1 // SPDX-License-Identifier: GPL-2.0
3  * Mantix MLAF057WE51 5.7" MIPI-DSI panel driver
20 #define DRV_NAME "panel-mantix-mlaf057we51"
35 	struct regulator *vddi;  member
53 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_init_sequence()
54 	struct device *dev = ctx->dev;  in mantix_init_sequence()
76 	struct device *dev = ctx->dev;  in mantix_enable()
82 		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);  in mantix_enable()
110 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_disable()
115 		dev_err(ctx->dev, "Failed to turn off the display: %d\n", ret);  in mantix_disable()
119 		dev_err(ctx->dev, "Failed to enter sleep mode: %d\n", ret);  in mantix_disable()
129 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1);  in mantix_unprepare()
131 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in mantix_unprepare()
133 	regulator_disable(ctx->avee);  in mantix_unprepare()
134 	regulator_disable(ctx->avdd);  in mantix_unprepare()
137 	regulator_disable(ctx->vddi);  in mantix_unprepare()
150 	dev_dbg(ctx->dev, "Resetting the panel\n");  in mantix_prepare()
151 	ret = regulator_enable(ctx->vddi);  in mantix_prepare()
153 		dev_err(ctx->dev, "Failed to enable vddi supply: %d\n", ret);  in mantix_prepare()
160 	ret = regulator_enable(ctx->avdd);  in mantix_prepare()
162 		dev_err(ctx->dev, "Failed to enable avdd supply: %d\n", ret);  in mantix_prepare()
168 	ret = regulator_enable(ctx->avee);  in mantix_prepare()
170 		dev_err(ctx->dev, "Failed to enable avee supply: %d\n", ret);  in mantix_prepare()
176 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in mantix_prepare()
177 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 0);  in mantix_prepare()
206 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in mantix_get_modes()
208 		dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",  in mantix_get_modes()
211 		return -ENOMEM;  in mantix_get_modes()
216 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in mantix_get_modes()
217 	connector->display_info.width_mm = mode->width_mm;  in mantix_get_modes()
218 	connector->display_info.height_mm = mode->height_mm;  in mantix_get_modes()
234 	struct device *dev = &dsi->dev;  in mantix_probe()
240 		return -ENOMEM;  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()
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()
286 		drm_panel_remove(&ctx->panel);  in mantix_probe()
290 	dev_info(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",  in mantix_probe()
293 		 mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);  in mantix_probe()
302 	drm_panel_unprepare(&ctx->panel);  in mantix_shutdown()
303 	drm_panel_disable(&ctx->panel);  in mantix_shutdown()
313 	drm_panel_remove(&ctx->panel);  in mantix_remove()
319 	{ .compatible = "mantix,mlaf057we51-x" },
336 MODULE_DESCRIPTION("DRM driver for Mantix MLAF057WE51-X MIPI DSI panel");