1 // SPDX-License-Identifier: GPL-2.0-only
3  * MIPI-DSI based S6E63J0X03 AMOLED lcd 1.63 inch panel driver.
5  * Copyright (c) 2014-2017 Samsung Electronics Co., Ltd
58 	{	/* Gamma 10 */
122 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e63j0x03_dcs_write_seq()
151 	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in s6e63j0x03_power_on()
157 	gpiod_set_value(ctx->reset_gpio, 1);  in s6e63j0x03_power_on()
159 	gpiod_set_value(ctx->reset_gpio, 0);  in s6e63j0x03_power_on()
167 	return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in s6e63j0x03_power_off()
177 		index = NUM_GAMMA_STEPS - 1;  in s6e63j0x03_get_brightness_index()
185 	struct backlight_device *bl_dev = ctx->bl_dev;  in s6e63j0x03_update_gamma()
201 	bl_dev->props.brightness = brightness;  in s6e63j0x03_update_gamma()
209 	unsigned int brightness = bl_dev->props.brightness;  in s6e63j0x03_set_brightness()
221 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e63j0x03_disable()
228 	ctx->bl_dev->props.power = BACKLIGHT_POWER_REDUCED;  in s6e63j0x03_disable()
248 	ctx->bl_dev->props.power = BACKLIGHT_POWER_OFF;  in s6e63j0x03_unprepare()
255 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e63j0x03_panel_init()
278 		default_mode.hdisplay - 1 + FIRST_COLUMN);  in s6e63j0x03_panel_init()
282 	ret = mipi_dsi_dcs_set_page_address(dsi, 0, default_mode.vdisplay - 1);  in s6e63j0x03_panel_init()
335 	ctx->bl_dev->props.power = BACKLIGHT_POWER_REDUCED;  in s6e63j0x03_prepare()
347 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e63j0x03_enable()
396 	ctx->bl_dev->props.power = BACKLIGHT_POWER_ON;  in s6e63j0x03_enable()
406 	mode = drm_mode_duplicate(connector->dev, &default_mode);  in s6e63j0x03_get_modes()
408 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in s6e63j0x03_get_modes()
411 		return -ENOMEM;  in s6e63j0x03_get_modes()
416 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in s6e63j0x03_get_modes()
419 	connector->display_info.width_mm = 29;  in s6e63j0x03_get_modes()
420 	connector->display_info.height_mm = 29;  in s6e63j0x03_get_modes()
435 	struct device *dev = &dsi->dev;  in s6e63j0x03_probe()
441 		return -ENOMEM;  in s6e63j0x03_probe()
445 	ctx->dev = dev;  in s6e63j0x03_probe()
447 	dsi->lanes = 1;  in s6e63j0x03_probe()
448 	dsi->format = MIPI_DSI_FMT_RGB888;  in s6e63j0x03_probe()
449 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO_NO_HFP |  in s6e63j0x03_probe()
452 	ctx->supplies[0].supply = "vdd3";  in s6e63j0x03_probe()
453 	ctx->supplies[1].supply = "vci";  in s6e63j0x03_probe()
454 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),  in s6e63j0x03_probe()
455 				      ctx->supplies);  in s6e63j0x03_probe()
459 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in s6e63j0x03_probe()
460 	if (IS_ERR(ctx->reset_gpio))  in s6e63j0x03_probe()
461 		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),  in s6e63j0x03_probe()
462 				     "cannot get reset-gpio\n");  in s6e63j0x03_probe()
464 	drm_panel_init(&ctx->panel, dev, &s6e63j0x03_funcs,  in s6e63j0x03_probe()
466 	ctx->panel.prepare_prev_first = true;  in s6e63j0x03_probe()
468 	ctx->bl_dev = backlight_device_register("s6e63j0x03", dev, ctx,  in s6e63j0x03_probe()
470 	if (IS_ERR(ctx->bl_dev))  in s6e63j0x03_probe()
471 		return dev_err_probe(dev, PTR_ERR(ctx->bl_dev),  in s6e63j0x03_probe()
474 	ctx->bl_dev->props.max_brightness = MAX_BRIGHTNESS;  in s6e63j0x03_probe()
475 	ctx->bl_dev->props.brightness = DEFAULT_BRIGHTNESS;  in s6e63j0x03_probe()
476 	ctx->bl_dev->props.power = BACKLIGHT_POWER_OFF;  in s6e63j0x03_probe()
478 	drm_panel_add(&ctx->panel);  in s6e63j0x03_probe()
487 	drm_panel_remove(&ctx->panel);  in s6e63j0x03_probe()
488 	backlight_device_unregister(ctx->bl_dev);  in s6e63j0x03_probe()
498 	drm_panel_remove(&ctx->panel);  in s6e63j0x03_remove()
500 	backlight_device_unregister(ctx->bl_dev);  in s6e63j0x03_remove()
521 MODULE_DESCRIPTION("MIPI-DSI based s6e63j0x03 AMOLED LCD Panel Driver");