/**
 * host.c - DesignWare USB3 DRD Controller Host Glue
 *
 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
 *
 * Authors: Felipe Balbi <balbi@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  of
 * the License 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.
 */

#include <linux/platform_device.h>

#include "core.h"

static int dwc3_host_get_irq(struct dwc3 *dwc)
{
	struct platform_device	*dwc3_pdev = to_platform_device(dwc->dev);
	int irq;

	irq = platform_get_irq_byname(dwc3_pdev, "host");
	if (irq > 0)
		goto out;

	if (irq == -EPROBE_DEFER)
		goto out;

	irq = platform_get_irq_byname(dwc3_pdev, "dwc_usb3");
	if (irq > 0)
		goto out;

	if (irq == -EPROBE_DEFER)
		goto out;

	irq = platform_get_irq(dwc3_pdev, 0);
	if (irq > 0)
		goto out;

	if (irq != -EPROBE_DEFER)
		dev_err(dwc->dev, "missing host IRQ\n");

	if (!irq)
		irq = -EINVAL;

out:
	return irq;
}

int dwc3_host_init(struct dwc3 *dwc)
{
	struct property_entry	props[2];
	struct platform_device	*xhci;
	int			ret, irq;
	struct resource		*res;
	struct platform_device	*dwc3_pdev = to_platform_device(dwc->dev);

	irq = dwc3_host_get_irq(dwc);
	if (irq < 0)
		return irq;

	res = platform_get_resource_byname(dwc3_pdev, IORESOURCE_IRQ, "host");
	if (!res)
		res = platform_get_resource_byname(dwc3_pdev, IORESOURCE_IRQ,
				"dwc_usb3");
	if (!res)
		res = platform_get_resource(dwc3_pdev, IORESOURCE_IRQ, 0);
	if (!res)
		return -ENOMEM;

	dwc->xhci_resources[1].start = irq;
	dwc->xhci_resources[1].end = irq;
	dwc->xhci_resources[1].flags = res->flags;
	dwc->xhci_resources[1].name = res->name;

	xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
	if (!xhci) {
		dev_err(dwc->dev, "couldn't allocate xHCI device\n");
		return -ENOMEM;
	}

	xhci->dev.parent	= dwc->dev;

	dwc->xhci = xhci;

	ret = platform_device_add_resources(xhci, dwc->xhci_resources,
						DWC3_XHCI_RESOURCES_NUM);
	if (ret) {
		dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
		goto err1;
	}

	memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props));

	if (dwc->usb3_lpm_capable) {
		props[0].name = "usb3-lpm-capable";
		ret = platform_device_add_properties(xhci, props);
		if (ret) {
			dev_err(dwc->dev, "failed to add properties to xHCI\n");
			goto err1;
		}
	}

	phy_create_lookup(dwc->usb2_generic_phy, "usb2-phy",
			  dev_name(dwc->dev));
	phy_create_lookup(dwc->usb3_generic_phy, "usb3-phy",
			  dev_name(dwc->dev));

	ret = platform_device_add(xhci);
	if (ret) {
		dev_err(dwc->dev, "failed to register xHCI device\n");
		goto err2;
	}

	return 0;
err2:
	phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
			  dev_name(dwc->dev));
	phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
			  dev_name(dwc->dev));
err1:
	platform_device_put(xhci);
	return ret;
}

void dwc3_host_exit(struct dwc3 *dwc)
{
	phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
			  dev_name(dwc->dev));
	phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
			  dev_name(dwc->dev));
	platform_device_unregister(dwc->xhci);
}
b143bcc'>vx</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/pcmcia/vx/vxpocket.c?h=nds-private-remove&amp;id=24bc5fe716855e5e608c515340b3ceacfb143bcc'>vxpocket.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/pcmcia/vx/vxpocket.c?h=nds-private-remove&amp;id=24bc5fe716855e5e608c515340b3ceacfb143bcc&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
tion><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>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 19:03:21 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 20:22:18 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/via82xx.c?h=nds-private-remove&amp;id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>aaaec6fc755447a1d056765b11b24d8ff2b81366</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/pci/via82xx.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>a7f4167960ee1df86739905b6ccdeb95465bfe5f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/pci/via82xx.c?h=nds-private-remove&amp;id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>sound/pci/via82xx.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/via82xx.c?h=nds-private-remove&amp;id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>08d85f3ea99f1eeafc4e8507936190e86a16ee8c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/via82xx.c?h=nds-private-remove&amp;id=aaaec6fc755447a1d056765b11b24d8ff2b81366&amp;id2=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>diff</a>)</td></tr></table>
<div class='commit-subject'>x86/irq: Make irq activate operations symmetric</div><div class='commit-msg'>The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.

Fix it by deactivating the interrupt before activating the new configuration.

Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith &lt;efault@gmx.de&gt;
Reported-and-tested-by: Borislav Petkov &lt;bp@alien8.de&gt;
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Andrey Ryabinin &lt;aryabinin@virtuozzo.com&gt;
Cc: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>Diffstat</a> (limited to 'sound/pci/via82xx.c')</div><table summary='diffstat' class='diffstat'>