1 // SPDX-License-Identifier: GPL-2.0
4  *    Zheng Yang <zhengyang@rock-chips.com>
70 	return readl_relaxed(hdmi->regs + offset);  in hdmi_readb()
75 	writel_relaxed(val, hdmi->regs + offset);  in hdmi_writeb()
91 	ddc_bus_freq = (hdmi->tmdsclk >> 2) / HDMI_SCL_RATE;  in rk3066_hdmi_i2c_init()
113 	DRM_DEV_DEBUG(hdmi->dev, "mode         :%d\n", mode);  in rk3066_hdmi_set_power_mode()
114 	DRM_DEV_DEBUG(hdmi->dev, "current_mode :%d\n", current_mode);  in rk3066_hdmi_set_power_mode()
129 		DRM_DEV_DEBUG(hdmi->dev, "%d: next_mode :%d\n", i, next_mode);  in rk3066_hdmi_set_power_mode()
157 		hdmi->tmdsclk = DEFAULT_PLLA_RATE;  in rk3066_hdmi_set_power_mode()
166 		drm_err(bridge->dev, "Unsupported infoframe type: %u\n", type);  in rk3066_hdmi_bridge_clear_infoframe()
184 		drm_err(bridge->dev, "Unsupported infoframe type: %u\n", type);  in rk3066_hdmi_bridge_write_infoframe()
203 	value |= mode->flags & DRM_MODE_FLAG_PHSYNC ?  in rk3066_hdmi_config_video_timing()
205 	value |= mode->flags & DRM_MODE_FLAG_PVSYNC ?  in rk3066_hdmi_config_video_timing()
207 	value |= mode->flags & DRM_MODE_FLAG_INTERLACE ?  in rk3066_hdmi_config_video_timing()
210 	if (hdmi->hdmi_data.vic == 2 || hdmi->hdmi_data.vic == 3)  in rk3066_hdmi_config_video_timing()
219 	value = mode->htotal;  in rk3066_hdmi_config_video_timing()
223 	value = mode->htotal - mode->hdisplay;  in rk3066_hdmi_config_video_timing()
227 	value = mode->htotal - mode->hsync_start;  in rk3066_hdmi_config_video_timing()
231 	value = mode->hsync_end - mode->hsync_start;  in rk3066_hdmi_config_video_timing()
235 	value = mode->vtotal;  in rk3066_hdmi_config_video_timing()
239 	value = mode->vtotal - mode->vdisplay;  in rk3066_hdmi_config_video_timing()
242 	value = mode->vtotal - mode->vsync_start + vsync_offset;  in rk3066_hdmi_config_video_timing()
245 	value = mode->vsync_end - mode->vsync_start;  in rk3066_hdmi_config_video_timing()
268 	 * The semi-public documentation does not describe the hdmi registers  in rk3066_hdmi_config_phy()
272 	if (hdmi->tmdsclk > 100000000) {  in rk3066_hdmi_config_phy()
282 	} else if (hdmi->tmdsclk > 50000000) {  in rk3066_hdmi_config_phy()
308 	struct drm_bridge *bridge = &hdmi->bridge;  in rk3066_hdmi_setup()
315 	connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder);  in rk3066_hdmi_setup()
319 		return -EINVAL;  in rk3066_hdmi_setup()
321 	new_crtc_state = drm_atomic_get_new_crtc_state(state, new_conn_state->crtc);  in rk3066_hdmi_setup()
323 		return -EINVAL;  in rk3066_hdmi_setup()
325 	display = &connector->display_info;  in rk3066_hdmi_setup()
326 	mode = &new_crtc_state->adjusted_mode;  in rk3066_hdmi_setup()
328 	hdmi->hdmi_data.vic = drm_match_cea_mode(mode);  in rk3066_hdmi_setup()
329 	hdmi->hdmi_data.enc_out_format = HDMI_COLORSPACE_RGB;  in rk3066_hdmi_setup()
331 	if (hdmi->hdmi_data.vic == 6 || hdmi->hdmi_data.vic == 7 ||  in rk3066_hdmi_setup()
332 	    hdmi->hdmi_data.vic == 21 || hdmi->hdmi_data.vic == 22 ||  in rk3066_hdmi_setup()
333 	    hdmi->hdmi_data.vic == 2 || hdmi->hdmi_data.vic == 3 ||  in rk3066_hdmi_setup()
334 	    hdmi->hdmi_data.vic == 17 || hdmi->hdmi_data.vic == 18)  in rk3066_hdmi_setup()
335 		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;  in rk3066_hdmi_setup()
337 		hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;  in rk3066_hdmi_setup()
339 	hdmi->tmdsclk = mode->clock * 1000;  in rk3066_hdmi_setup()
345 	/* Set power state to mode B. */  in rk3066_hdmi_setup()
360 	if (display->is_hdmi) {  in rk3066_hdmi_setup()
