<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git, branch v4.4.8</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>Linux 4.4.8</title>
<updated>2016-04-20T06:44:02+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2016-04-20T06:44:02+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8c9aef03d3b540b6885e7534a885ea25f62dd9ed'/>
<id>8c9aef03d3b540b6885e7534a885ea25f62dd9ed</id>
<content type='text'>
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "usb: hub: do not clear BOS field during reset device"</title>
<updated>2016-04-20T06:42:17+00:00</updated>
<author>
<name>Greg Kroah-Hartman</name>
<email>gregkh@linuxfoundation.org</email>
</author>
<published>2016-02-20T22:19:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4b59a38da5983852008270e81140f611df6f0bfd'/>
<id>4b59a38da5983852008270e81140f611df6f0bfd</id>
<content type='text'>
commit e5bdfd50d6f76077bf8441d130c606229e100d40 upstream.

This reverts commit d8f00cd685f5c8e0def8593e520a7fef12c22407.

Tony writes:

This upstream commit is causing an oops:
d8f00cd685f5 ("usb: hub: do not clear BOS field during reset device")

This patch has already been included in several -stable kernels.  Here
are the affected kernels:
4.5.0-rc4 (current git)
4.4.2
4.3.6 (currently in review)
4.1.18
3.18.27
3.14.61

How to reproduce the problem:
Boot kernel with slub debugging enabled (otherwise memory corruption
will cause random oopses later instead of immediately)
Plug in USB 3.0 disk to xhci USB 3.0 port
dd if=/dev/sdc of=/dev/null bs=65536
(where /dev/sdc is the USB 3.0 disk)
Unplug USB cable while dd is still going
Oops is immediate:

Reported-by: Tony Battersby &lt;tonyb@cybernetics.com&gt;
Cc: Du, Changbin &lt;changbin.du@intel.com&gt;
Cc: Roger Quadros &lt;rogerq@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit e5bdfd50d6f76077bf8441d130c606229e100d40 upstream.

This reverts commit d8f00cd685f5c8e0def8593e520a7fef12c22407.

Tony writes:

This upstream commit is causing an oops:
d8f00cd685f5 ("usb: hub: do not clear BOS field during reset device")

This patch has already been included in several -stable kernels.  Here
are the affected kernels:
4.5.0-rc4 (current git)
4.4.2
4.3.6 (currently in review)
4.1.18
3.18.27
3.14.61

How to reproduce the problem:
Boot kernel with slub debugging enabled (otherwise memory corruption
will cause random oopses later instead of immediately)
Plug in USB 3.0 disk to xhci USB 3.0 port
dd if=/dev/sdc of=/dev/null bs=65536
(where /dev/sdc is the USB 3.0 disk)
Unplug USB cable while dd is still going
Oops is immediate:

Reported-by: Tony Battersby &lt;tonyb@cybernetics.com&gt;
Cc: Du, Changbin &lt;changbin.du@intel.com&gt;
Cc: Roger Quadros &lt;rogerq@ti.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>usbvision: fix crash on detecting device with invalid configuration</title>
<updated>2016-04-20T06:42:17+00:00</updated>
<author>
<name>Vladis Dronov</name>
<email>vdronov@redhat.com</email>
</author>
<published>2015-11-16T17:55:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=0d8c1f17e86919fbc645ae9283304738476dd67c'/>
<id>0d8c1f17e86919fbc645ae9283304738476dd67c</id>
<content type='text'>
commit fa52bd506f274b7619955917abfde355e3d19ffe upstream.

The usbvision driver crashes when a specially crafted usb device with invalid
number of interfaces or endpoints is detected. This fix adds checks that the
device has proper configuration expected by the driver.

Reported-by: Ralf Spenneberg &lt;ralf@spenneberg.net&gt;
Signed-off-by: Vladis Dronov &lt;vdronov@redhat.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@osg.samsung.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit fa52bd506f274b7619955917abfde355e3d19ffe upstream.

The usbvision driver crashes when a specially crafted usb device with invalid
number of interfaces or endpoints is detected. This fix adds checks that the
device has proper configuration expected by the driver.

Reported-by: Ralf Spenneberg &lt;ralf@spenneberg.net&gt;
Signed-off-by: Vladis Dronov &lt;vdronov@redhat.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@osg.samsung.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>staging: android: ion: Set the length of the DMA sg entries in buffer</title>
<updated>2016-04-20T06:42:16+00:00</updated>
<author>
<name>Liviu Dudau</name>
<email>Liviu.Dudau@arm.com</email>
</author>
<published>2016-01-21T11:57:47+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=440e9a240ca22cbed85bca3d6950cd75e1349775'/>
<id>440e9a240ca22cbed85bca3d6950cd75e1349775</id>
<content type='text'>
commit 70bc916b2c80913753fb188d4daee50a64d21ba0 upstream.

ion_buffer_create() will allocate a buffer and then create a DMA
mapping for it, but it forgot to set the length of the page entries.

