drm/panel/panel-himax-hx8279.c

248 static void hx8279_set_page(struct hx8279 *hx,
253 	if (hx->last_page == page)
258 		hx->last_page = page;
261 static void hx8279_set_module_config(struct hx8279 *hx,
264 	const struct hx8279_panel_desc *desc = hx->desc;
267 	if (hx->skip_voltage_config)
271 	hx8279_set_page(hx, dsi_ctx, 0);
302 static void hx8279_set_gmux(struct hx8279 *hx,
305 	const struct hx8279_goa_mux *gmux = hx->desc->gmux;
312 	hx8279_set_page(hx, dsi_ctx, 1);
329 static void hx8279_set_analog_gamma(struct hx8279 *hx,
332 	const struct hx8279_analog_gamma *agamma = hx->desc->agamma;
339 	hx8279_set_page(hx, dsi_ctx, 2);
356 static void hx8279_set_goa_timing(struct hx8279 *hx,
359 	const struct hx8279_panel_desc *desc = hx->desc;
363 	if (hx->skip_goa_timing)
366 	hx8279_set_page(hx, dsi_ctx, 3);
383 static void hx8279_set_goa_cfg(struct hx8279 *hx,
386 	const struct hx8279_panel_desc *desc = hx->desc;
390 	if (hx->skip_goa_config)
393 	hx8279_set_page(hx, dsi_ctx, 3);
487 static void hx8279_set_mipi_cfg(struct hx8279 *hx,
490 	const struct hx8279_panel_desc *desc = hx->desc;
493 	if (hx->skip_mipi_timing)
496 	hx8279_set_page(hx, dsi_ctx, 5);
531 static void hx8279_set_adv_cfg(struct hx8279 *hx,
534 	const struct hx8279_panel_desc *desc = hx->desc;
543 	hx8279_set_page(hx, dsi_ctx, 6);
573 static void hx8279_set_digital_gamma(struct hx8279 *hx,
576 	const struct hx8279_digital_gamma *dgamma = hx->desc->dgamma;
591 		hx8279_set_page(hx, dsi_ctx, 7 + pg_neg);
600 		hx8279_set_page(hx, dsi_ctx, 8 + pg_neg);
609 		hx8279_set_page(hx, dsi_ctx, 9 + pg_neg);
620 static int hx8279_on(struct hx8279 *hx)
622 	struct mipi_dsi_device *dsi = hx->dsi[0];
626 	hx8279_set_mipi_cfg(hx, &dsi_ctx);
629 	hx8279_set_gmux(hx, &dsi_ctx);
632 	hx8279_set_analog_gamma(hx, &dsi_ctx);
635 	hx8279_set_goa_cfg(hx, &dsi_ctx);
636 	hx8279_set_goa_timing(hx, &dsi_ctx);
639 	hx8279_set_module_config(hx, &dsi_ctx);
642 	hx8279_set_adv_cfg(hx, &dsi_ctx);
645 	hx8279_set_digital_gamma(hx, &dsi_ctx);
650 static void hx8279_power_off(struct hx8279 *hx)
652 	gpiod_set_value_cansleep(hx->reset_gpio, 0);
654 	gpiod_set_value_cansleep(hx->enable_gpio, 0);
655 	regulator_bulk_disable(ARRAY_SIZE(hx->vregs), hx->vregs);
660 	struct hx8279 *hx = to_hx8279(panel);
661 	struct mipi_dsi_device *dsi = hx->dsi[0];
671 	struct hx8279 *hx = to_hx8279(panel);
672 	struct mipi_dsi_device *dsi = hx->dsi[0];
682 	struct hx8279 *hx = to_hx8279(panel);
683 	struct mipi_dsi_device *dsi = hx->dsi[0];
687 	ret = regulator_bulk_enable(ARRAY_SIZE(hx->vregs), hx->vregs);
691 	gpiod_set_value_cansleep(hx->enable_gpio, 1);
693 	gpiod_set_value_cansleep(hx->reset_gpio, 1);
697 	if (hx->dsi[1])
698 		hx->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
700 	ret = hx8279_on(hx);
702 		hx8279_power_off(hx);
714 	struct hx8279 *hx = to_hx8279(panel);
715 	struct mipi_dsi_device *dsi = hx->dsi[0];
722 	if (hx->dsi[1])
723 		hx->dsi[1]->mode_flags &= ~MIPI_DSI_MODE_LPM;
725 	hx8279_power_off(hx);
732 	struct hx8279 *hx = to_hx8279(panel);
735 	for (i = 0; i < hx->desc->num_modes; i++) {
