f7018c2135
The drivers/video directory is a mess. It contains generic video related files, directories for backlight, console, linux logo, lots of fbdev device drivers, fbdev framework files. Make some order into the chaos by creating drivers/video/fbdev directory, and move all fbdev related files there. No functionality is changed, although I guess it is possible that some subtle Makefile build order related issue could be created by this patch. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Rob Clark <robdclark@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
159 lines
3.2 KiB
C
159 lines
3.2 KiB
C
/*
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* Copyright (C) 2013 Texas Instruments
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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/device.h>
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/seq_file.h>
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#include <video/omapdss.h>
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struct device_node *
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omapdss_of_get_next_port(const struct device_node *parent,
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struct device_node *prev)
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{
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struct device_node *port = NULL;
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if (!parent)
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return NULL;
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if (!prev) {
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struct device_node *ports;
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/*
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* It's the first call, we have to find a port subnode
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* within this node or within an optional 'ports' node.
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*/
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ports = of_get_child_by_name(parent, "ports");
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if (ports)
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parent = ports;
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port = of_get_child_by_name(parent, "port");
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/* release the 'ports' node */
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of_node_put(ports);
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} else {
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struct device_node *ports;
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ports = of_get_parent(prev);
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if (!ports)
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return NULL;
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do {
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port = of_get_next_child(ports, prev);
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if (!port) {
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of_node_put(ports);
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return NULL;
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}
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prev = port;
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} while (of_node_cmp(port->name, "port") != 0);
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}
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return port;
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}
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EXPORT_SYMBOL_GPL(omapdss_of_get_next_port);
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struct device_node *
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omapdss_of_get_next_endpoint(const struct device_node *parent,
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struct device_node *prev)
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{
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struct device_node *ep = NULL;
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if (!parent)
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return NULL;
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do {
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ep = of_get_next_child(parent, prev);
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if (!ep)
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return NULL;
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prev = ep;
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} while (of_node_cmp(ep->name, "endpoint") != 0);
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return ep;
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}
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EXPORT_SYMBOL_GPL(omapdss_of_get_next_endpoint);
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static struct device_node *
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omapdss_of_get_remote_device_node(const struct device_node *node)
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{
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struct device_node *np;
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int i;
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np = of_parse_phandle(node, "remote-endpoint", 0);
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if (!np)
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return NULL;
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np = of_get_next_parent(np);
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for (i = 0; i < 3 && np; ++i) {
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struct property *prop;
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prop = of_find_property(np, "compatible", NULL);
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if (prop)
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return np;
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np = of_get_next_parent(np);
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}
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return NULL;
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}
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struct device_node *
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omapdss_of_get_first_endpoint(const struct device_node *parent)
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{
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struct device_node *port, *ep;
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port = omapdss_of_get_next_port(parent, NULL);
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if (!port)
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return NULL;
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ep = omapdss_of_get_next_endpoint(port, NULL);
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of_node_put(port);
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return ep;
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}
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EXPORT_SYMBOL_GPL(omapdss_of_get_first_endpoint);
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struct omap_dss_device *
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omapdss_of_find_source_for_first_ep(struct device_node *node)
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{
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struct device_node *ep;
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struct device_node *src_node;
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struct omap_dss_device *src;
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ep = omapdss_of_get_first_endpoint(node);
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if (!ep)
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return ERR_PTR(-EINVAL);
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src_node = omapdss_of_get_remote_device_node(ep);
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of_node_put(ep);
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if (!src_node)
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return ERR_PTR(-EINVAL);
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src = omap_dss_find_output_by_node(src_node);
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of_node_put(src_node);
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if (!src)
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return ERR_PTR(-EPROBE_DEFER);
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return src;
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}
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EXPORT_SYMBOL_GPL(omapdss_of_find_source_for_first_ep);
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