Signed-off-by: Liviu Dudau &lt;Liviu.Dudau@arm.com&gt;
Signed-off-by: Jon Medhurst &lt;tixy@linaro.org&gt;
Acked-by: Laura Abbott &lt;labbott@redhat.com&gt;
Cc: Shawn Guo &lt;shawnguo@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 70bc916b2c80913753fb188d4daee50a64d21ba0 upstream.

ion_buffer_create() will allocate a buffer and then create a DMA
mapping for it, but it forgot to set the length of the page entries.

Signed-off-by: Liviu Dudau &lt;Liviu.Dudau@arm.com&gt;
Signed-off-by: Jon Medhurst &lt;tixy@linaro.org&gt;
Acked-by: Laura Abbott &lt;labbott@redhat.com&gt;
Cc: Shawn Guo &lt;shawnguo@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"</title>
<updated>2016-04-20T06:42:16+00:00</updated>
<author>
<name>Bjorn Helgaas</name>
<email>bhelgaas@google.com</email>
</author>
<published>2016-02-17T18:26:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=c1491657c533307ac2f341e1b7ecdf156de3f647'/>
<id>c1491657c533307ac2f341e1b7ecdf156de3f647</id>
<content type='text'>
commit 6c777e8799a93e3bdb67bec622429e1b48dc90fb upstream.

991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and
pcibios_free_irq()") appeared in v4.3 and helps support IOAPIC hotplug.

Олег reported that the Elcus-1553 TA1-PCI driver worked in v4.2 but not
v4.3 and bisected it to 991de2e59090.  Sunjin reported that the RocketRAID
272x driver worked in v4.2 but not v4.3.  In both cases booting with
"pci=routirq" is a workaround.

I think the problem is that after 991de2e59090, we no longer call
pcibios_enable_irq() for upstream bridges.  Prior to 991de2e59090, when a
driver called pci_enable_device(), we recursively called
pcibios_enable_irq() for upstream bridges via pci_enable_bridge().

After 991de2e59090, we call pcibios_enable_irq() from pci_device_probe()
instead of the pci_enable_device() path, which does *not* call
pcibios_enable_irq() for upstream bridges.

Revert 991de2e59090 to fix these driver regressions.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Reported-and-tested-by: Олег Мороз &lt;oleg.moroz@mcc.vniiem.ru&gt;
Reported-by: Sunjin Yang &lt;fan4326@gmail.com&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
CC: Jiang Liu &lt;jiang.liu@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 6c777e8799a93e3bdb67bec622429e1b48dc90fb upstream.

991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and
pcibios_free_irq()") appeared in v4.3 and helps support IOAPIC hotplug.

Олег reported that the Elcus-1553 TA1-PCI driver worked in v4.2 but not
v4.3 and bisected it to 991de2e59090.  Sunjin reported that the RocketRAID
272x driver worked in v4.2 but not v4.3.  In both cases booting with
"pci=routirq" is a workaround.

I think the problem is that after 991de2e59090, we no longer call
pcibios_enable_irq() for upstream bridges.  Prior to 991de2e59090, when a
driver called pci_enable_device(), we recursively called
pcibios_enable_irq() for upstream bridges via pci_enable_bridge().

After 991de2e59090, we call pcibios_enable_irq() from pci_device_probe()
instead of the pci_enable_device() path, which does *not* call
pcibios_enable_irq() for upstream bridges.

Revert 991de2e59090 to fix these driver regressions.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Reported-and-tested-by: Олег Мороз &lt;oleg.moroz@mcc.vniiem.ru&gt;
Reported-by: Sunjin Yang &lt;fan4326@gmail.com&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
CC: Jiang Liu &lt;jiang.liu@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "PCI: Add helpers to manage pci_dev-&gt;irq and pci_dev-&gt;irq_managed"</title>
<updated>2016-04-20T06:42:16+00:00</updated>
<author>
<name>Bjorn Helgaas</name>
<email>bhelgaas@google.com</email>
</author>
<published>2016-02-17T18:26:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2d0d0011ff48f000ec789f9b7e3378886225ec68'/>
<id>2d0d0011ff48f000ec789f9b7e3378886225ec68</id>
<content type='text'>
commit 67b4eab91caf2ad574cab1b17ae09180ea2e116e upstream.

Revert 811a4e6fce09 ("PCI: Add helpers to manage pci_dev-&gt;irq and
pci_dev-&gt;irq_managed").

