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/*
* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
* Author: Archit Taneja <archit@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License 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.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <drm/drm_panel.h>
#include "dss.h"
#include "omapdss.h"
int omapdss_device_init_output(struct omap_dss_device *out)
{
struct device_node *remote_node;
remote_node = of_graph_get_remote_node(out->dev->of_node, 0, 0);
if (!remote_node) {
dev_dbg(out->dev, "failed to find video sink\n");
return 0;
}
out->next = omapdss_find_device_by_node(remote_node);
out->bridge = of_drm_find_bridge(remote_node);
out->panel = of_drm_find_panel(remote_node);
if (IS_ERR(out->panel))
out->panel = NULL;
of_node_put(remote_node);
if (out->next && out->type != out->next->type) {
dev_err(out->dev, "output type and display type don't match\n");
omapdss_device_put(out->next);
out->next = NULL;
return -EINVAL;
}
return out->next || out->bridge || out->panel ? 0 : -EPROBE_DEFER;
}
EXPORT_SYMBOL(omapdss_device_init_output);
void omapdss_device_cleanup_output(struct omap_dss_device *out)
{
if (out->next)
omapdss_device_put(out->next);
}
EXPORT_SYMBOL(omapdss_device_cleanup_output);
int dss_install_mgr_ops(struct dss_device *dss,
const struct dss_mgr_ops *mgr_ops,
struct omap_drm_private *priv)
{
if (dss->mgr_ops)
return -EBUSY;
dss->mgr_ops = mgr_ops;
dss->mgr_ops_priv = priv;
return 0;
}
EXPORT_SYMBOL(dss_install_mgr_ops);
void dss_uninstall_mgr_ops(struct dss_device *dss)
{
dss->mgr_ops = NULL;
dss->mgr_ops_priv = NULL;
}
EXPORT_SYMBOL(dss_uninstall_mgr_ops);
void dss_mgr_set_timings(struct omap_dss_device *dssdev,
const struct videomode *vm)
{
dssdev->dss->mgr_ops->set_timings(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel, vm);
}
EXPORT_SYMBOL(dss_mgr_set_timings);
void dss_mgr_set_lcd_config(struct omap_dss_device *dssdev,
const struct dss_lcd_mgr_config *config)
{
dssdev->dss->mgr_ops->set_lcd_config(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel, config);
}
EXPORT_SYMBOL(dss_mgr_set_lcd_config);
int dss_mgr_enable(struct omap_dss_device *dssdev)
{
return dssdev->dss->mgr_ops->enable(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel);
}
EXPORT_SYMBOL(dss_mgr_enable);
void dss_mgr_disable(struct omap_dss_device *dssdev)
{
dssdev->dss->mgr_ops->disable(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel);
}
EXPORT_SYMBOL(dss_mgr_disable);
void dss_mgr_start_update(struct omap_dss_device *dssdev)
{
dssdev->dss->mgr_ops->start_update(dssdev->dss->mgr_ops_priv,
dssdev->dispc_channel);
}
EXPORT_SYMBOL(dss_mgr_start_update);
int dss_mgr_register_framedone_handler(struct omap_dss_device *dssdev,
void (*handler)(void *), void *data)
{
struct dss_device *dss = dssdev->dss;
return dss->mgr_ops->register_framedone_handler(dss->mgr_ops_priv,
dssdev->dispc_channel,
handler, data);
}
EXPORT_SYMBOL(dss_mgr_register_framedone_handler);
void dss_mgr_unregister_framedone_handler(struct omap_dss_device *dssdev,
void (*handler)(void *), void *data)
{
struct dss_device *dss = dssdev->dss;
dss->mgr_ops->unregister_framedone_handler(dss->mgr_ops_priv,
dssdev->dispc_channel,
handler, data);
}
EXPORT_SYMBOL(dss_mgr_unregister_framedone_handler);
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