1 // SPDX-License-Identifier: GPL-2.0
3  * Mantix MLAF057WE51 5.7" MIPI-DSI panel driver
11 #include <linux/media-bus-format.h>
22 #define DRV_NAME "panel-mantix-mlaf057we51"
24 /* Manufacturer specific Commands send via DSI */
31 	struct drm_panel panel;  member
43 static inline struct mantix *panel_to_mantix(struct drm_panel *panel)  in panel_to_mantix()  argument
45 	return container_of(panel, struct mantix, panel);  in panel_to_mantix()
51 	 * Init sequence was supplied by the panel vendor.  in mantix_init_sequence()
68 static int mantix_enable(struct drm_panel *panel)  in mantix_enable()  argument
70 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_enable()
71 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_enable()  local
72 	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };  in mantix_enable()
76 		dev_dbg(ctx->dev, "Panel init sequence done\n");  in mantix_enable()
89 static int mantix_disable(struct drm_panel *panel)  in mantix_disable()  argument
91 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_disable()
92 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_disable()  local
93 	struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };  in mantix_disable()
101 static int mantix_unprepare(struct drm_panel *panel)  in mantix_unprepare()  argument
103 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_unprepare()
105 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1);  in mantix_unprepare()
107 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in mantix_unprepare()
109 	regulator_disable(ctx->avee);  in mantix_unprepare()
110 	regulator_disable(ctx->avdd);  in mantix_unprepare()
113 	regulator_disable(ctx->vddi);  in mantix_unprepare()
120 static int mantix_prepare(struct drm_panel *panel)  in mantix_prepare()  argument
122 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_prepare()
126 	dev_dbg(ctx->dev, "Resetting the panel\n");  in mantix_prepare()
127 	ret = regulator_enable(ctx->vddi);  in mantix_prepare()
129 		dev_err(ctx->dev, "Failed to enable vddi supply: %d\n", ret);  in mantix_prepare()
136 	ret = regulator_enable(ctx->avdd);  in mantix_prepare()
138 		dev_err(ctx->dev, "Failed to enable avdd supply: %d\n", ret);  in mantix_prepare()
144 	ret = regulator_enable(ctx->avee);  in mantix_prepare()
146 		dev_err(ctx->dev, "Failed to enable avee supply: %d\n", ret);  in mantix_prepare()
152 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in mantix_prepare()
153 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 0);  in mantix_prepare()
195 static int mantix_get_modes(struct drm_panel *panel,  in mantix_get_modes()  argument
198 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_get_modes()
201 	mode = drm_mode_duplicate(connector->dev, ctx->default_mode);  in mantix_get_modes()
203 		dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",  in mantix_get_modes()
204 			ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_get_modes()
205 			drm_mode_vrefresh(ctx->default_mode));  in mantix_get_modes()
206 		return -ENOMEM;  in mantix_get_modes()
211 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in mantix_get_modes()
212 	connector->display_info.width_mm = mode->width_mm;  in mantix_get_modes()
213 	connector->display_info.height_mm = mode->height_mm;  in mantix_get_modes()
216 	drm_display_info_set_bus_formats(&connector->display_info,  in mantix_get_modes()
231 static int mantix_probe(struct mipi_dsi_device *dsi)  in mantix_probe()  argument
233 	struct device *dev = &dsi->dev;  in mantix_probe()
239 		return -ENOMEM;  in mantix_probe()
240 	ctx->default_mode = of_device_get_match_data(dev);  in mantix_probe()
242 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in mantix_probe()
243 	if (IS_ERR(ctx->reset_gpio)) {  in mantix_probe()
245 		return PTR_ERR(ctx->reset_gpio);  in mantix_probe()
248 	ctx->tp_rstn_gpio = devm_gpiod_get(dev, "mantix,tp-rstn", GPIOD_OUT_HIGH);  in mantix_probe()
249 	if (IS_ERR(ctx->tp_rstn_gpio)) {  in mantix_probe()
250 		dev_err(dev, "cannot get tp-rstn gpio\n");  in mantix_probe()
251 		return PTR_ERR(ctx->tp_rstn_gpio);  in mantix_probe()
254 	mipi_dsi_set_drvdata(dsi, ctx);  in mantix_probe()
255 	ctx->dev = dev;  in mantix_probe()
257 	dsi->lanes = 4;  in mantix_probe()
258 	dsi->format = MIPI_DSI_FMT_RGB888;  in mantix_probe()
259 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in mantix_probe()
262 	ctx->avdd = devm_regulator_get(dev, "avdd");  in mantix_probe()
263 	if (IS_ERR(ctx->avdd))  in mantix_probe()
264 		return dev_err_probe(dev, PTR_ERR(ctx->avdd), "Failed to request avdd regulator\n");  in mantix_probe()
266 	ctx->avee = devm_regulator_get(dev, "avee");  in mantix_probe()
267 	if (IS_ERR(ctx->avee))  in mantix_probe()
268 		return dev_err_probe(dev, PTR_ERR(ctx->avee), "Failed to request avee regulator\n");  in mantix_probe()
270 	ctx->vddi = devm_regulator_get(dev, "vddi");  in mantix_probe()
271 	if (IS_ERR(ctx->vddi))  in mantix_probe()
272 		return dev_err_probe(dev, PTR_ERR(ctx->vddi), "Failed to request vddi regulator\n");  in mantix_probe()
274 	drm_panel_init(&ctx->panel, dev, &mantix_drm_funcs,  in mantix_probe()
277 	ret = drm_panel_of_backlight(&ctx->panel);  in mantix_probe()
281 	drm_panel_add(&ctx->panel);  in mantix_probe()
283 	ret = mipi_dsi_attach(dsi);  in mantix_probe()
286 		drm_panel_remove(&ctx->panel);  in mantix_probe()
290 	dev_info(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",  in mantix_probe()
291 		 ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_probe()
292 		 drm_mode_vrefresh(ctx->default_mode),  in mantix_probe()
293 		 mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);  in mantix_probe()
298 static void mantix_shutdown(struct mipi_dsi_device *dsi)  in mantix_shutdown()  argument
300 	struct mantix *ctx = mipi_dsi_get_drvdata(dsi);  in mantix_shutdown()
302 	drm_panel_unprepare(&ctx->panel);  in mantix_shutdown()
303 	drm_panel_disable(&ctx->panel);  in mantix_shutdown()
306 static void mantix_remove(struct mipi_dsi_device *dsi)  in mantix_remove()  argument
308 	struct mantix *ctx = mipi_dsi_get_drvdata(dsi);  in mantix_remove()
310 	mantix_shutdown(dsi);  in mantix_remove()
312 	mipi_dsi_detach(dsi);  in mantix_remove()
313 	drm_panel_remove(&ctx->panel);  in mantix_remove()
317 	{ .compatible = "mantix,mlaf057we51-x", .data = &default_mode_mantix },
335 MODULE_DESCRIPTION("DRM driver for Mantix MLAF057WE51-X MIPI DSI panel");