/*
 * Copyright 2011 Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation;
 * either version 2, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; 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, write to the Free Software
 * Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
/*
 * generic EDID driver
 */

#include <linux/slab.h>
#include <linux/fb.h>
#include "via_aux.h"
#include "../edid.h"


static const char *name = "EDID";


static void query_edid(struct via_aux_drv *drv)
{
	struct fb_monspecs *spec = drv->data;
	unsigned char edid[EDID_LENGTH];
	bool valid = false;

	if (spec) {
		fb_destroy_modedb(spec->modedb);
	} else {
		spec = kmalloc(sizeof(*spec), GFP_KERNEL);
		if (!spec)
			return;
	}

	spec->version = spec->revision = 0;
	if (via_aux_read(drv, 0x00, edid, EDID_LENGTH)) {
		fb_edid_to_monspecs(edid, spec);
		valid = spec->version || spec->revision;
	}

	if (!valid) {
		kfree(spec);
		spec = NULL;
	} else
		printk(KERN_DEBUG "EDID: %s %s\n", spec->manufacturer, spec->monitor);

	drv->data = spec;
}

static const struct fb_videomode *get_preferred_mode(struct via_aux_drv *drv)
{
	struct fb_monspecs *spec = drv->data;
	int i;

	if (!spec || !spec->modedb || !(spec->misc & FB_MISC_1ST_DETAIL))
		return NULL;

	for (i = 0; i < spec->modedb_len; i++) {
		if (spec->modedb[i].flag & FB_MODE_IS_FIRST &&
			spec->modedb[i].flag & FB_MODE_IS_DETAILED)
			return &spec->modedb[i];
	}

	return NULL;
}

static void cleanup(struct via_aux_drv *drv)
{
	struct fb_monspecs *spec = drv->data;

	if (spec)
		fb_destroy_modedb(spec->modedb);
}

void via_aux_edid_probe(struct via_aux_bus *bus)
{
	struct via_aux_drv drv = {
		.bus	=	bus,
		.addr	=	0x50,
		.name	=	name,
		.cleanup	=	cleanup,
		.get_preferred_mode	=	get_preferred_mode};

	query_edid(&drv);

	/* as EDID devices can be connected/disconnected just add the driver */
	via_aux_add(&drv);
}
tter</option>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/switchdev?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>switchdev</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='88f0e3a5e6ed674f485d3a09d53c2ead0000378d'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Charles Keepax &lt;ckeepax@opensource.wolfsonmicro.com&gt;</td><td class='right'>2016-10-21 14:47:42 +0100</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-10-24 17:43:05 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/switchdev?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>88f0e3a5e6ed674f485d3a09d53c2ead0000378d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/switchdev?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>8214d62db45ab4ab9a54c475e0b91ea8d7ebdfa9</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/switchdev?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>net/switchdev</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/switchdev?id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/switchdev?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d&amp;id2=1001354ca34179f3db924eb66672442a173147dc'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: arizona-ldo1: Set appropriate value for ramp_delay</div><div class='commit-msg'>Signed-off-by: Charles Keepax &lt;ckeepax@opensource.wolfsonmicro.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=88f0e3a5e6ed674f485d3a09d53c2ead0000378d'>Diffstat</a> (limited to 'net/switchdev')</div><table summary='diffstat' class='diffstat'>