1 // SPDX-License-Identifier: GPL-2.0-only
3  * MIPI-DSI based s6e3ha2 AMOLED 5.7 inch panel driver.
246 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e3ha2_dcs_write()
299 	if (ctx->desc->type == HF2_TYPE)  in s6e3ha2_freq_calibration()
305 	if (ctx->desc->type == HA2_TYPE)  in s6e3ha2_freq_calibration()
412 	return bl_dev->props.brightness;  in s6e3ha2_get_brightness()
417 	struct backlight_device *bl_dev = ctx->bl_dev;  in s6e3ha2_set_vint()
418 	unsigned int brightness = bl_dev->props.brightness;  in s6e3ha2_set_vint()
420 			vint_table[brightness * (S6E3HA2_VINT_STATUS_MAX - 1) /  in s6e3ha2_set_vint()
428 	return (brightness * (S6E3HA2_NUM_GAMMA_STEPS - 1)) /  in s6e3ha2_get_brightness_index()
434 	struct backlight_device *bl_dev = ctx->bl_dev;  in s6e3ha2_update_gamma()
444 	bl_dev->props.brightness = brightness;  in s6e3ha2_update_gamma()
452 	unsigned int brightness = bl_dev->props.brightness;  in s6e3ha2_set_brightness()
456 		brightness > bl_dev->props.max_brightness) {  in s6e3ha2_set_brightness()
457 		dev_err(ctx->dev, "Invalid brightness: %u\n", brightness);  in s6e3ha2_set_brightness()
458 		return -EINVAL;  in s6e3ha2_set_brightness()
461 	if (bl_dev->props.power > BACKLIGHT_POWER_REDUCED)  in s6e3ha2_set_brightness()
462 		return -EPERM;  in s6e3ha2_set_brightness()
480 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e3ha2_panel_init()
498 	return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in s6e3ha2_power_off()
504 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e3ha2_disable()
511 	ctx->bl_dev->props.power = BACKLIGHT_POWER_REDUCED;  in s6e3ha2_disable()
527 	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);  in s6e3ha2_power_on()
533 	gpiod_set_value(ctx->enable_gpio, 0);  in s6e3ha2_power_on()
535 	gpiod_set_value(ctx->enable_gpio, 1);  in s6e3ha2_power_on()
537 	gpiod_set_value(ctx->reset_gpio, 1);  in s6e3ha2_power_on()
539 	gpiod_set_value(ctx->reset_gpio, 0);  in s6e3ha2_power_on()
557 	ctx->bl_dev->props.power = BACKLIGHT_POWER_REDUCED;  in s6e3ha2_prepare()
569 	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);  in s6e3ha2_enable()
590 	s6e3ha2_call_write_func(ret, s6e3ha2_set_brightness(ctx->bl_dev));  in s6e3ha2_enable()
598 	/* elvss temp compensation */  in s6e3ha2_enable()
604 	ctx->bl_dev->props.power = BACKLIGHT_POWER_ON;  in s6e3ha2_enable()
651 	mode = drm_mode_duplicate(connector->dev, ctx->desc->mode);  in s6e3ha2_get_modes()
653 		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",  in s6e3ha2_get_modes()
654 			ctx->desc->mode->hdisplay, ctx->desc->mode->vdisplay,  in s6e3ha2_get_modes()
655 			drm_mode_vrefresh(ctx->desc->mode));  in s6e3ha2_get_modes()
656 		return -ENOMEM;  in s6e3ha2_get_modes()
661 	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;  in s6e3ha2_get_modes()
664 	connector->display_info.width_mm = 71;  in s6e3ha2_get_modes()
665 	connector->display_info.height_mm = 125;  in s6e3ha2_get_modes()
680 	struct device *dev = &dsi->dev;  in s6e3ha2_probe()
686 		return -ENOMEM;  in s6e3ha2_probe()
690 	ctx->dev = dev;  in s6e3ha2_probe()
691 	ctx->desc = of_device_get_match_data(dev);  in s6e3ha2_probe()
693 	dsi->lanes = 4;  in s6e3ha2_probe()
694 	dsi->format = MIPI_DSI_FMT_RGB888;  in s6e3ha2_probe()
695 	dsi->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS |  in s6e3ha2_probe()
699 	ctx->supplies[0].supply = "vdd3";  in s6e3ha2_probe()
700 	ctx->supplies[1].supply = "vci";  in s6e3ha2_probe()
702 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),  in s6e3ha2_probe()
703 				      ctx->supplies);  in s6e3ha2_probe()
709 	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);  in s6e3ha2_probe()
710 	if (IS_ERR(ctx->reset_gpio)) {  in s6e3ha2_probe()
711 		dev_err(dev, "cannot get reset-gpios %ld\n",  in s6e3ha2_probe()
712 			PTR_ERR(ctx->reset_gpio));  in s6e3ha2_probe()
713 		return PTR_ERR(ctx->reset_gpio);  in s6e3ha2_probe()
716 	ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);  in s6e3ha2_probe()
717 	if (IS_ERR(ctx->enable_gpio)) {  in s6e3ha2_probe()
718 		dev_err(dev, "cannot get enable-gpios %ld\n",  in s6e3ha2_probe()
719 			PTR_ERR(ctx->enable_gpio));  in s6e3ha2_probe()
720 		return PTR_ERR(ctx->enable_gpio);  in s6e3ha2_probe()
723 	ctx->bl_dev = backlight_device_register("s6e3ha2", dev, ctx,  in s6e3ha2_probe()
725 	if (IS_ERR(ctx->bl_dev)) {  in s6e3ha2_probe()
727 		return PTR_ERR(ctx->bl_dev);  in s6e3ha2_probe()
730 	ctx->bl_dev->props.max_brightness = S6E3HA2_MAX_BRIGHTNESS;  in s6e3ha2_probe()
731 	ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS;  in s6e3ha2_probe()
732 	ctx->bl_dev->props.power = BACKLIGHT_POWER_OFF;  in s6e3ha2_probe()
734 	drm_panel_init(&ctx->panel, dev, &s6e3ha2_drm_funcs,  in s6e3ha2_probe()
736 	ctx->panel.prepare_prev_first = true;  in s6e3ha2_probe()
738 	drm_panel_add(&ctx->panel);  in s6e3ha2_probe()
747 	drm_panel_remove(&ctx->panel);  in s6e3ha2_probe()
748 	backlight_device_unregister(ctx->bl_dev);  in s6e3ha2_probe()
758 	drm_panel_remove(&ctx->panel);  in s6e3ha2_remove()
759 	backlight_device_unregister(ctx->bl_dev);  in s6e3ha2_remove()
773 		.name = "panel-samsung-s6e3ha2",
782 MODULE_DESCRIPTION("MIPI-DSI based s6e3ha2 AMOLED Panel Driver");