120 static void ti_sn_bridge_write_u16(struct ti_sn_bridge *pdata,  in ti_sn_bridge_write_u16()  argument
123 	regmap_write(pdata->regmap, reg, val & 0xFF);  in ti_sn_bridge_write_u16()
124 	regmap_write(pdata->regmap, reg + 1, val >> 8);  in ti_sn_bridge_write_u16()
129 	struct ti_sn_bridge *pdata = dev_get_drvdata(dev);  in ti_sn_bridge_resume()  local
132 	ret = regulator_bulk_enable(SN_REGULATOR_SUPPLY_NUM, pdata->supplies);  in ti_sn_bridge_resume()
138 	gpiod_set_value(pdata->enable_gpio, 1);  in ti_sn_bridge_resume()
145 	struct ti_sn_bridge *pdata = dev_get_drvdata(dev);  in ti_sn_bridge_suspend()  local
148 	gpiod_set_value(pdata->enable_gpio, 0);  in ti_sn_bridge_suspend()
150 	ret = regulator_bulk_disable(SN_REGULATOR_SUPPLY_NUM, pdata->supplies);  in ti_sn_bridge_suspend()
163 	struct ti_sn_bridge *pdata = s->private;  in status_show()  local
168 	pm_runtime_get_sync(pdata->dev);  in status_show()
172 		regmap_read(pdata->regmap, reg, &val);  in status_show()
176 	pm_runtime_put(pdata->dev);  in status_show()
183 static void ti_sn_debugfs_init(struct ti_sn_bridge *pdata)  in ti_sn_debugfs_init()  argument
185 	pdata->debugfs = debugfs_create_dir(dev_name(pdata->dev), NULL);  in ti_sn_debugfs_init()
187 	debugfs_create_file("status", 0600, pdata->debugfs, pdata,  in ti_sn_debugfs_init()
191 static void ti_sn_debugfs_remove(struct ti_sn_bridge *pdata)  in ti_sn_debugfs_remove()  argument
193 	debugfs_remove_recursive(pdata->debugfs);  in ti_sn_debugfs_remove()
194 	pdata->debugfs = NULL;  in ti_sn_debugfs_remove()
206 	struct ti_sn_bridge *pdata = connector_to_ti_sn_bridge(connector);  in ti_sn_bridge_connector_get_modes()  local
208 	return drm_panel_get_modes(pdata->panel);  in ti_sn_bridge_connector_get_modes()
252 static int ti_sn_bridge_parse_regulators(struct ti_sn_bridge *pdata)  in ti_sn_bridge_parse_regulators()  argument
260 		pdata->supplies[i].supply = ti_sn_bridge_supply_names[i];  in ti_sn_bridge_parse_regulators()
262 	return devm_regulator_bulk_get(pdata->dev, SN_REGULATOR_SUPPLY_NUM,  in ti_sn_bridge_parse_regulators()
263 				       pdata->supplies);  in ti_sn_bridge_parse_regulators()
269 	struct ti_sn_bridge *pdata = bridge_to_ti_sn_bridge(bridge);  in ti_sn_bridge_attach()  local
277 	ret = drm_connector_init(bridge->dev, &pdata->connector,  in ti_sn_bridge_attach()
285 	drm_connector_helper_add(&pdata->connector,  in ti_sn_bridge_attach()
287 	drm_connector_attach_encoder(&pdata->connector, bridge->encoder);  in ti_sn_bridge_attach()
300 	host = of_find_mipi_dsi_host_by_node(pdata->host_node);  in ti_sn_bridge_attach()
320 	pm_runtime_get_sync(pdata->dev);  in ti_sn_bridge_attach()
321 	regmap_read(pdata->regmap, SN_DPPLL_SRC_REG, &val);  in ti_sn_bridge_attach()
322 	pm_runtime_put(pdata->dev);  in ti_sn_bridge_attach()
331 	pdata->dsi = dsi;  in ti_sn_bridge_attach()
334 	drm_panel_attach(pdata->panel, &pdata->connector);  in ti_sn_bridge_attach()
341 	drm_connector_cleanup(&pdata->connector);  in ti_sn_bridge_attach()
