1 // SPDX-License-Identifier: GPL-2.0-only
33 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in s6e88a0_ams452ef01_reset()
35 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in s6e88a0_ams452ef01_reset()
37 	gpiod_set_value_cansleep(ctx->reset_gpio, 1);  in s6e88a0_ams452ef01_reset()
43 	struct mipi_dsi_device *dsi = ctx->dsi;  in s6e88a0_ams452ef01_on()
44 	struct device *dev = &dsi->dev;  in s6e88a0_ams452ef01_on()
47 	dsi->mode_flags |= MIPI_DSI_MODE_LPM;  in s6e88a0_ams452ef01_on()
89 	struct mipi_dsi_device *dsi = ctx->dsi;  in s6e88a0_ams452ef01_off()
90 	struct device *dev = &dsi->dev;  in s6e88a0_ams452ef01_off()
93 	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;  in s6e88a0_ams452ef01_off()
115 	struct device *dev = &ctx->dsi->dev;  in s6e88a0_ams452ef01_prepare()
118 	if (ctx->prepared)  in s6e88a0_ams452ef01_prepare()
121 	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in s6e88a0_ams452ef01_prepare()
132 		gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in s6e88a0_ams452ef01_prepare()
133 		regulator_bulk_disable(ARRAY_SIZE(ctx->supplies),  in s6e88a0_ams452ef01_prepare()
134 				       ctx->supplies);  in s6e88a0_ams452ef01_prepare()
138 	ctx->prepared = true;  in s6e88a0_ams452ef01_prepare()
145 	struct device *dev = &ctx->dsi->dev;  in s6e88a0_ams452ef01_unprepare()
148 	if (!ctx->prepared)  in s6e88a0_ams452ef01_unprepare()
153 		dev_err(dev, "Failed to un-initialize panel: %d\n", ret);  in s6e88a0_ams452ef01_unprepare()
155 	gpiod_set_value_cansleep(ctx->reset_gpio, 0);  in s6e88a0_ams452ef01_unprepare()
156 	regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in s6e88a0_ams452ef01_unprepare()
158 	ctx->prepared = false;  in s6e88a0_ams452ef01_unprepare()
181 	mode = drm_mode_duplicate(connector->dev, &s6e88a0_ams452ef01_mode);  in s6e88a0_ams452ef01_get_modes()
183 		return -ENOMEM;  in s6e88a0_ams452ef01_get_modes()
187 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in s6e88a0_ams452ef01_get_modes()
188 	connector->display_info.width_mm = mode->width_mm;  in s6e88a0_ams452ef01_get_modes()
189 	connector->display_info.height_mm = mode->height_mm;  in s6e88a0_ams452ef01_get_modes()
203 	struct device *dev = &dsi->dev;  in s6e88a0_ams452ef01_probe()
209 		return -ENOMEM;  in s6e88a0_ams452ef01_probe()
211 	ctx->supplies[0].supply = "vdd3";  in s6e88a0_ams452ef01_probe()
212 	ctx->supplies[1].supply = "vci";  in s6e88a0_ams452ef01_probe()
213 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),  in s6e88a0_ams452ef01_probe()
214 				      ctx->supplies);  in s6e88a0_ams452ef01_probe()
220 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in s6e88a0_ams452ef01_probe()
221 	if (IS_ERR(ctx->reset_gpio)) {  in s6e88a0_ams452ef01_probe()
222 		ret = PTR_ERR(ctx->reset_gpio);  in s6e88a0_ams452ef01_probe()
223 		dev_err(dev, "Failed to get reset-gpios: %d\n", ret);  in s6e88a0_ams452ef01_probe()
227 	ctx->dsi = dsi;  in s6e88a0_ams452ef01_probe()
230 	dsi->lanes = 2;  in s6e88a0_ams452ef01_probe()
231 	dsi->format = MIPI_DSI_FMT_RGB888;  in s6e88a0_ams452ef01_probe()
232 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST;  in s6e88a0_ams452ef01_probe()
234 	drm_panel_init(&ctx->panel, dev, &s6e88a0_ams452ef01_panel_funcs,  in s6e88a0_ams452ef01_probe()
237 	drm_panel_add(&ctx->panel);  in s6e88a0_ams452ef01_probe()
242 		drm_panel_remove(&ctx->panel);  in s6e88a0_ams452ef01_probe()
256 		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);  in s6e88a0_ams452ef01_remove()
258 	drm_panel_remove(&ctx->panel);  in s6e88a0_ams452ef01_remove()
262 	{ .compatible = "samsung,s6e88a0-ams452ef01" },
271 		.name = "panel-s6e88a0-ams452ef01",
278 MODULE_DESCRIPTION("MIPI-DSI based Panel Driver for AMS452EF01 AMOLED LCD with a S6E88A0 controller…