1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright (C) 2019-2024 Linaro Ltd
44 	struct mipi_dsi_multi_context ctx = { .dsi = sw43408->link };  in sw43408_unprepare()
53 	gpiod_set_value(sw43408->reset_gpio, 1);  in sw43408_unprepare()
55 	ret = regulator_bulk_disable(ARRAY_SIZE(sw43408->supplies), sw43408->supplies);  in sw43408_unprepare()
63 	struct mipi_dsi_multi_context ctx = { .dsi = sw43408->link };  in sw43408_program()
104 	sw43408->link->mode_flags &= ~MIPI_DSI_MODE_LPM;  in sw43408_program()
106 	drm_dsc_pps_payload_pack(&pps, sw43408->link->dsc);  in sw43408_program()
110 	sw43408->link->mode_flags |= MIPI_DSI_MODE_LPM;  in sw43408_program()
127 	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in sw43408_prepare()
133 	gpiod_set_value(ctx->reset_gpio, 0);  in sw43408_prepare()
135 	gpiod_set_value(ctx->reset_gpio, 1);  in sw43408_prepare()
137 	gpiod_set_value(ctx->reset_gpio, 0);  in sw43408_prepare()
147 	gpiod_set_value(ctx->reset_gpio, 1);  in sw43408_prepare()
148 	regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in sw43408_prepare()
191 	struct device *dev = &ctx->link->dev;  in sw43408_backlight_init()
198 	ctx->base.backlight = devm_backlight_device_register(dev, dev_name(dev), dev,  in sw43408_backlight_init()
199 							     ctx->link,  in sw43408_backlight_init()
203 	if (IS_ERR(ctx->base.backlight))  in sw43408_backlight_init()
204 		return dev_err_probe(dev, PTR_ERR(ctx->base.backlight),  in sw43408_backlight_init()
224 	struct device *dev = &ctx->link->dev;  in sw43408_add()
227 	ctx->supplies[0].supply = "vddi"; /* 1.88 V */  in sw43408_add()
228 	ctx->supplies[0].init_load_uA = 62000;  in sw43408_add()
229 	ctx->supplies[1].supply = "vpnl"; /* 3.0 V */  in sw43408_add()
230 	ctx->supplies[1].init_load_uA = 857000;  in sw43408_add()
232 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),  in sw43408_add()
233 				      ctx->supplies);  in sw43408_add()
237 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in sw43408_add()
238 	if (IS_ERR(ctx->reset_gpio)) {  in sw43408_add()
239 		ret = PTR_ERR(ctx->reset_gpio);  in sw43408_add()
247 	ctx->base.prepare_prev_first = true;  in sw43408_add()
249 	drm_panel_init(&ctx->base, dev, &sw43408_funcs, DRM_MODE_CONNECTOR_DSI);  in sw43408_add()
251 	drm_panel_add(&ctx->base);  in sw43408_add()
260 	ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);  in sw43408_probe()
262 		return -ENOMEM;  in sw43408_probe()
264 	dsi->mode_flags = MIPI_DSI_MODE_LPM;  in sw43408_probe()
265 	dsi->format = MIPI_DSI_FMT_RGB888;  in sw43408_probe()
266 	dsi->lanes = 4;  in sw43408_probe()
268 	ctx->link = dsi;  in sw43408_probe()
276 	ctx->dsc.dsc_version_major = 0x1;  in sw43408_probe()
277 	ctx->dsc.dsc_version_minor = 0x1;  in sw43408_probe()
280 	ctx->dsc.slice_height = 16;  in sw43408_probe()
281 	ctx->dsc.slice_width = 540;  in sw43408_probe()
282 	ctx->dsc.slice_count = 2;  in sw43408_probe()
283 	ctx->dsc.bits_per_component = 8;  in sw43408_probe()
284 	ctx->dsc.bits_per_pixel = 8 << 4;  in sw43408_probe()
285 	ctx->dsc.block_pred_enable = true;  in sw43408_probe()
287 	dsi->dsc = &ctx->dsc;  in sw43408_probe()
297 	ret = sw43408_unprepare(&ctx->base);  in sw43408_remove()
299 		dev_err(&dsi->dev, "failed to unprepare panel: %d\n", ret);  in sw43408_remove()
303 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);  in sw43408_remove()
305 	drm_panel_remove(&ctx->base);  in sw43408_remove()
310 		.name = "panel-lg-sw43408",
319 MODULE_DESCRIPTION("LG SW436408 MIPI-DSI LED panel");