1 // SPDX-License-Identifier: GPL-2.0-only
7  * Based on AUO panel driver by Rob Clark <robdclark@gmail.com>
25 	struct mipi_dsi_device *dsi;  member
36 static inline struct sharp_nt_panel *to_sharp_nt_panel(struct drm_panel *panel)  in to_sharp_nt_panel()  argument
38 	return container_of(panel, struct sharp_nt_panel, base);  in to_sharp_nt_panel()
43 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_init()  local
46 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in sharp_nt_panel_init()
48 	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);  in sharp_nt_panel_init()
54 	/* Novatek two-lane operation */  in sharp_nt_panel_init()
55 	ret = mipi_dsi_dcs_write(dsi, 0xae, (u8[]){ 0x03 }, 1);  in sharp_nt_panel_init()
60 	ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT |  in sharp_nt_panel_init()
70 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_on()  local
73 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in sharp_nt_panel_on()
75 	ret = mipi_dsi_dcs_set_display_on(dsi);  in sharp_nt_panel_on()
84 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_off()  local
87 	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;  in sharp_nt_panel_off()
89 	ret = mipi_dsi_dcs_set_display_off(dsi);  in sharp_nt_panel_off()
93 	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);  in sharp_nt_panel_off()
101 static int sharp_nt_panel_disable(struct drm_panel *panel)  in sharp_nt_panel_disable()  argument
103 	struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);  in sharp_nt_panel_disable()
105 	if (!sharp_nt->enabled)  in sharp_nt_panel_disable()
108 	sharp_nt->enabled = false;  in sharp_nt_panel_disable()
113 static int sharp_nt_panel_unprepare(struct drm_panel *panel)  in sharp_nt_panel_unprepare()  argument
115 	struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);  in sharp_nt_panel_unprepare()
118 	if (!sharp_nt->prepared)  in sharp_nt_panel_unprepare()
123 		dev_err(panel->dev, "failed to set panel off: %d\n", ret);  in sharp_nt_panel_unprepare()
127 	regulator_disable(sharp_nt->supply);  in sharp_nt_panel_unprepare()
128 	if (sharp_nt->reset_gpio)  in sharp_nt_panel_unprepare()
129 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_unprepare()
131 	sharp_nt->prepared = false;  in sharp_nt_panel_unprepare()
136 static int sharp_nt_panel_prepare(struct drm_panel *panel)  in sharp_nt_panel_prepare()  argument
138 	struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);  in sharp_nt_panel_prepare()
141 	if (sharp_nt->prepared)  in sharp_nt_panel_prepare()
144 	ret = regulator_enable(sharp_nt->supply);  in sharp_nt_panel_prepare()
150 	if (sharp_nt->reset_gpio) {  in sharp_nt_panel_prepare()
151 		gpiod_set_value(sharp_nt->reset_gpio, 1);  in sharp_nt_panel_prepare()
153 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_prepare()
155 		gpiod_set_value(sharp_nt->reset_gpio, 1);  in sharp_nt_panel_prepare()
161 		dev_err(panel->dev, "failed to init panel: %d\n", ret);  in sharp_nt_panel_prepare()
167 		dev_err(panel->dev, "failed to set panel on: %d\n", ret);  in sharp_nt_panel_prepare()
171 	sharp_nt->prepared = true;  in sharp_nt_panel_prepare()
176 	regulator_disable(sharp_nt->supply);  in sharp_nt_panel_prepare()
177 	if (sharp_nt->reset_gpio)  in sharp_nt_panel_prepare()
178 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_prepare()
182 static int sharp_nt_panel_enable(struct drm_panel *panel)  in sharp_nt_panel_enable()  argument
