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
40 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_init()  local
43 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in sharp_nt_panel_init()
45 	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);  in sharp_nt_panel_init()
51 	/* Novatek two-lane operation */  in sharp_nt_panel_init()
52 	ret = mipi_dsi_dcs_write(dsi, 0xae, (u8[]){ 0x03 }, 1);  in sharp_nt_panel_init()
57 	ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT |  in sharp_nt_panel_init()
67 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_on()  local
70 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in sharp_nt_panel_on()
72 	ret = mipi_dsi_dcs_set_display_on(dsi);  in sharp_nt_panel_on()
81 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_off()  local
84 	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;  in sharp_nt_panel_off()
86 	ret = mipi_dsi_dcs_set_display_off(dsi);  in sharp_nt_panel_off()
90 	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);  in sharp_nt_panel_off()
102 	if (!sharp_nt->prepared)  in sharp_nt_panel_unprepare()
107 		dev_err(panel->dev, "failed to set panel off: %d\n", ret);  in sharp_nt_panel_unprepare()
111 	regulator_disable(sharp_nt->supply);  in sharp_nt_panel_unprepare()
112 	if (sharp_nt->reset_gpio)  in sharp_nt_panel_unprepare()
113 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_unprepare()
115 	sharp_nt->prepared = false;  in sharp_nt_panel_unprepare()
125 	if (sharp_nt->prepared)  in sharp_nt_panel_prepare()
128 	ret = regulator_enable(sharp_nt->supply);  in sharp_nt_panel_prepare()
134 	if (sharp_nt->reset_gpio) {  in sharp_nt_panel_prepare()
135 		gpiod_set_value(sharp_nt->reset_gpio, 1);  in sharp_nt_panel_prepare()
137 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_prepare()
139 		gpiod_set_value(sharp_nt->reset_gpio, 1);  in sharp_nt_panel_prepare()
145 		dev_err(panel->dev, "failed to init panel: %d\n", ret);  in sharp_nt_panel_prepare()
151 		dev_err(panel->dev, "failed to set panel on: %d\n", ret);  in sharp_nt_panel_prepare()
155 	sharp_nt->prepared = true;  in sharp_nt_panel_prepare()
160 	regulator_disable(sharp_nt->supply);  in sharp_nt_panel_prepare()
161 	if (sharp_nt->reset_gpio)  in sharp_nt_panel_prepare()
162 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_prepare()
183 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in sharp_nt_panel_get_modes()
185 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in sharp_nt_panel_get_modes()
188 		return -ENOMEM;  in sharp_nt_panel_get_modes()
195 	connector->display_info.width_mm = 54;  in sharp_nt_panel_get_modes()
196 	connector->display_info.height_mm = 95;  in sharp_nt_panel_get_modes()
209 	struct device *dev = &sharp_nt->dsi->dev;  in sharp_nt_panel_add()
212 	sharp_nt->supply = devm_regulator_get(dev, "avdd");  in sharp_nt_panel_add()
213 	if (IS_ERR(sharp_nt->supply))  in sharp_nt_panel_add()
214 		return PTR_ERR(sharp_nt->supply);  in sharp_nt_panel_add()
216 	sharp_nt->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in sharp_nt_panel_add()
217 	if (IS_ERR(sharp_nt->reset_gpio)) {  in sharp_nt_panel_add()
218 		dev_err(dev, "cannot get reset-gpios %ld\n",  in sharp_nt_panel_add()
219 			PTR_ERR(sharp_nt->reset_gpio));  in sharp_nt_panel_add()
220 		sharp_nt->reset_gpio = NULL;  in sharp_nt_panel_add()
222 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_add()
225 	drm_panel_init(&sharp_nt->base, &sharp_nt->dsi->dev,  in sharp_nt_panel_add()
228 	ret = drm_panel_of_backlight(&sharp_nt->base);  in sharp_nt_panel_add()
232 	drm_panel_add(&sharp_nt->base);  in sharp_nt_panel_add()
239 	if (sharp_nt->base.dev)  in sharp_nt_panel_del()
240 		drm_panel_remove(&sharp_nt->base);  in sharp_nt_panel_del()
243 static int sharp_nt_panel_probe(struct mipi_dsi_device *dsi)  in sharp_nt_panel_probe()  argument
248 	dsi->lanes = 2;  in sharp_nt_panel_probe()
249 	dsi->format = MIPI_DSI_FMT_RGB888;  in sharp_nt_panel_probe()
250 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in sharp_nt_panel_probe()
256 	sharp_nt = devm_kzalloc(&dsi->dev, sizeof(*sharp_nt), GFP_KERNEL);  in sharp_nt_panel_probe()
258 		return -ENOMEM;  in sharp_nt_panel_probe()
260 	mipi_dsi_set_drvdata(dsi, sharp_nt);  in sharp_nt_panel_probe()
262 	sharp_nt->dsi = dsi;  in sharp_nt_panel_probe()
268 	ret = mipi_dsi_attach(dsi);  in sharp_nt_panel_probe()
277 static void sharp_nt_panel_remove(struct mipi_dsi_device *dsi)  in sharp_nt_panel_remove()  argument
279 	struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);  in sharp_nt_panel_remove()
282 	ret = drm_panel_disable(&sharp_nt->base);  in sharp_nt_panel_remove()
284 		dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);  in sharp_nt_panel_remove()
286 	ret = mipi_dsi_detach(dsi);  in sharp_nt_panel_remove()
288 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);  in sharp_nt_panel_remove()
293 static void sharp_nt_panel_shutdown(struct mipi_dsi_device *dsi)  in sharp_nt_panel_shutdown()  argument
295 	struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);  in sharp_nt_panel_shutdown()
297 	drm_panel_disable(&sharp_nt->base);  in sharp_nt_panel_shutdown()
301 	{ .compatible = "sharp,ls043t1le01-qhd", },
308 		.name = "panel-sharp-ls043t1le01-qhd",
318 MODULE_DESCRIPTION("Sharp LS043T1LE01 NT35565-based qHD (540x960) video mode panel driver");