394 	conn_state = drm_atomic_get_new_connector_state(state, hdmi->connector);  in rk3066_hdmi_bridge_atomic_enable()
398 	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);  in rk3066_hdmi_bridge_atomic_enable()
402 	mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, &hdmi->encoder.encoder);  in rk3066_hdmi_bridge_atomic_enable()
408 	regmap_write(hdmi->grf_regmap, GRF_SOC_CON0, val);  in rk3066_hdmi_bridge_atomic_enable()
410 	DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder enable select: vop%s\n",  in rk3066_hdmi_bridge_atomic_enable()
421 	DRM_DEV_DEBUG(hdmi->dev, "hdmi encoder disable\n");  in rk3066_hdmi_bridge_atomic_disable()
441 	s->output_mode = ROCKCHIP_OUT_MODE_P888;  in rk3066_hdmi_encoder_atomic_check()
442 	s->output_type = DRM_MODE_CONNECTOR_HDMIA;  in rk3066_hdmi_encoder_atomic_check()
467 	drm_edid = drm_edid_read_ddc(connector, bridge->ddc);  in rk3066_hdmi_bridge_edid_read()
469 		dev_dbg(hdmi->dev, "failed to get edid\n");  in rk3066_hdmi_bridge_edid_read()
515 		hdmi->i2c->stat = interrupt;  in rk3066_hdmi_hardirq()
516 		complete(&hdmi->i2c->cmpltn);  in rk3066_hdmi_hardirq()
529 	drm_helper_hpd_irq_event(hdmi->connector->dev);  in rk3066_hdmi_irq()
536 	int length = msgs->len;  in rk3066_hdmi_i2c_read()
537 	u8 *buf = msgs->buf;  in rk3066_hdmi_i2c_read()
540 	ret = wait_for_completion_timeout(&hdmi->i2c->cmpltn, HZ / 10);  in rk3066_hdmi_i2c_read()
541 	if (!ret || hdmi->i2c->stat & HDMI_INTR_EDID_ERR)  in rk3066_hdmi_i2c_read()
542 		return -EAGAIN;  in rk3066_hdmi_i2c_read()
544 	while (length--)  in rk3066_hdmi_i2c_read()
557 	if (msgs->len != 1 ||  in rk3066_hdmi_i2c_write()
558 	    (msgs->addr != DDC_ADDR && msgs->addr != DDC_SEGMENT_ADDR))  in rk3066_hdmi_i2c_write()
559 		return -EINVAL;  in rk3066_hdmi_i2c_write()
561 	reinit_completion(&hdmi->i2c->cmpltn);  in rk3066_hdmi_i2c_write()
563 	if (msgs->addr == DDC_SEGMENT_ADDR)  in rk3066_hdmi_i2c_write()
564 		hdmi->i2c->segment_addr = msgs->buf[0];  in rk3066_hdmi_i2c_write()
565 	if (msgs->addr == DDC_ADDR)  in rk3066_hdmi_i2c_write()
566 		hdmi->i2c->ddc_addr = msgs->buf[0];  in rk3066_hdmi_i2c_write()
572 	hdmi_writeb(hdmi, HDMI_EDID_WORD_ADDR, hdmi->i2c->ddc_addr);  in rk3066_hdmi_i2c_write()
575 	hdmi_writeb(hdmi, HDMI_EDID_SEGMENT_POINTER, hdmi->i2c->segment_addr);  in rk3066_hdmi_i2c_write()
584 	struct rk3066_hdmi_i2c *i2c = hdmi->i2c;  in rk3066_hdmi_i2c_xfer()
587 	mutex_lock(&i2c->i2c_lock);  in rk3066_hdmi_i2c_xfer()
594 	i2c->stat = 0;  in rk3066_hdmi_i2c_xfer()
597 		DRM_DEV_DEBUG(hdmi->dev,  in rk3066_hdmi_i2c_xfer()
616 	mutex_unlock(&i2c->i2c_lock);  in rk3066_hdmi_i2c_xfer()
637 	i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL);  in rk3066_hdmi_i2c_adapter()
639 		return ERR_PTR(-ENOMEM);  in rk3066_hdmi_i2c_adapter()
641 	mutex_init(&i2c->i2c_lock);  in rk3066_hdmi_i2c_adapter()
642 	init_completion(&i2c->cmpltn);  in rk3066_hdmi_i2c_adapter()
644 	adap = &i2c->adap;  in rk3066_hdmi_i2c_adapter()
645 	adap->owner = THIS_MODULE;  in rk3066_hdmi_i2c_adapter()
646 	adap->dev.parent = hdmi->dev;  in rk3066_hdmi_i2c_adapter()
647 	adap->dev.of_node = hdmi->dev->of_node;  in rk3066_hdmi_i2c_adapter()
648 	adap->algo = &rk3066_hdmi_algorithm;  in rk3066_hdmi_i2c_adapter()
649 	strscpy(adap->name, "RK3066 HDMI", sizeof(adap->name));  in rk3066_hdmi_i2c_adapter()
652 	ret = devm_i2c_add_adapter(hdmi->dev, adap);  in rk3066_hdmi_i2c_adapter()
654 		DRM_DEV_ERROR(hdmi->dev, "cannot add %s I2C adapter\n",  in rk3066_hdmi_i2c_adapter()