738 		mode = drm_mode_duplicate(connector->dev, &hx->desc->mode_data[i].mode);
745 		if (hx->desc->num_modes == 1)
751 	connector->display_info.bpc = hx->desc->mode_data[0].bpc;
752 	connector->display_info.height_mm = hx->desc->mode_data[0].mode.height_mm;
753 	connector->display_info.width_mm = hx->desc->mode_data[0].mode.width_mm;
755 	return hx->desc->num_modes;
766 static int hx8279_init_vregs(struct hx8279 *hx, struct device *dev)
770 	hx->vregs[0].supply = "vdd";
771 	hx->vregs[1].supply = "iovcc";
772 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(hx->vregs),
773 				      hx->vregs);
777 	ret = regulator_is_supported_voltage(hx->vregs[0].consumer,
782 	ret = regulator_is_supported_voltage(hx->vregs[1].consumer,
790 static int hx8279_check_gmux_config(struct hx8279 *hx, struct device *dev)
792 	const struct hx8279_panel_desc *desc = hx->desc;
815 static int hx8279_check_goa_config(struct hx8279 *hx, struct device *dev)
817 	const struct hx8279_panel_desc *desc = hx->desc;
845 		hx->skip_goa_timing = true;
852 		hx->skip_goa_config = true;
894 static int hx8279_check_dig_gamma(struct hx8279 *hx, struct device *dev, const u8 *component)
943 static int hx8279_check_params(struct hx8279 *hx, struct device *dev)
945 	const struct hx8279_panel_desc *desc = hx->desc;
950 		hx->skip_voltage_config = true;
958 	ret = hx8279_check_gmux_config(hx, dev);
963 	ret = hx8279_check_goa_config(hx, dev);
971 		hx->skip_mipi_timing = true;
979 		ret = hx8279_check_dig_gamma(hx, dev, desc->dgamma->r);
983 		ret = hx8279_check_dig_gamma(hx, dev, desc->dgamma->g);
987 		ret = hx8279_check_dig_gamma(hx, dev, desc->dgamma->b);
999 	struct hx8279 *hx;
1002 	hx = devm_drm_panel_alloc(dev, struct hx8279, panel,
1004 	if (IS_ERR(hx))
1005 		return PTR_ERR(hx);
1007 	ret = hx8279_init_vregs(hx, dev);
1011 	hx->desc = device_get_match_data(dev);
1012 	if (!hx->desc)
1025 	ret = hx8279_check_params(hx, dev);
1030 	hx->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_ASIS);
1031 	if (IS_ERR(hx->enable_gpio))
1032 		return dev_err_probe(dev, PTR_ERR(hx->enable_gpio),
1035 	hx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS);
1036 	if (IS_ERR(hx->reset_gpio))
1037 		return dev_err_probe(dev, PTR_ERR(hx->reset_gpio),
1043 		const struct mipi_dsi_device_info *info = &hx->desc->dsi_info;
1052 		hx->dsi[1] = devm_mipi_dsi_device_register_full(dev, dsi_r_host, info);
1053 		if (IS_ERR(hx->dsi[1]))
1054 			return dev_err_probe(dev, PTR_ERR(hx->dsi[1]),
1056 		mipi_dsi_set_drvdata(hx->dsi[1], hx);
1059 	hx->dsi[0] = dsi;
1060 	mipi_dsi_set_drvdata(dsi, hx);
1062 	ret = drm_panel_of_backlight(&hx->panel);
1066 	drm_panel_add(&hx->panel);
1069 		if (!hx->dsi[i])
1072 		hx->dsi[i]->lanes = hx->desc->num_lanes;
1073 		hx->dsi[i]->format = MIPI_DSI_FMT_RGB888;
1075 		hx->dsi[i]->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS |
1078 		if (hx->desc->mode_data[0].is_video_mode)
1079 			hx->dsi[i]->mode_flags |= MIPI_DSI_MODE_VIDEO |
1082 		ret = devm_mipi_dsi_attach(dev, hx->dsi[i]);
1084 			drm_panel_remove(&hx->panel);
1095 	struct hx8279 *hx = mipi_dsi_get_drvdata(dsi);
1097 	drm_panel_remove(&hx->panel);