1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
9 struct drm_bridge base;
12 #define to_edp_bridge(x) container_of(x, struct edp_bridge, base)
14 void edp_bridge_destroy(struct drm_bridge *bridge)
18 static void edp_bridge_pre_enable(struct drm_bridge *bridge)
20 struct edp_bridge *edp_bridge = to_edp_bridge(bridge);
21 struct msm_edp *edp = edp_bridge->edp;
24 msm_edp_ctrl_power(edp->ctrl, true);
27 static void edp_bridge_enable(struct drm_bridge *bridge)
32 static void edp_bridge_disable(struct drm_bridge *bridge)
37 static void edp_bridge_post_disable(struct drm_bridge *bridge)
39 struct edp_bridge *edp_bridge = to_edp_bridge(bridge);
40 struct msm_edp *edp = edp_bridge->edp;
43 msm_edp_ctrl_power(edp->ctrl, false);
46 static void edp_bridge_mode_set(struct drm_bridge *bridge,
47 const struct drm_display_mode *mode,
48 const struct drm_display_mode *adjusted_mode)
50 struct drm_device *dev = bridge->dev;
51 struct drm_connector *connector;
52 struct edp_bridge *edp_bridge = to_edp_bridge(bridge);
53 struct msm_edp *edp = edp_bridge->edp;
55 DBG("set mode: " DRM_MODE_FMT, DRM_MODE_ARG(mode));
57 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
58 if ((connector->encoder != NULL) &&
59 (connector->encoder->bridge == bridge)) {
60 msm_edp_ctrl_timing_cfg(edp->ctrl,
61 adjusted_mode, &connector->display_info);
67 static const struct drm_bridge_funcs edp_bridge_funcs = {
68 .pre_enable = edp_bridge_pre_enable,
69 .enable = edp_bridge_enable,
70 .disable = edp_bridge_disable,
71 .post_disable = edp_bridge_post_disable,
72 .mode_set = edp_bridge_mode_set,
75 /* initialize bridge */
76 struct drm_bridge *msm_edp_bridge_init(struct msm_edp *edp)
78 struct drm_bridge *bridge = NULL;
79 struct edp_bridge *edp_bridge;
82 edp_bridge = devm_kzalloc(edp->dev->dev,
83 sizeof(*edp_bridge), GFP_KERNEL);
89 edp_bridge->edp = edp;
91 bridge = &edp_bridge->base;
92 bridge->funcs = &edp_bridge_funcs;
94 ret = drm_bridge_attach(edp->encoder, bridge, NULL);
102 edp_bridge_destroy(bridge);