347 	struct ti_sn_bridge *pdata = bridge_to_ti_sn_bridge(bridge);  in ti_sn_bridge_disable()  local
349 	drm_panel_disable(pdata->panel);  in ti_sn_bridge_disable()
352 	regmap_update_bits(pdata->regmap, SN_ENH_FRAME_REG, VSTREAM_ENABLE, 0);  in ti_sn_bridge_disable()
354 	regmap_write(pdata->regmap, SN_ML_TX_MODE_REG, 0);  in ti_sn_bridge_disable()
356 	regmap_write(pdata->regmap, SN_PLL_ENABLE_REG, 0);  in ti_sn_bridge_disable()
358 	drm_panel_unprepare(pdata->panel);  in ti_sn_bridge_disable()
361 static u32 ti_sn_bridge_get_dsi_freq(struct ti_sn_bridge *pdata)  in ti_sn_bridge_get_dsi_freq()  argument
365 		&pdata->bridge.encoder->crtc->state->adjusted_mode;  in ti_sn_bridge_get_dsi_freq()
368 			mipi_dsi_pixel_format_to_bpp(pdata->dsi->format);  in ti_sn_bridge_get_dsi_freq()
369 	clk_freq_khz = bit_rate_khz / (pdata->dsi->lanes * 2);  in ti_sn_bridge_get_dsi_freq()
392 static void ti_sn_bridge_set_refclk_freq(struct ti_sn_bridge *pdata)  in ti_sn_bridge_set_refclk_freq()  argument
399 	if (pdata->refclk) {  in ti_sn_bridge_set_refclk_freq()
400 		refclk_rate = clk_get_rate(pdata->refclk);  in ti_sn_bridge_set_refclk_freq()
403 		clk_prepare_enable(pdata->refclk);  in ti_sn_bridge_set_refclk_freq()
405 		refclk_rate = ti_sn_bridge_get_dsi_freq(pdata) * 1000;  in ti_sn_bridge_set_refclk_freq()
415 	regmap_update_bits(pdata->regmap, SN_DPPLL_SRC_REG, REFCLK_FREQ_MASK,  in ti_sn_bridge_set_refclk_freq()
428 static void ti_sn_bridge_set_dsi_dp_rate(struct ti_sn_bridge *pdata)  in ti_sn_bridge_set_dsi_dp_rate()  argument
433 		&pdata->bridge.encoder->crtc->state->adjusted_mode;  in ti_sn_bridge_set_dsi_dp_rate()
437 			mipi_dsi_pixel_format_to_bpp(pdata->dsi->format);  in ti_sn_bridge_set_dsi_dp_rate()
438 	clk_freq_mhz = bit_rate_mhz / (pdata->dsi->lanes * 2);  in ti_sn_bridge_set_dsi_dp_rate()
443 	regmap_write(pdata->regmap, SN_DSIA_CLK_FREQ_REG, val);  in ti_sn_bridge_set_dsi_dp_rate()
446 	dp_rate_mhz = ((bit_rate_mhz / pdata->dsi->lanes) * DP_CLK_FUDGE_NUM) /  in ti_sn_bridge_set_dsi_dp_rate()
452 	regmap_update_bits(pdata->regmap, SN_DATARATE_CONFIG_REG,  in ti_sn_bridge_set_dsi_dp_rate()
456 static void ti_sn_bridge_set_video_timings(struct ti_sn_bridge *pdata)  in ti_sn_bridge_set_video_timings()  argument
459 		&pdata->bridge.encoder->crtc->state->adjusted_mode;  in ti_sn_bridge_set_video_timings()
467 	ti_sn_bridge_write_u16(pdata, SN_CHA_ACTIVE_LINE_LENGTH_LOW_REG,  in ti_sn_bridge_set_video_timings()
469 	ti_sn_bridge_write_u16(pdata, SN_CHA_VERTICAL_DISPLAY_SIZE_LOW_REG,  in ti_sn_bridge_set_video_timings()
471 	regmap_write(pdata->regmap, SN_CHA_HSYNC_PULSE_WIDTH_LOW_REG,  in ti_sn_bridge_set_video_timings()
473 	regmap_write(pdata->regmap, SN_CHA_HSYNC_PULSE_WIDTH_HIGH_REG,  in ti_sn_bridge_set_video_timings()
476 	regmap_write(pdata->regmap, SN_CHA_VSYNC_PULSE_WIDTH_LOW_REG,  in ti_sn_bridge_set_video_timings()
478 	regmap_write(pdata->regmap, SN_CHA_VSYNC_PULSE_WIDTH_HIGH_REG,  in ti_sn_bridge_set_video_timings()
482 	regmap_write(pdata->regmap, SN_CHA_HORIZONTAL_BACK_PORCH_REG,  in ti_sn_bridge_set_video_timings()
