1 // SPDX-License-Identifier: GPL-2.0+
4  * Maxime Ripard <maxime.ripard@free-electrons.com>
23 	struct drm_encoder	encoder;  member
36 drm_encoder_to_sun4i_lvds(struct drm_encoder *encoder)  in drm_encoder_to_sun4i_lvds()  argument
38 	return container_of(encoder, struct sun4i_lvds,  in drm_encoder_to_sun4i_lvds()
39 			    encoder);  in drm_encoder_to_sun4i_lvds()
44 	struct sun4i_lvds *lvds =  in sun4i_lvds_get_modes()  local
47 	return drm_panel_get_modes(lvds->panel, connector);  in sun4i_lvds_get_modes()
68 static void sun4i_lvds_encoder_enable(struct drm_encoder *encoder)  in sun4i_lvds_encoder_enable()  argument
70 	struct sun4i_lvds *lvds = drm_encoder_to_sun4i_lvds(encoder);  in sun4i_lvds_encoder_enable()  local
72 	DRM_DEBUG_DRIVER("Enabling LVDS output\n");  in sun4i_lvds_encoder_enable()
74 	if (lvds->panel) {  in sun4i_lvds_encoder_enable()
75 		drm_panel_prepare(lvds->panel);  in sun4i_lvds_encoder_enable()
76 		drm_panel_enable(lvds->panel);  in sun4i_lvds_encoder_enable()
80 static void sun4i_lvds_encoder_disable(struct drm_encoder *encoder)  in sun4i_lvds_encoder_disable()  argument
82 	struct sun4i_lvds *lvds = drm_encoder_to_sun4i_lvds(encoder);  in sun4i_lvds_encoder_disable()  local
84 	DRM_DEBUG_DRIVER("Disabling LVDS output\n");  in sun4i_lvds_encoder_disable()
86 	if (lvds->panel) {  in sun4i_lvds_encoder_disable()
87 		drm_panel_disable(lvds->panel);  in sun4i_lvds_encoder_disable()
88 		drm_panel_unprepare(lvds->panel);  in sun4i_lvds_encoder_disable()
99 	struct drm_encoder *encoder;  in sun4i_lvds_init()  local
101 	struct sun4i_lvds *lvds;  in sun4i_lvds_init()  local
104 	lvds = devm_kzalloc(drm->dev, sizeof(*lvds), GFP_KERNEL);  in sun4i_lvds_init()
105 	if (!lvds)  in sun4i_lvds_init()
106 		return -ENOMEM;  in sun4i_lvds_init()
107 	encoder = &lvds->encoder;  in sun4i_lvds_init()
109 	ret = drm_of_find_panel_or_bridge(tcon->dev->of_node, 1, 0,  in sun4i_lvds_init()
110 					  &lvds->panel, &bridge);  in sun4i_lvds_init()
112 		dev_info(drm->dev, "No panel or bridge found... LVDS output disabled\n");  in sun4i_lvds_init()
116 	drm_encoder_helper_add(&lvds->encoder,  in sun4i_lvds_init()
118 	ret = drm_simple_encoder_init(drm, &lvds->encoder,  in sun4i_lvds_init()
121 		dev_err(drm->dev, "Couldn't initialise the lvds encoder\n");  in sun4i_lvds_init()
125 	/* The LVDS encoder can only work with the TCON channel 0 */  in sun4i_lvds_init()
126 	lvds->encoder.possible_crtcs = drm_crtc_mask(&tcon->crtc->crtc);  in sun4i_lvds_init()
128 	if (lvds->panel) {  in sun4i_lvds_init()
129 		drm_connector_helper_add(&lvds->connector,  in sun4i_lvds_init()
131 		ret = drm_connector_init(drm, &lvds->connector,  in sun4i_lvds_init()
135 			dev_err(drm->dev, "Couldn't initialise the lvds connector\n");  in sun4i_lvds_init()
139 		drm_connector_attach_encoder(&lvds->connector,  in sun4i_lvds_init()
140 						  &lvds->encoder);  in sun4i_lvds_init()
144 		ret = drm_bridge_attach(encoder, bridge, NULL, 0);  in sun4i_lvds_init()
152 	drm_encoder_cleanup(&lvds->encoder);  in sun4i_lvds_init()