1 // SPDX-License-Identifier: GPL-2.0+
30 	struct drm_bridge	bridge;  member
37 to_imx8mp_hdmi_pvi(struct drm_bridge *bridge)  in to_imx8mp_hdmi_pvi()  argument
39 	return container_of(bridge, struct imx8mp_hdmi_pvi, bridge);  in to_imx8mp_hdmi_pvi()
42 static int imx8mp_hdmi_pvi_bridge_attach(struct drm_bridge *bridge,  in imx8mp_hdmi_pvi_bridge_attach()  argument
45 	struct imx8mp_hdmi_pvi *pvi = to_imx8mp_hdmi_pvi(bridge);  in imx8mp_hdmi_pvi_bridge_attach()
47 	return drm_bridge_attach(bridge->encoder, pvi->next_bridge,  in imx8mp_hdmi_pvi_bridge_attach()
48 				 bridge, flags);  in imx8mp_hdmi_pvi_bridge_attach()
51 static void imx8mp_hdmi_pvi_bridge_enable(struct drm_bridge *bridge,  in imx8mp_hdmi_pvi_bridge_enable()  argument
54 	struct drm_atomic_state *state = bridge_state->base.state;  in imx8mp_hdmi_pvi_bridge_enable()
55 	struct imx8mp_hdmi_pvi *pvi = to_imx8mp_hdmi_pvi(bridge);  in imx8mp_hdmi_pvi_bridge_enable()
62 	connector = drm_atomic_get_new_connector_for_encoder(state, bridge->encoder);  in imx8mp_hdmi_pvi_bridge_enable()
64 	crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);  in imx8mp_hdmi_pvi_bridge_enable()
66 	if (WARN_ON(pm_runtime_resume_and_get(pvi->dev)))  in imx8mp_hdmi_pvi_bridge_enable()
69 	mode = &crtc_state->adjusted_mode;  in imx8mp_hdmi_pvi_bridge_enable()
73 	if (mode->flags & DRM_MODE_FLAG_PVSYNC)  in imx8mp_hdmi_pvi_bridge_enable()
76 	if (mode->flags & DRM_MODE_FLAG_PHSYNC)  in imx8mp_hdmi_pvi_bridge_enable()
79 	if (pvi->next_bridge->timings)  in imx8mp_hdmi_pvi_bridge_enable()
80 		bus_flags = pvi->next_bridge->timings->input_bus_flags;  in imx8mp_hdmi_pvi_bridge_enable()
82 		bus_flags = bridge_state->input_bus_cfg.flags;  in imx8mp_hdmi_pvi_bridge_enable()
87 	writel(val, pvi->regs + HTX_PVI_CTRL);  in imx8mp_hdmi_pvi_bridge_enable()
90 static void imx8mp_hdmi_pvi_bridge_disable(struct drm_bridge *bridge,  in imx8mp_hdmi_pvi_bridge_disable()  argument
93 	struct imx8mp_hdmi_pvi *pvi = to_imx8mp_hdmi_pvi(bridge);  in imx8mp_hdmi_pvi_bridge_disable()
95 	writel(0x0, pvi->regs + HTX_PVI_CTRL);  in imx8mp_hdmi_pvi_bridge_disable()
97 	pm_runtime_put(pvi->dev);  in imx8mp_hdmi_pvi_bridge_disable()
101 imx8mp_hdmi_pvi_bridge_get_input_bus_fmts(struct drm_bridge *bridge,  in imx8mp_hdmi_pvi_bridge_get_input_bus_fmts()  argument
108 	struct imx8mp_hdmi_pvi *pvi = to_imx8mp_hdmi_pvi(bridge);  in imx8mp_hdmi_pvi_bridge_get_input_bus_fmts()
109 	struct drm_bridge *next_bridge = pvi->next_bridge;  in imx8mp_hdmi_pvi_bridge_get_input_bus_fmts()
112 	if (!next_bridge->funcs->atomic_get_input_bus_fmts)  in imx8mp_hdmi_pvi_bridge_get_input_bus_fmts()
115 	next_state = drm_atomic_get_new_bridge_state(crtc_state->state,  in imx8mp_hdmi_pvi_bridge_get_input_bus_fmts()
118 	return next_bridge->funcs->atomic_get_input_bus_fmts(next_bridge,  in imx8mp_hdmi_pvi_bridge_get_input_bus_fmts()
141 	pvi = devm_kzalloc(&pdev->dev, sizeof(*pvi), GFP_KERNEL);  in imx8mp_hdmi_pvi_probe()
143 		return -ENOMEM;  in imx8mp_hdmi_pvi_probe()
146 	pvi->dev = &pdev->dev;  in imx8mp_hdmi_pvi_probe()
148 	pvi->regs = devm_platform_ioremap_resource(pdev, 0);  in imx8mp_hdmi_pvi_probe()
149 	if (IS_ERR(pvi->regs))  in imx8mp_hdmi_pvi_probe()
150 		return PTR_ERR(pvi->regs);  in imx8mp_hdmi_pvi_probe()
152 	/* Get the next bridge in the pipeline. */  in imx8mp_hdmi_pvi_probe()
153 	remote = of_graph_get_remote_node(pdev->dev.of_node, 1, -1);  in imx8mp_hdmi_pvi_probe()
155 		return -EINVAL;  in imx8mp_hdmi_pvi_probe()
157 	pvi->next_bridge = of_drm_find_bridge(remote);  in imx8mp_hdmi_pvi_probe()
160 	if (!pvi->next_bridge)  in imx8mp_hdmi_pvi_probe()
161 		return dev_err_probe(&pdev->dev, -EPROBE_DEFER,  in imx8mp_hdmi_pvi_probe()
162 				     "could not find next bridge\n");  in imx8mp_hdmi_pvi_probe()
164 	pm_runtime_enable(&pdev->dev);  in imx8mp_hdmi_pvi_probe()
166 	/* Register the bridge. */  in imx8mp_hdmi_pvi_probe()
167 	pvi->bridge.funcs = &imx_hdmi_pvi_bridge_funcs;  in imx8mp_hdmi_pvi_probe()
168 	pvi->bridge.of_node = pdev->dev.of_node;  in imx8mp_hdmi_pvi_probe()
169 	pvi->bridge.timings = pvi->next_bridge->timings;  in imx8mp_hdmi_pvi_probe()
171 	drm_bridge_add(&pvi->bridge);  in imx8mp_hdmi_pvi_probe()
180 	drm_bridge_remove(&pvi->bridge);  in imx8mp_hdmi_pvi_remove()
182 	pm_runtime_disable(&pdev->dev);  in imx8mp_hdmi_pvi_remove()
187 		.compatible = "fsl,imx8mp-hdmi-pvi",
198 		.name = "imx-hdmi-pvi",
204 MODULE_DESCRIPTION("i.MX8MP HDMI TX Parallel Video Interface bridge driver");