484 	regmap_write(pdata->regmap, SN_CHA_VERTICAL_BACK_PORCH_REG,  in ti_sn_bridge_set_video_timings()
487 	regmap_write(pdata->regmap, SN_CHA_HORIZONTAL_FRONT_PORCH_REG,  in ti_sn_bridge_set_video_timings()
489 	regmap_write(pdata->regmap, SN_CHA_VERTICAL_FRONT_PORCH_REG,  in ti_sn_bridge_set_video_timings()
497 	struct ti_sn_bridge *pdata = bridge_to_ti_sn_bridge(bridge);  in ti_sn_bridge_enable()  local
502 	val = CHA_DSI_LANES(4 - pdata->dsi->lanes);  in ti_sn_bridge_enable()
503 	regmap_update_bits(pdata->regmap, SN_DSI_LANES_REG,  in ti_sn_bridge_enable()
507 	val = DP_NUM_LANES(pdata->dsi->lanes - 1);  in ti_sn_bridge_enable()
508 	regmap_update_bits(pdata->regmap, SN_SSC_CONFIG_REG, DP_NUM_LANES_MASK,  in ti_sn_bridge_enable()
512 	ti_sn_bridge_set_dsi_dp_rate(pdata);  in ti_sn_bridge_enable()
515 	regmap_write(pdata->regmap, SN_PLL_ENABLE_REG, 1);  in ti_sn_bridge_enable()
517 	ret = regmap_read_poll_timeout(pdata->regmap, SN_DPPLL_SRC_REG, val,  in ti_sn_bridge_enable()
531 	drm_dp_dpcd_writeb(&pdata->aux, DP_EDP_CONFIGURATION_SET,  in ti_sn_bridge_enable()
535 	regmap_write(pdata->regmap, SN_ML_TX_MODE_REG, 0x0A);  in ti_sn_bridge_enable()
536 	ret = regmap_read_poll_timeout(pdata->regmap, SN_ML_TX_MODE_REG, val,  in ti_sn_bridge_enable()
549 	ti_sn_bridge_set_video_timings(pdata);  in ti_sn_bridge_enable()
552 	regmap_update_bits(pdata->regmap, SN_ENH_FRAME_REG, VSTREAM_ENABLE,  in ti_sn_bridge_enable()
555 	drm_panel_enable(pdata->panel);  in ti_sn_bridge_enable()
560 	struct ti_sn_bridge *pdata = bridge_to_ti_sn_bridge(bridge);  in ti_sn_bridge_pre_enable()  local
562 	pm_runtime_get_sync(pdata->dev);  in ti_sn_bridge_pre_enable()
565 	ti_sn_bridge_set_refclk_freq(pdata);  in ti_sn_bridge_pre_enable()
583 	regmap_update_bits(pdata->regmap, SN_HPD_DISABLE_REG, HPD_DISABLE,  in ti_sn_bridge_pre_enable()
586 	drm_panel_prepare(pdata->panel);  in ti_sn_bridge_pre_enable()
591 	struct ti_sn_bridge *pdata = bridge_to_ti_sn_bridge(bridge);  in ti_sn_bridge_post_disable()  local
593 	if (pdata->refclk)  in ti_sn_bridge_post_disable()
594 		clk_disable_unprepare(pdata->refclk);  in ti_sn_bridge_post_disable()
596 	pm_runtime_put_sync(pdata->dev);  in ti_sn_bridge_post_disable()
615 	struct ti_sn_bridge *pdata = aux_to_ti_sn_bridge(aux);  in ti_sn_aux_transfer()  local
630 		regmap_write(pdata->regmap, SN_AUX_CMD_REG, request_val);  in ti_sn_aux_transfer()
636 	regmap_write(pdata->regmap, SN_AUX_ADDR_19_16_REG,  in ti_sn_aux_transfer()
638 	regmap_write(pdata->regmap, SN_AUX_ADDR_15_8_REG,  in ti_sn_aux_transfer()
640 	regmap_write(pdata->regmap, SN_AUX_ADDR_7_0_REG, msg->address & 0xFF);  in ti_sn_aux_transfer()
642 	regmap_write(pdata->regmap, SN_AUX_LENGTH_REG, msg->size);  in ti_sn_aux_transfer()
646 			regmap_write(pdata->regmap, SN_AUX_WDATA_REG(i),  in ti_sn_aux_transfer()
650 	regmap_write(pdata->regmap, SN_AUX_CMD_REG, request_val | AUX_CMD_SEND);  in ti_sn_aux_transfer()
652 	ret = regmap_read_poll_timeout(pdata->regmap, SN_AUX_CMD_REG, val,  in ti_sn_aux_transfer()