655 			      adap->name);  in rk3066_hdmi_i2c_adapter()
656 		devm_kfree(hdmi->dev, i2c);  in rk3066_hdmi_i2c_adapter()
660 	hdmi->i2c = i2c;  in rk3066_hdmi_i2c_adapter()
662 	DRM_DEV_DEBUG(hdmi->dev, "registered %s I2C bus driver\n", adap->name);  in rk3066_hdmi_i2c_adapter()
670 	struct drm_encoder *encoder = &hdmi->encoder.encoder;  in rk3066_hdmi_register()
671 	struct device *dev = hdmi->dev;  in rk3066_hdmi_register()
674 	encoder->possible_crtcs =  in rk3066_hdmi_register()
675 		drm_of_find_possible_crtcs(drm, dev->of_node);  in rk3066_hdmi_register()
683 	if (encoder->possible_crtcs == 0)  in rk3066_hdmi_register()
684 		return -EPROBE_DEFER;  in rk3066_hdmi_register()
689 	hdmi->bridge.driver_private = hdmi;  in rk3066_hdmi_register()
690 	hdmi->bridge.funcs = &rk3066_hdmi_bridge_funcs;  in rk3066_hdmi_register()
691 	hdmi->bridge.ops = DRM_BRIDGE_OP_DETECT |  in rk3066_hdmi_register()
695 	hdmi->bridge.of_node = hdmi->dev->of_node;  in rk3066_hdmi_register()
696 	hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;  in rk3066_hdmi_register()
697 	hdmi->bridge.vendor = "Rockchip";  in rk3066_hdmi_register()
698 	hdmi->bridge.product = "RK3066 HDMI";  in rk3066_hdmi_register()
700 	hdmi->bridge.ddc = rk3066_hdmi_i2c_adapter(hdmi);  in rk3066_hdmi_register()
701 	if (IS_ERR(hdmi->bridge.ddc))  in rk3066_hdmi_register()
702 		return PTR_ERR(hdmi->bridge.ddc);  in rk3066_hdmi_register()
704 	if (IS_ERR(hdmi->bridge.ddc))  in rk3066_hdmi_register()
705 		return PTR_ERR(hdmi->bridge.ddc);  in rk3066_hdmi_register()
707 	ret = devm_drm_bridge_add(dev, &hdmi->bridge);  in rk3066_hdmi_register()
711 	ret = drm_bridge_attach(encoder, &hdmi->bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);  in rk3066_hdmi_register()
715 	hdmi->connector = drm_bridge_connector_init(drm, encoder);  in rk3066_hdmi_register()
716 	if (IS_ERR(hdmi->connector)) {  in rk3066_hdmi_register()
717 		ret = PTR_ERR(hdmi->connector);  in rk3066_hdmi_register()
718 		dev_err(hdmi->dev, "failed to init bridge connector: %d\n", ret);  in rk3066_hdmi_register()
722 	drm_connector_attach_encoder(hdmi->connector, encoder);  in rk3066_hdmi_register()
738 		return -ENOMEM;  in rk3066_hdmi_bind()
740 	hdmi->dev = dev;  in rk3066_hdmi_bind()
741 	hdmi->drm_dev = drm;  in rk3066_hdmi_bind()
742 	hdmi->regs = devm_platform_ioremap_resource(pdev, 0);  in rk3066_hdmi_bind()
743 	if (IS_ERR(hdmi->regs))  in rk3066_hdmi_bind()
744 		return PTR_ERR(hdmi->regs);  in rk3066_hdmi_bind()
750 	hdmi->hclk = devm_clk_get(dev, "hclk");  in rk3066_hdmi_bind()
751 	if (IS_ERR(hdmi->hclk)) {  in rk3066_hdmi_bind()
753 		return PTR_ERR(hdmi->hclk);  in rk3066_hdmi_bind()
756 	ret = clk_prepare_enable(hdmi->hclk);  in rk3066_hdmi_bind()
762 	hdmi->grf_regmap = syscon_regmap_lookup_by_phandle(dev->of_node,  in rk3066_hdmi_bind()
764 	if (IS_ERR(hdmi->grf_regmap)) {  in rk3066_hdmi_bind()
766 		ret = PTR_ERR(hdmi->grf_regmap);  in rk3066_hdmi_bind()
798 	hdmi->encoder.encoder.funcs->destroy(&hdmi->encoder.encoder);  in rk3066_hdmi_bind()
800 	clk_disable_unprepare(hdmi->hclk);  in rk3066_hdmi_bind()
810 	hdmi->encoder.encoder.funcs->destroy(&hdmi->encoder.encoder);  in rk3066_hdmi_unbind()
812 	clk_disable_unprepare(hdmi->hclk);  in rk3066_hdmi_unbind()
822 	return component_add(&pdev->dev, &rk3066_hdmi_ops);  in rk3066_hdmi_probe()
827 	component_del(&pdev->dev, &rk3066_hdmi_ops);  in rk3066_hdmi_remove()
831 	{ .compatible = "rockchip,rk3066-hdmi" },
840 		.name = "rockchip-rk3066-hdmi",