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()
58 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_init_sequence()
59 	struct device *dev = ctx->dev;  in mantix_init_sequence()
62 	 * Init sequence was supplied by the panel vendor.  in mantix_init_sequence()
78 	dev_dbg(dev, "Panel init sequence done\n");  in mantix_init_sequence()
82 static int mantix_enable(struct drm_panel *panel)  in mantix_enable()  argument
84 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_enable()
85 	struct device *dev = ctx->dev;  in mantix_enable()
91 		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);  in mantix_enable()
116 static int mantix_disable(struct drm_panel *panel)  in mantix_disable()  argument
118 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_disable()
119 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_disable()
124 		dev_err(ctx->dev, "Failed to turn off the display: %d\n", ret);  in mantix_disable()
128 		dev_err(ctx->dev, "Failed to enter sleep mode: %d\n", ret);  in mantix_disable()
134 static int mantix_unprepare(struct drm_panel *panel)  in mantix_unprepare()  argument
136 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_unprepare()
138 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1);  in mantix_unprepare()
140 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in mantix_unprepare()
142 	regulator_disable(ctx->avee);  in mantix_unprepare()
143 	regulator_disable(ctx->avdd);  in mantix_unprepare()
146 	regulator_disable(ctx->vddi);  in mantix_unprepare()
153 static int mantix_prepare(struct drm_panel *panel)  in mantix_prepare()  argument
155 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_prepare()
159 	dev_dbg(ctx->dev, "Resetting the panel\n");  in mantix_prepare()
160 	ret = regulator_enable(ctx->vddi);  in mantix_prepare()
162 		dev_err(ctx->dev, "Failed to enable vddi supply: %d\n", ret);  in mantix_prepare()
169 	ret = regulator_enable(ctx->avdd);  in mantix_prepare()
171 		dev_err(ctx->dev, "Failed to enable avdd supply: %d\n", ret);  in mantix_prepare()
177 	ret = regulator_enable(ctx->avee);  in mantix_prepare()
179 		dev_err(ctx->dev, "Failed to enable avee supply: %d\n", ret);  in mantix_prepare()
185 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in mantix_prepare()
186 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 0);  in mantix_prepare()
228 static int mantix_get_modes(struct drm_panel *panel,  in mantix_get_modes()  argument
231 	struct mantix *ctx = panel_to_mantix(panel);  in mantix_get_modes()
234 	mode = drm_mode_duplicate(connector->dev, ctx->default_mode);  in mantix_get_modes()
236 		dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",  in mantix_get_modes()
237 			ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_get_modes()
238 			drm_mode_vrefresh(ctx->default_mode));  in mantix_get_modes()
239 		return -ENOMEM;  in mantix_get_modes()
244 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in mantix_get_modes()
245 	connector->display_info.width_mm = mode->width_mm;  in mantix_get_modes()
246 	connector->display_info.height_mm = mode->height_mm;  in mantix_get_modes()
249 	drm_display_info_set_bus_formats(&connector->display_info,  in mantix_get_modes()
266 	struct device *dev = &dsi->dev;  in mantix_probe()
272 		return -ENOMEM;  in mantix_probe()
273 	ctx->default_mode = of_device_get_match_data(dev);  in mantix_probe()
275 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in mantix_probe()
276 	if (IS_ERR(ctx->reset_gpio)) {  in mantix_probe()
278 		return PTR_ERR(ctx->reset_gpio);  in mantix_probe()
281 	ctx->tp_rstn_gpio = devm_gpiod_get(dev, "mantix,tp-rstn", GPIOD_OUT_HIGH);  in mantix_probe()
282 	if (IS_ERR(ctx->tp_rstn_gpio)) {  in mantix_probe()
283 		dev_err(dev, "cannot get tp-rstn gpio\n");  in mantix_probe()
284 		return PTR_ERR(ctx->tp_rstn_gpio);  in mantix_probe()
288 	ctx->dev = dev;  in mantix_probe()
290 	dsi->lanes = 4;  in mantix_probe()
291 	dsi->format = MIPI_DSI_FMT_RGB888;  in mantix_probe()
292 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in mantix_probe()
295 	ctx->avdd = devm_regulator_get(dev, "avdd");  in mantix_probe()
296 	if (IS_ERR(ctx->avdd))  in mantix_probe()
297 		return dev_err_probe(dev, PTR_ERR(ctx->avdd), "Failed to request avdd regulator\n");  in mantix_probe()
299 	ctx->avee = devm_regulator_get(dev, "avee");  in mantix_probe()
300 	if (IS_ERR(ctx->avee))  in mantix_probe()
301 		return dev_err_probe(dev, PTR_ERR(ctx->avee), "Failed to request avee regulator\n");  in mantix_probe()
303 	ctx->vddi = devm_regulator_get(dev, "vddi");  in mantix_probe()
304 	if (IS_ERR(ctx->vddi))  in mantix_probe()
305 		return dev_err_probe(dev, PTR_ERR(ctx->vddi), "Failed to request vddi regulator\n");  in mantix_probe()
307 	drm_panel_init(&ctx->panel, dev, &mantix_drm_funcs,  in mantix_probe()
310 	ret = drm_panel_of_backlight(&ctx->panel);  in mantix_probe()
314 	drm_panel_add(&ctx->panel);  in mantix_probe()
319 		drm_panel_remove(&ctx->panel);  in mantix_probe()
323 	dev_info(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",  in mantix_probe()
324 		 ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_probe()
325 		 drm_mode_vrefresh(ctx->default_mode),  in mantix_probe()
326 		 mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);  in mantix_probe()
335 	drm_panel_unprepare(&ctx->panel);  in mantix_shutdown()
336 	drm_panel_disable(&ctx->panel);  in mantix_shutdown()
346 	drm_panel_remove(&ctx->panel);  in mantix_remove()
350 	{ .compatible = "mantix,mlaf057we51-x", .data = &default_mode_mantix },
368 MODULE_DESCRIPTION("DRM driver for Mantix MLAF057WE51-X MIPI DSI panel");