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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2016 Marek Vasut <marex@denx.de>
*/
#include <linux/of_graph.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_of.h>
#include <drm/drm_panel.h>
#include <drm/drm_plane_helper.h>
#include <drm/drm_probe_helper.h>
#include <drm/drm_simple_kms_helper.h>
#include "mxsfb_drv.h"
static struct mxsfb_drm_private *
drm_connector_to_mxsfb_drm_private(struct drm_connector *connector)
{
return container_of(connector, struct mxsfb_drm_private,
panel_connector);
}
static int mxsfb_panel_get_modes(struct drm_connector *connector)
{
struct mxsfb_drm_private *mxsfb =
drm_connector_to_mxsfb_drm_private(connector);
if (mxsfb->panel)
return drm_panel_get_modes(mxsfb->panel, connector);
return 0;
}
static const struct
drm_connector_helper_funcs mxsfb_panel_connector_helper_funcs = {
.get_modes = mxsfb_panel_get_modes,
};
static enum drm_connector_status
mxsfb_panel_connector_detect(struct drm_connector *connector, bool force)
{
struct mxsfb_drm_private *mxsfb =
drm_connector_to_mxsfb_drm_private(connector);
if (mxsfb->panel)
return connector_status_connected;
return connector_status_disconnected;
}
static void mxsfb_panel_connector_destroy(struct drm_connector *connector)
{
struct mxsfb_drm_private *mxsfb =
drm_connector_to_mxsfb_drm_private(connector);
if (mxsfb->panel)
drm_panel_detach(mxsfb->panel);
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
static const struct drm_connector_funcs mxsfb_panel_connector_funcs = {
.detect = mxsfb_panel_connector_detect,
.fill_modes = drm_helper_probe_single_connector_modes,
.destroy = mxsfb_panel_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
int mxsfb_create_output(struct drm_device *drm)
{
struct mxsfb_drm_private *mxsfb = drm->dev_private;
int ret;
ret = drm_of_find_panel_or_bridge(drm->dev->of_node, 0, 0,
&mxsfb->panel, &mxsfb->bridge);
if (ret)
return ret;
if (mxsfb->panel) {
mxsfb->connector = &mxsfb->panel_connector;
mxsfb->connector->dpms = DRM_MODE_DPMS_OFF;
mxsfb->connector->polled = 0;
drm_connector_helper_add(mxsfb->connector,
&mxsfb_panel_connector_helper_funcs);
ret = drm_connector_init(drm, mxsfb->connector,
&mxsfb_panel_connector_funcs,
DRM_MODE_CONNECTOR_Unknown);
}
return ret;
}
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