1 // SPDX-License-Identifier: GPL-2.0
3  * Mantix MLAF057WE51 5.7" MIPI-DSI panel driver
5  * Copyright (C) Purism SPC 2020
11 #include <linux/media-bus-format.h>
22 #define DRV_NAME "panel-mantix-mlaf057we51"
50 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_init_sequence()
51 	struct device *dev = ctx->dev;  in mantix_init_sequence()
77 	struct device *dev = ctx->dev;  in mantix_enable()
83 		dev_err(ctx->dev, "Panel init sequence failed: %d\n", ret);  in mantix_enable()
111 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in mantix_disable()
116 		dev_err(ctx->dev, "Failed to turn off the display: %d\n", ret);  in mantix_disable()
120 		dev_err(ctx->dev, "Failed to enter sleep mode: %d\n", ret);  in mantix_disable()
130 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 1);  in mantix_unprepare()
132 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in mantix_unprepare()
134 	regulator_disable(ctx->avee);  in mantix_unprepare()
135 	regulator_disable(ctx->avdd);  in mantix_unprepare()
138 	regulator_disable(ctx->vddi);  in mantix_unprepare()
151 	dev_dbg(ctx->dev, "Resetting the panel\n");  in mantix_prepare()
152 	ret = regulator_enable(ctx->vddi);  in mantix_prepare()
154 		dev_err(ctx->dev, "Failed to enable vddi supply: %d\n", ret);  in mantix_prepare()
161 	ret = regulator_enable(ctx->avdd);  in mantix_prepare()
163 		dev_err(ctx->dev, "Failed to enable avdd supply: %d\n", ret);  in mantix_prepare()
169 	ret = regulator_enable(ctx->avee);  in mantix_prepare()
171 		dev_err(ctx->dev, "Failed to enable avee supply: %d\n", ret);  in mantix_prepare()
177 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in mantix_prepare()
178 	gpiod_set_value_cansleep(ctx->tp_rstn_gpio, 0);  in mantix_prepare()
188 	.hsync_start = 720 + 45,
189 	.hsync_end   = 720 + 45 + 14,
190 	.htotal	     = 720 + 45 + 14 + 25,
203 	.hsync_start = 720 + 45,
204 	.hsync_end   = 720 + 45 + 14,
205 	.htotal	     = 720 + 45 + 14 + 25,
226 	mode = drm_mode_duplicate(connector->dev, ctx->default_mode);  in mantix_get_modes()
228 		dev_err(ctx->dev, "Failed to add mode %ux%u@%u\n",  in mantix_get_modes()
229 			ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_get_modes()
230 			drm_mode_vrefresh(ctx->default_mode));  in mantix_get_modes()
231 		return -ENOMEM;  in mantix_get_modes()
236 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in mantix_get_modes()
237 	connector->display_info.width_mm = mode->width_mm;  in mantix_get_modes()
238 	connector->display_info.height_mm = mode->height_mm;  in mantix_get_modes()
241 	drm_display_info_set_bus_formats(&connector->display_info,  in mantix_get_modes()
258 	struct device *dev = &dsi->dev;  in mantix_probe()
264 		return -ENOMEM;  in mantix_probe()
265 	ctx->default_mode = of_device_get_match_data(dev);  in mantix_probe()
267 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);  in mantix_probe()
268 	if (IS_ERR(ctx->reset_gpio)) {  in mantix_probe()
270 		return PTR_ERR(ctx->reset_gpio);  in mantix_probe()
273 	ctx->tp_rstn_gpio = devm_gpiod_get(dev, "mantix,tp-rstn", GPIOD_OUT_HIGH);  in mantix_probe()
274 	if (IS_ERR(ctx->tp_rstn_gpio)) {  in mantix_probe()
275 		dev_err(dev, "cannot get tp-rstn gpio\n");  in mantix_probe()
276 		return PTR_ERR(ctx->tp_rstn_gpio);  in mantix_probe()
280 	ctx->dev = dev;  in mantix_probe()
282 	dsi->lanes = 4;  in mantix_probe()
283 	dsi->format = MIPI_DSI_FMT_RGB888;  in mantix_probe()
284 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |  in mantix_probe()
287 	ctx->avdd = devm_regulator_get(dev, "avdd");  in mantix_probe()
288 	if (IS_ERR(ctx->avdd))  in mantix_probe()
289 		return dev_err_probe(dev, PTR_ERR(ctx->avdd), "Failed to request avdd regulator\n");  in mantix_probe()
291 	ctx->avee = devm_regulator_get(dev, "avee");  in mantix_probe()
292 	if (IS_ERR(ctx->avee))  in mantix_probe()
293 		return dev_err_probe(dev, PTR_ERR(ctx->avee), "Failed to request avee regulator\n");  in mantix_probe()
295 	ctx->vddi = devm_regulator_get(dev, "vddi");  in mantix_probe()
296 	if (IS_ERR(ctx->vddi))  in mantix_probe()
297 		return dev_err_probe(dev, PTR_ERR(ctx->vddi), "Failed to request vddi regulator\n");  in mantix_probe()
299 	drm_panel_init(&ctx->panel, dev, &mantix_drm_funcs,  in mantix_probe()
302 	ret = drm_panel_of_backlight(&ctx->panel);  in mantix_probe()
306 	drm_panel_add(&ctx->panel);  in mantix_probe()
311 		drm_panel_remove(&ctx->panel);  in mantix_probe()
315 	dev_info(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",  in mantix_probe()
316 		 ctx->default_mode->hdisplay, ctx->default_mode->vdisplay,  in mantix_probe()
317 		 drm_mode_vrefresh(ctx->default_mode),  in mantix_probe()
318 		 mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);  in mantix_probe()
327 	drm_panel_unprepare(&ctx->panel);  in mantix_shutdown()
328 	drm_panel_disable(&ctx->panel);  in mantix_shutdown()
338 	drm_panel_remove(&ctx->panel);  in mantix_remove()
342 	{ .compatible = "mantix,mlaf057we51-x", .data = &default_mode_mantix },
360 MODULE_DESCRIPTION("DRM driver for Mantix MLAF057WE51-X MIPI DSI panel");