658 	ret = regmap_read(pdata->regmap, SN_AUX_CMD_STATUS_REG, &val);  in ti_sn_aux_transfer()
671 		ret = regmap_read(pdata->regmap, SN_AUX_RDATA_REG(i),  in ti_sn_aux_transfer()
683 static int ti_sn_bridge_parse_dsi_host(struct ti_sn_bridge *pdata)  in ti_sn_bridge_parse_dsi_host()  argument
685 	struct device_node *np = pdata->dev->of_node;  in ti_sn_bridge_parse_dsi_host()
687 	pdata->host_node = of_graph_get_remote_node(np, 0, 0);  in ti_sn_bridge_parse_dsi_host()
689 	if (!pdata->host_node) {  in ti_sn_bridge_parse_dsi_host()
700 	struct ti_sn_bridge *pdata;  in ti_sn_bridge_probe()  local
708 	pdata = devm_kzalloc(&client->dev, sizeof(struct ti_sn_bridge),  in ti_sn_bridge_probe()
710 	if (!pdata)  in ti_sn_bridge_probe()
713 	pdata->regmap = devm_regmap_init_i2c(client,  in ti_sn_bridge_probe()
715 	if (IS_ERR(pdata->regmap)) {  in ti_sn_bridge_probe()
717 		return PTR_ERR(pdata->regmap);  in ti_sn_bridge_probe()
720 	pdata->dev = &client->dev;  in ti_sn_bridge_probe()
722 	ret = drm_of_find_panel_or_bridge(pdata->dev->of_node, 1, 0,  in ti_sn_bridge_probe()
723 					  &pdata->panel, NULL);  in ti_sn_bridge_probe()
729 	dev_set_drvdata(&client->dev, pdata);  in ti_sn_bridge_probe()
731 	pdata->enable_gpio = devm_gpiod_get(pdata->dev, "enable",  in ti_sn_bridge_probe()
733 	if (IS_ERR(pdata->enable_gpio)) {  in ti_sn_bridge_probe()
735 		ret = PTR_ERR(pdata->enable_gpio);  in ti_sn_bridge_probe()
739 	ret = ti_sn_bridge_parse_regulators(pdata);  in ti_sn_bridge_probe()
745 	pdata->refclk = devm_clk_get(pdata->dev, "refclk");  in ti_sn_bridge_probe()
746 	if (IS_ERR(pdata->refclk)) {  in ti_sn_bridge_probe()
747 		ret = PTR_ERR(pdata->refclk);  in ti_sn_bridge_probe()
751 		pdata->refclk = NULL;  in ti_sn_bridge_probe()
754 	ret = ti_sn_bridge_parse_dsi_host(pdata);  in ti_sn_bridge_probe()
758 	pm_runtime_enable(pdata->dev);  in ti_sn_bridge_probe()
760 	i2c_set_clientdata(client, pdata);  in ti_sn_bridge_probe()
762 	pdata->aux.name = "ti-sn65dsi86-aux";  in ti_sn_bridge_probe()
763 	pdata->aux.dev = pdata->dev;  in ti_sn_bridge_probe()
764 	pdata->aux.transfer = ti_sn_aux_transfer;  in ti_sn_bridge_probe()
765 	drm_dp_aux_register(&pdata->aux);  in ti_sn_bridge_probe()
767 	pdata->bridge.funcs = &ti_sn_bridge_funcs;  in ti_sn_bridge_probe()
768 	pdata->bridge.of_node = client->dev.of_node;  in ti_sn_bridge_probe()
770 	drm_bridge_add(&pdata->bridge);  in ti_sn_bridge_probe()
772 	ti_sn_debugfs_init(pdata);  in ti_sn_bridge_probe()
779 	struct ti_sn_bridge *pdata = i2c_get_clientdata(client);  in ti_sn_bridge_remove()  local
781 	if (!pdata)  in ti_sn_bridge_remove()
784 	ti_sn_debugfs_remove(pdata);  in ti_sn_bridge_remove()
786 	of_node_put(pdata->host_node);  in ti_sn_bridge_remove()
788 	pm_runtime_disable(pdata->dev);  in ti_sn_bridge_remove()
790 	if (pdata->dsi) {  in ti_sn_bridge_remove()
791 		mipi_dsi_detach(pdata->dsi);  in ti_sn_bridge_remove()
792 		mipi_dsi_device_unregister(pdata->dsi);  in ti_sn_bridge_remove()
795 	drm_bridge_remove(&pdata->bridge);  in ti_sn_bridge_remove()