel_unprepare(struct drm_panel *panel)  in wuxga_nt_panel_unprepare()  argument
59 	struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);  in wuxga_nt_panel_unprepare()
61 	regulator_disable(wuxga_nt->supply);  in wuxga_nt_panel_unprepare()
62 	wuxga_nt->earliest_wake = ktime_add_ms(ktime_get_real(), MIN_POFF_MS);  in wuxga_nt_panel_unprepare()
67 static int wuxga_nt_panel_prepare(struct drm_panel *panel)  in wuxga_nt_panel_prepare()  argument
69 	struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);  in wuxga_nt_panel_prepare()
74 	 * If the user re-enabled the panel before the required off-time then  in wuxga_nt_panel_prepare()
75 	 * we need to wait the remaining period before re-enabling regulator  in wuxga_nt_panel_prepare()
77 	enablewait = ktime_ms_delta(wuxga_nt->earliest_wake, ktime_get_real());  in wuxga_nt_panel_prepare()
86 	ret = regulator_enable(wuxga_nt->supply);  in wuxga_nt_panel_prepare()
91 	 * A minimum delay of 250ms is required after power-up until commands  in wuxga_nt_panel_prepare()
98 		dev_err(panel->dev, "failed to set panel on: %d\n", ret);  in wuxga_nt_panel_prepare()
105 	regulator_disable(wuxga_nt->supply);  in wuxga_nt_panel_prepare()
122 static int wuxga_nt_panel_get_modes(struct drm_panel *panel,  in wuxga_nt_panel_get_modes()  argument
127 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in wuxga_nt_panel_get_modes()
129 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in wuxga_nt_panel_get_modes()
132 		return -ENOMEM;  in wuxga_nt_panel_get_modes()
139 	connector->display_info.width_mm = 217;  in wuxga_nt_panel_get_modes()
140 	connector->display_info.height_mm = 136;  in wuxga_nt_panel_get_modes()
160 	struct device *dev = &wuxga_nt->dsi->dev;  in wuxga_nt_panel_add()
163 	wuxga_nt->mode = &default_mode;  in wuxga_nt_panel_add()
165 	wuxga_nt->supply = devm_regulator_get(dev, "power");  in wuxga_nt_panel_add()
166 	if (IS_ERR(wuxga_nt->supply))  in wuxga_nt_panel_add()
167 		return PTR_ERR(wuxga_nt->supply);  in wuxga_nt_panel_add()
169 	drm_panel_init(&wuxga_nt->base, &wuxga_nt->dsi->dev,  in wuxga_nt_panel_add()
172 	ret = drm_panel_of_backlight(&wuxga_nt->base);  in wuxga_nt_panel_add()
176 	drm_panel_add(&wuxga_nt->base);  in wuxga_nt_panel_add()
183 	if (wuxga_nt->base.dev)  in wuxga_nt_panel_del()
184 		drm_panel_remove(&wuxga_nt->base);  in wuxga_nt_panel_del()
187 static int wuxga_nt_panel_probe(struct mipi_dsi_device *dsi)  in wuxga_nt_panel_probe()  argument
192 	dsi->lanes = 4;  in wuxga_nt_panel_probe()
193 	dsi->format = MIPI_DSI_FMT_RGB888;  in wuxga_nt_panel_probe()
194 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in wuxga_nt_panel_probe()
199 	wuxga_nt = devm_kzalloc(&dsi->dev, sizeof(*wuxga_nt), GFP_KERNEL);  in wuxga_nt_panel_probe()
201 		return -ENOMEM;  in wuxga_nt_panel_probe()
203 	mipi_dsi_set_drvdata(dsi, wuxga_nt);  in wuxga_nt_panel_probe()
205 	wuxga_nt->dsi = dsi;  in wuxga_nt_panel_probe()
211 	ret = mipi_dsi_attach(dsi);  in wuxga_nt_panel_probe()
220 static void wuxga_nt_panel_remove(struct mipi_dsi_device *dsi)  in wuxga_nt_panel_remove()  argument
222 	struct wuxga_nt_panel *wuxga_nt = mipi_dsi_get_drvdata(dsi);  in wuxga_nt_panel_remove()
225 	ret = mipi_dsi_detach(dsi);  in wuxga_nt_panel_remove()
227 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);  in wuxga_nt_panel_remove()
234 		.name = "panel-panasonic-vvx10f034n00",
243 MODULE_DESCRIPTION("Panasonic VVX10F034N00 Novatek NT1397-based WUXGA (1920x1200) video mode panel …