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// SPDX-License-Identifier: GPL-2.0
/*
* ZynqMP DisplayPort Subsystem - KMS API
*
* Copyright (C) 2017 - 2021 Xilinx, Inc.
*
* Authors:
* - Hyun Woo Kwon <hyun.kwon@xilinx.com>
* - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
*/
#include <drm/drm_bridge.h>
#include <drm/drm_bridge_connector.h>
#include <drm/drm_connector.h>
#include <drm/drm_encoder.h>
#include <drm/drm_simple_kms_helper.h>
#include "zynqmp_disp.h"
#include "zynqmp_dp.h"
#include "zynqmp_dpsub.h"
#include "zynqmp_kms.h"
/* -----------------------------------------------------------------------------
* Initialization
*/
int zynqmp_dpsub_kms_init(struct zynqmp_dpsub *dpsub)
{
struct drm_encoder *encoder = &dpsub->encoder;
struct drm_connector *connector;
int ret;
/*
* Initialize the DISP and DP components. This will creates planes,
* CRTC, and a bridge for the DP encoder.
*/
ret = zynqmp_disp_drm_init(dpsub);
if (ret)
return ret;
ret = zynqmp_dp_drm_init(dpsub);
if (ret)
return ret;
/* Create the encoder and attach the bridge. */
encoder->possible_crtcs |= zynqmp_disp_get_crtc_mask(dpsub->disp);
drm_simple_encoder_init(&dpsub->drm, encoder, DRM_MODE_ENCODER_NONE);
ret = drm_bridge_attach(encoder, dpsub->bridge, NULL,
DRM_BRIDGE_ATTACH_NO_CONNECTOR);
if (ret) {
dev_err(dpsub->dev, "failed to attach bridge to encoder\n");
return ret;
}
/* Create the connector for the chain of bridges. */
connector = drm_bridge_connector_init(&dpsub->drm, encoder);
if (IS_ERR(connector)) {
dev_err(dpsub->dev, "failed to created connector\n");
return PTR_ERR(connector);
}
ret = drm_connector_attach_encoder(connector, encoder);
if (ret < 0) {
dev_err(dpsub->dev, "failed to attach connector to encoder\n");
return ret;
}
return 0;
}
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