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
38 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_init()  local
41 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in sharp_nt_panel_init()
43 	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);  in sharp_nt_panel_init()
49 	/* Novatek two-lane operation */  in sharp_nt_panel_init()
50 	ret = mipi_dsi_dcs_write(dsi, 0xae, (u8[]){ 0x03 }, 1);  in sharp_nt_panel_init()
55 	ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT |  in sharp_nt_panel_init()
65 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_on()  local
68 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in sharp_nt_panel_on()
70 	ret = mipi_dsi_dcs_set_display_on(dsi);  in sharp_nt_panel_on()
79 	struct mipi_dsi_device *dsi = sharp_nt->dsi;  in sharp_nt_panel_off()  local
82 	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;  in sharp_nt_panel_off()
84 	ret = mipi_dsi_dcs_set_display_off(dsi);  in sharp_nt_panel_off()
88 	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);  in sharp_nt_panel_off()
102 		dev_err(panel->dev, "failed to set panel off: %d\n", ret);  in sharp_nt_panel_unprepare()
106 	regulator_disable(sharp_nt->supply);  in sharp_nt_panel_unprepare()
107 	if (sharp_nt->reset_gpio)  in sharp_nt_panel_unprepare()
108 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_unprepare()
118 	ret = regulator_enable(sharp_nt->supply);  in sharp_nt_panel_prepare()
124 	if (sharp_nt->reset_gpio) {  in sharp_nt_panel_prepare()
125 		gpiod_set_value(sharp_nt->reset_gpio, 1);  in sharp_nt_panel_prepare()
127 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_prepare()
129 		gpiod_set_value(sharp_nt->reset_gpio, 1);  in sharp_nt_panel_prepare()
135 		dev_err(panel->dev, "failed to init panel: %d\n", ret);  in sharp_nt_panel_prepare()
141 		dev_err(panel->dev, "failed to set panel on: %d\n", ret);  in sharp_nt_panel_prepare()
148 	regulator_disable(sharp_nt->supply);  in sharp_nt_panel_prepare()
149 	if (sharp_nt->reset_gpio)  in sharp_nt_panel_prepare()
150 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_prepare()
171 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in sharp_nt_panel_get_modes()
173 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in sharp_nt_panel_get_modes()
176 		return -ENOMEM;  in sharp_nt_panel_get_modes()
183 	connector->display_info.width_mm = 54;  in sharp_nt_panel_get_modes()
184 	connector->display_info.height_mm = 95;  in sharp_nt_panel_get_modes()
197 	struct device *dev = &sharp_nt->dsi->dev;  in sharp_nt_panel_add()
200 	sharp_nt->supply = devm_regulator_get(dev, "avdd");  in sharp_nt_panel_add()
201 	if (IS_ERR(sharp_nt->supply))  in sharp_nt_panel_add()
202 		return PTR_ERR(sharp_nt->supply);  in sharp_nt_panel_add()
204 	sharp_nt->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in sharp_nt_panel_add()
205 	if (IS_ERR(sharp_nt->reset_gpio)) {  in sharp_nt_panel_add()
206 		dev_err(dev, "cannot get reset-gpios %ld\n",  in sharp_nt_panel_add()
207 			PTR_ERR(sharp_nt->reset_gpio));  in sharp_nt_panel_add()
208 		sharp_nt->reset_gpio = NULL;  in sharp_nt_panel_add()
210 		gpiod_set_value(sharp_nt->reset_gpio, 0);  in sharp_nt_panel_add()
213 	drm_panel_init(&sharp_nt->base, &sharp_nt->dsi->dev,  in sharp_nt_panel_add()
216 	ret = drm_panel_of_backlight(&sharp_nt->base);  in sharp_nt_panel_add()
220 	drm_panel_add(&sharp_nt->base);  in sharp_nt_panel_add()
227 	if (sharp_nt->base.dev)  in sharp_nt_panel_del()
228 		drm_panel_remove(&sharp_nt->base);  in sharp_nt_panel_del()
231 static int sharp_nt_panel_probe(struct mipi_dsi_device *dsi)  in sharp_nt_panel_probe()  argument
236 	dsi->lanes = 2;  in sharp_nt_panel_probe()
237 	dsi->format = MIPI_DSI_FMT_RGB888;  in sharp_nt_panel_probe()
238 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in sharp_nt_panel_probe()
244 	sharp_nt = devm_kzalloc(&dsi->dev, sizeof(*sharp_nt), GFP_KERNEL);  in sharp_nt_panel_probe()
246 		return -ENOMEM;  in sharp_nt_panel_probe()
248 	mipi_dsi_set_drvdata(dsi, sharp_nt);  in sharp_nt_panel_probe()
250 	sharp_nt->dsi = dsi;  in sharp_nt_panel_probe()
256 	ret = mipi_dsi_attach(dsi);  in sharp_nt_panel_probe()
265 static void sharp_nt_panel_remove(struct mipi_dsi_device *dsi)  in sharp_nt_panel_remove()  argument
267 	struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);  in sharp_nt_panel_remove()
270 	ret = mipi_dsi_detach(dsi);  in sharp_nt_panel_remove()
272 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);  in sharp_nt_panel_remove()
278 	{ .compatible = "sharp,ls043t1le01-qhd", },
285 		.name = "panel-sharp-ls043t1le01-qhd",
294 MODULE_DESCRIPTION("Sharp LS043T1LE01 NT35565-based qHD (540x960) video mode panel driver");