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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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97fb5e8d9b
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 294 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
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*/
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#include "edp.h"
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struct edp_bridge {
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struct drm_bridge base;
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struct msm_edp *edp;
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};
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#define to_edp_bridge(x) container_of(x, struct edp_bridge, base)
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void edp_bridge_destroy(struct drm_bridge *bridge)
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{
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}
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static void edp_bridge_pre_enable(struct drm_bridge *bridge)
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{
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struct edp_bridge *edp_bridge = to_edp_bridge(bridge);
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struct msm_edp *edp = edp_bridge->edp;
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DBG("");
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msm_edp_ctrl_power(edp->ctrl, true);
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}
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static void edp_bridge_enable(struct drm_bridge *bridge)
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{
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DBG("");
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}
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static void edp_bridge_disable(struct drm_bridge *bridge)
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{
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DBG("");
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}
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static void edp_bridge_post_disable(struct drm_bridge *bridge)
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{
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struct edp_bridge *edp_bridge = to_edp_bridge(bridge);
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struct msm_edp *edp = edp_bridge->edp;
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DBG("");
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msm_edp_ctrl_power(edp->ctrl, false);
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}
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static void edp_bridge_mode_set(struct drm_bridge *bridge,
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const struct drm_display_mode *mode,
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const struct drm_display_mode *adjusted_mode)
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{
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struct drm_device *dev = bridge->dev;
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struct drm_connector *connector;
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struct edp_bridge *edp_bridge = to_edp_bridge(bridge);
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struct msm_edp *edp = edp_bridge->edp;
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DBG("set mode: " DRM_MODE_FMT, DRM_MODE_ARG(mode));
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list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
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if ((connector->encoder != NULL) &&
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(connector->encoder->bridge == bridge)) {
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msm_edp_ctrl_timing_cfg(edp->ctrl,
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adjusted_mode, &connector->display_info);
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break;
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}
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}
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}
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static const struct drm_bridge_funcs edp_bridge_funcs = {
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.pre_enable = edp_bridge_pre_enable,
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.enable = edp_bridge_enable,
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.disable = edp_bridge_disable,
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.post_disable = edp_bridge_post_disable,
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.mode_set = edp_bridge_mode_set,
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};
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/* initialize bridge */
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struct drm_bridge *msm_edp_bridge_init(struct msm_edp *edp)
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{
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struct drm_bridge *bridge = NULL;
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struct edp_bridge *edp_bridge;
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int ret;
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edp_bridge = devm_kzalloc(edp->dev->dev,
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sizeof(*edp_bridge), GFP_KERNEL);
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if (!edp_bridge) {
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ret = -ENOMEM;
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goto fail;
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}
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edp_bridge->edp = edp;
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bridge = &edp_bridge->base;
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bridge->funcs = &edp_bridge_funcs;
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ret = drm_bridge_attach(edp->encoder, bridge, NULL);
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if (ret)
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goto fail;
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return bridge;
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fail:
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if (bridge)
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edp_bridge_destroy(bridge);
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return ERR_PTR(ret);
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}
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