184 	struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);  in sharp_nt_panel_enable()
186 	if (sharp_nt->enabled)  in sharp_nt_panel_enable()
189 	sharp_nt->enabled = true;  in sharp_nt_panel_enable()
206 static int sharp_nt_panel_get_modes(struct drm_panel *panel,  in sharp_nt_panel_get_modes()  argument
211 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in sharp_nt_panel_get_modes()
213 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in sharp_nt_panel_get_modes()
216 		return -ENOMEM;  in sharp_nt_panel_get_modes()
223 	connector->display_info.width_mm = 54;  in sharp_nt_panel_get_modes()
224 	connector->display_info.height_mm = 95;  in sharp_nt_panel_get_modes()
239 	struct device *dev = &sharp_nt->dsi->dev;  in sharp_nt_panel_add()
242 	sharp_nt->mode = &default_mode;  in sharp_nt_panel_add()
244 	sharp_nt->supply = devm_regulator_get(dev, "avdd");  in sharp_nt_panel_add()
245 	if (IS_ERR(sharp_nt->supply))  in sharp_nt_panel_add()
246 		return PTR_ERR(sharp_nt->supply);  in sharp_nt_panel_add()
248 	sharp_nt->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in sharp_nt_panel_add()
249 	if (IS_ERR(sharp_nt->reset_gpio)) {  in sharp_nt_panel_add()
250 		dev_err(dev, "cannot get reset-gpios %ld\n",  in sharp_nt_panel_add()
251 			PTR_ERR(sharp_nt->reset_gpio));  in sharp_nt_panel_add()
252 		sharp_nt->reset_gpio = NULL;  in sharp_nt_panel_add()
254 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_add()
257 	drm_panel_init(&sharp_nt->base, &sharp_nt->dsi->dev,  in sharp_nt_panel_add()
260 	ret = drm_panel_of_backlight(&sharp_nt->base);  in sharp_nt_panel_add()
264 	drm_panel_add(&sharp_nt->base);  in sharp_nt_panel_add()
271 	if (sharp_nt->base.dev)  in sharp_nt_panel_del()
272 		drm_panel_remove(&sharp_nt->base);  in sharp_nt_panel_del()
275 static int sharp_nt_panel_probe(struct mipi_dsi_device *dsi)  in sharp_nt_panel_probe()  argument
280 	dsi->lanes = 2;  in sharp_nt_panel_probe()
281 	dsi->format = MIPI_DSI_FMT_RGB888;  in sharp_nt_panel_probe()
282 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in sharp_nt_panel_probe()
287 	sharp_nt = devm_kzalloc(&dsi->dev, sizeof(*sharp_nt), GFP_KERNEL);  in sharp_nt_panel_probe()
289 		return -ENOMEM;  in sharp_nt_panel_probe()
291 	mipi_dsi_set_drvdata(dsi, sharp_nt);  in sharp_nt_panel_probe()
293 	sharp_nt->dsi = dsi;  in sharp_nt_panel_probe()
299 	return mipi_dsi_attach(dsi);  in sharp_nt_panel_probe()
302 static int sharp_nt_panel_remove(struct mipi_dsi_device *dsi)  in sharp_nt_panel_remove()  argument
304 	struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);  in sharp_nt_panel_remove()
307 	ret = drm_panel_disable(&sharp_nt->base);  in sharp_nt_panel_remove()
309 		dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);  in sharp_nt_panel_remove()
311 	ret = mipi_dsi_detach(dsi);  in sharp_nt_panel_remove()
313 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);  in sharp_nt_panel_remove()
320 static void sharp_nt_panel_shutdown(struct mipi_dsi_device *dsi)  in sharp_nt_panel_shutdown()  argument
322 	struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);  in sharp_nt_panel_shutdown()
324 	drm_panel_disable(&sharp_nt->base);  in sharp_nt_panel_shutdown()
328 	{ .compatible = "sharp,ls043t1le01-qhd", },
335 		.name = "panel-sharp-ls043t1le01-qhd",
345 MODULE_DESCRIPTION("Sharp LS043T1LE01 NT35565-based qHD (540x960) video mode panel driver");