/*
 *	Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
 *
 * 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.
 *
 * Based off drivers/usb/chipidea/ci_hdrc_msm.c
 *
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/usb/gadget.h>
#include <linux/usb/chipidea.h>

#include "ci.h"

static struct ci_hdrc_platform_data ci_hdrc_zevio_platdata = {
	.name			= "ci_hdrc_zevio",
	.flags			= CI_HDRC_REGS_SHARED | CI_HDRC_FORCE_FULLSPEED,
	.capoffset		= DEF_CAPOFFSET,
};

static int ci_hdrc_zevio_probe(struct platform_device *pdev)
{
	struct platform_device *ci_pdev;

	dev_dbg(&pdev->dev, "ci_hdrc_zevio_probe\n");

	ci_pdev = ci_hdrc_add_device(&pdev->dev,
				pdev->resource, pdev->num_resources,
				&ci_hdrc_zevio_platdata);

	if (IS_ERR(ci_pdev)) {
		dev_err(&pdev->dev, "ci_hdrc_add_device failed!\n");
		return PTR_ERR(ci_pdev);
	}

	platform_set_drvdata(pdev, ci_pdev);

	return 0;
}

static int ci_hdrc_zevio_remove(struct platform_device *pdev)
{
	struct platform_device *ci_pdev = platform_get_drvdata(pdev);

	ci_hdrc_remove_device(ci_pdev);

	return 0;
}

static const struct of_device_id ci_hdrc_zevio_dt_ids[] = {
	{ .compatible = "lsi,zevio-usb", },
	{ /* sentinel */ }
};

static struct platform_driver ci_hdrc_zevio_driver = {
	.probe = ci_hdrc_zevio_probe,
	.remove = ci_hdrc_zevio_remove,
	.driver = {
		.name = "zevio_usb",
		.of_match_table = ci_hdrc_zevio_dt_ids,
	},
};

MODULE_DEVICE_TABLE(of, ci_hdrc_zevio_dt_ids);
module_platform_driver(ci_hdrc_zevio_driver);

MODULE_LICENSE("GPL v2");
efs</a><a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc3/debug.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc3/debug.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc3?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>dwc3</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>debug.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='f598f82e204ec0b17797caaf1b0311c52d43fb9a'/><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>Coly Li &lt;colyli@suse.de&gt;</td><td class='right'>2017-01-24 15:18:46 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 16:26:14 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>f598f82e204ec0b17797caaf1b0311c52d43fb9a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>20e0109db50c168a36df14af76b484eaf9b71836</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>drivers/usb/dwc3/debug.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/dwc3/debug.h?id=4180c4c170a5a33b9987b314d248a9d572d89ab0'>4180c4c170a5a33b9987b314d248a9d572d89ab0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc3/debug.h?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a&amp;id2=4180c4c170a5a33b9987b314d248a9d572d89ab0'>diff</a>)</td></tr></table>
<div class='commit-subject'>romfs: use different way to generate fsid for BLOCK or MTD</div><div class='commit-msg'>Commit 8a59f5d25265 ("fs/romfs: return f_fsid for statfs(2)") generates
a 64bit id from sb-&gt;s_bdev-&gt;bd_dev.  This is only correct when romfs is
defined with CONFIG_ROMFS_ON_BLOCK.  If romfs is only defined with
CONFIG_ROMFS_ON_MTD, sb-&gt;s_bdev is NULL, referencing sb-&gt;s_bdev-&gt;bd_dev
will triger an oops.

Richard Weinberger points out that when CONFIG_ROMFS_BACKED_BY_BOTH=y,
both CONFIG_ROMFS_ON_BLOCK and CONFIG_ROMFS_ON_MTD are defined.
Therefore when calling huge_encode_dev() to generate a 64bit id, I use
the follow order to choose parameter,

- CONFIG_ROMFS_ON_BLOCK defined
  use sb-&gt;s_bdev-&gt;bd_dev
- CONFIG_ROMFS_ON_BLOCK undefined and CONFIG_ROMFS_ON_MTD defined
  use sb-&gt;s_dev when,
- both CONFIG_ROMFS_ON_BLOCK and CONFIG_ROMFS_ON_MTD undefined
  leave id as 0

When CONFIG_ROMFS_ON_MTD is defined and sb-&gt;s_mtd is not NULL, sb-&gt;s_dev
is set to a device ID generated by MTD_BLOCK_MAJOR and mtd index,
otherwise sb-&gt;s_dev is 0.

This is a try-best effort to generate a uniq file system ID, if all the
above conditions are not meet, f_fsid of this romfs instance will be 0.
Generally only one romfs can be built on single MTD block device, this
method is enough to identify multiple romfs instances in a computer.

Link: http://lkml.kernel.org/r/1482928596-115155-1-git-send-email-colyli@suse.de
Signed-off-by: Coly Li &lt;colyli@suse.de&gt;
Reported-by: Nong Li &lt;nongli1031@gmail.com&gt;
Tested-by: Nong Li &lt;nongli1031@gmail.com&gt;
Cc: Richard Weinberger &lt;richard.weinberger@gmail.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=f598f82e204ec0b17797caaf1b0311c52d43fb9a'>Diffstat</a> (limited to 'drivers/usb/dwc3/debug.h')</div><table summary='diffstat' class='diffstat'>