1 // SPDX-License-Identifier: GPL-2.0
3  * Mantix MLAF057WE51 5.7" MIPI-DSI panel driver
21 #define DRV_NAME "panel-mantix-mlaf057we51"
23 /* Manufacturer specific Commands send via DSI */
30 	struct drm_panel panel;  member
42 static inline struct mantix *panel_to_mantix(struct drm_panel *panel)  in panel_to_mantix()  argument
44 	return container_of(panel, struct mantix, panel);  in panel_to_mantix()
57 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_init_sequence()
58 	struct device *dev = ctx->dev;  in mantix_init_sequence()
61 	 * Init sequence was supplied by the panel vendor.  in mantix_init_sequence()
77 	dev_dbg(dev, "Panel init sequence done\n");  in mantix_init_sequence()
81 static int mantix_enable(struct drm_panel *panel)  in mantix_enable()  argument
83 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_enable()
84 	struct device *dev = ctx->dev;  in mantix_enable()
90 		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);  in mantix_enable()
115 static int mantix_disable(struct drm_panel *panel)  in mantix_disable()  argument
117 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_disable()
118 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_disable()
123 		dev_err(ctx->dev, "Failed to turn off the display: %d\n", ret);  in mantix_disable()
127 		dev_err(ctx->dev, "Failed to enter sleep mode: %d\n", ret);  in mantix_disable()
133 static int mantix_unprepare(struct drm_panel *panel)  in mantix_unprepare()  argument
135 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_unprepare()
137 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1);  in mantix_unprepare()
139 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in mantix_unprepare()
141 	regulator_disable(ctx->avee);  in mantix_unprepare()
142 	regulator_disable(ctx->avdd);  in mantix_unprepare()
145 	regulator_disable(ctx->vddi);  in mantix_unprepare()
152 static int mantix_prepare(struct drm_panel *panel)  in mantix_prepare()  argument
154 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_prepare()
158 	dev_dbg(ctx->dev, "Resetting the panel\n");  in mantix_prepare()
159 	ret = regulator_enable(ctx->vddi);  in mantix_prepare()
161 		dev_err(ctx->dev, "Failed to enable vddi supply: %d\n", ret);  in mantix_prepare()
168 	ret = regulator_enable(ctx->avdd);  in mantix_prepare()
170 		dev_err(ctx->dev, "Failed to enable avdd supply: %d\n", ret);  in mantix_prepare()
176 	ret = regulator_enable(ctx->avee);  in mantix_prepare()
178 		dev_err(ctx->dev, "Failed to enable avee supply: %d\n", ret);  in mantix_prepare()
184 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in mantix_prepare()
185 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 0);  in mantix_prepare()
223 static int mantix_get_modes(struct drm_panel *panel,  in mantix_get_modes()  argument
226 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_get_modes()
229 	mode = drm_mode_duplicate(connector->dev, ctx->default_mode);  in mantix_get_modes()
231 		dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",  in mantix_get_modes()
232 			ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_get_modes()
233 			drm_mode_vrefresh(ctx->default_mode));  in mantix_get_modes()
234 		return -ENOMEM;  in mantix_get_modes()
239 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in mantix_get_modes()
240 	connector->display_info.width_mm = mode->width_mm;  in mantix_get_modes()
241 	connector->display_info.height_mm = mode->height_mm;  in mantix_get_modes()
257 	struct device *dev = &dsi->dev;  in mantix_probe()
263 		return -ENOMEM;  in mantix_probe()
264 	ctx->default_mode = of_device_get_match_data(dev);  in mantix_probe()
266 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in mantix_probe()
267 	if (IS_ERR(ctx->reset_gpio)) {  in mantix_probe()
269 		return PTR_ERR(ctx->reset_gpio);  in mantix_probe()
272 	ctx->tp_rstn_gpio = devm_gpiod_get(dev, "mantix,tp-rstn", GPIOD_OUT_HIGH);  in mantix_probe()
273 	if (IS_ERR(ctx->tp_rstn_gpio)) {  in mantix_probe()
274 		dev_err(dev, "cannot get tp-rstn gpio\n");  in mantix_probe()
275 		return PTR_ERR(ctx->tp_rstn_gpio);  in mantix_probe()
279 	ctx->dev = dev;  in mantix_probe()
281 	dsi->lanes = 4;  in mantix_probe()
282 	dsi->format = MIPI_DSI_FMT_RGB888;  in mantix_probe()
283 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in mantix_probe()
286 	ctx->avdd = devm_regulator_get(dev, "avdd");  in mantix_probe()
287 	if (IS_ERR(ctx->avdd))  in mantix_probe()
288 		return dev_err_probe(dev, PTR_ERR(ctx->avdd), "Failed to request avdd regulator\n");  in mantix_probe()
290 	ctx->avee = devm_regulator_get(dev, "avee");  in mantix_probe()
291 	if (IS_ERR(ctx->avee))  in mantix_probe()
292 		return dev_err_probe(dev, PTR_ERR(ctx->avee), "Failed to request avee regulator\n");  in mantix_probe()
294 	ctx->vddi = devm_regulator_get(dev, "vddi");  in mantix_probe()
295 	if (IS_ERR(ctx->vddi))  in mantix_probe()
296 		return dev_err_probe(dev, PTR_ERR(ctx->vddi), "Failed to request vddi regulator\n");  in mantix_probe()
298 	drm_panel_init(&ctx->panel, dev, &mantix_drm_funcs,  in mantix_probe()
301 	ret = drm_panel_of_backlight(&ctx->panel);  in mantix_probe()
305 	drm_panel_add(&ctx->panel);  in mantix_probe()
310 		drm_panel_remove(&ctx->panel);  in mantix_probe()
314 	dev_info(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",  in mantix_probe()
315 		 ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_probe()
316 		 drm_mode_vrefresh(ctx->default_mode),  in mantix_probe()
317 		 mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);  in mantix_probe()
326 	drm_panel_unprepare(&ctx->panel);  in mantix_shutdown()
327 	drm_panel_disable(&ctx->panel);  in mantix_shutdown()
337 	drm_panel_remove(&ctx->panel);  in mantix_remove()
343 	{ .compatible = "mantix,mlaf057we51-x", .data = &default_mode_mantix },
361 MODULE_DESCRIPTION("DRM driver for Mantix MLAF057WE51-X MIPI DSI panel");