ce69aac84f
Now that the direction of OF graph walk has been reversed, there's no need to lookup devices by port as we have no sink device connected through multiple sink ports. Simplify OF lookup of the DSS devices to look them up by node only. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com> Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/*
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* Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
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* Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/err.h>
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#include <linux/of.h>
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#include <linux/of_graph.h>
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#include "omapdss.h"
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struct omap_dss_device *
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omapdss_of_find_connected_device(struct device_node *node, unsigned int port)
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{
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struct device_node *remote_node;
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struct omap_dss_device *dssdev;
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remote_node = of_graph_get_remote_node(node, port, 0);
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if (!remote_node)
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return NULL;
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dssdev = omapdss_find_device_by_node(remote_node);
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of_node_put(remote_node);
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return dssdev ? dssdev : ERR_PTR(-EPROBE_DEFER);
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}
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EXPORT_SYMBOL_GPL(omapdss_of_find_connected_device);
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