This is part of reverting 991de2e59090 ("PCI, x86: Implement
pcibios_alloc_irq() and pcibios_free_irq()") to fix regressions it
introduced.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
CC: Jiang Liu &lt;jiang.liu@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 67b4eab91caf2ad574cab1b17ae09180ea2e116e upstream.

Revert 811a4e6fce09 ("PCI: Add helpers to manage pci_dev-&gt;irq and
pci_dev-&gt;irq_managed").

This is part of reverting 991de2e59090 ("PCI, x86: Implement
pcibios_alloc_irq() and pcibios_free_irq()") to fix regressions it
introduced.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
CC: Jiang Liu &lt;jiang.liu@linux.intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>Revert "x86/PCI: Don't alloc pcibios-irq when MSI is enabled"</title>
<updated>2016-04-20T06:42:16+00:00</updated>
<author>
<name>Bjorn Helgaas</name>
<email>bhelgaas@google.com</email>
</author>
<published>2016-02-17T18:26:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=fc9683f24bc4dce3ac67f78f8b393f3c4159319c'/>
<id>fc9683f24bc4dce3ac67f78f8b393f3c4159319c</id>
<content type='text'>
commit fe25d078874f2c29c38f4160467d74f5756537c9 upstream.

Revert 8affb487d4a4 ("x86/PCI: Don't alloc pcibios-irq when MSI is
enabled").

This is part of reverting 991de2e59090 ("PCI, x86: Implement
pcibios_alloc_irq() and pcibios_free_irq()") to fix regressions it
introduced.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
CC: Jiang Liu &lt;jiang.liu@linux.intel.com&gt;
CC: Joerg Roedel &lt;jroedel@suse.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit fe25d078874f2c29c38f4160467d74f5756537c9 upstream.

Revert 8affb487d4a4 ("x86/PCI: Don't alloc pcibios-irq when MSI is
enabled").

This is part of reverting 991de2e59090 ("PCI, x86: Implement
pcibios_alloc_irq() and pcibios_free_irq()") to fix regressions it
introduced.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
CC: Jiang Liu &lt;jiang.liu@linux.intel.com&gt;
CC: Joerg Roedel &lt;jroedel@suse.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>HID: usbhid: fix inconsistent reset/resume/reset-resume behavior</title>
<updated>2016-04-20T06:42:16+00:00</updated>
<author>
<name>Alan Stern</name>
<email>stern@rowland.harvard.edu</email>
</author>
<published>2016-03-23T16:17:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b66a7a3a0947ced3b8dff340e815b708cc4a98a7'/>
<id>b66a7a3a0947ced3b8dff340e815b708cc4a98a7</id>
<content type='text'>
commit 972e6a993f278b416a8ee3ec65475724fc36feb2 upstream.

The usbhid driver has inconsistently duplicated code in its post-reset,
resume, and reset-resume pathways.

	reset-resume doesn't check HID_STARTED before trying to
	restart the I/O queues.

	resume fails to clear the HID_SUSPENDED flag if HID_STARTED
	isn't set.

	resume calls usbhid_restart_queues() with usbhid-&gt;lock held
	and the others call it without holding the lock.

The first item in particular causes a problem following a reset-resume
if the driver hasn't started up its I/O.  URB submission fails because
usbhid-&gt;urbin is NULL, and this triggers an unending reset-retry loop.

This patch fixes the problem by creating a new subroutine,
hid_restart_io(), to carry out all the common activities.  It also
adds some checks that were missing in the original code:

	After a reset, there's no need to clear any halted endpoints.

	After a resume, if a reset is pending there's no need to
	restart any I/O until the reset is finished.

	After a resume, if the interrupt-IN endpoint is halted there's
	no need to submit the input URB until the halt has been
	cleared.

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Reported-by: Daniel Fraga &lt;fragabr@gmail.com&gt;
Tested-by: Daniel Fraga &lt;fragabr@gmail.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 972e6a993f278b416a8ee3ec65475724fc36feb2 upstream.

The usbhid driver has inconsistently duplicated code in its post-reset,
resume, and reset-resume pathways.

	reset-resume doesn't check HID_STARTED before trying to
	restart the I/O queues.

	resume fails to clear the HID_SUSPENDED flag if HID_STARTED
	isn't set.

	resume calls usbhid_restart_queues() with usbhid-&gt;lock held
	and the others call it without holding the lock.

The first item in particular causes a problem following a reset-resume
if the driver hasn't started up its I/O.  URB submission fails because
usbhid-&gt;urbin is NULL, and this triggers an unending reset-retry loop.

This patch fixes the problem by creating a new subroutine,
hid_restart_io(), to carry out all the common activities.  It also
adds some checks that were missing in the original code:

	After a reset, there's no need to clear any halted endpoints.

	After a resume, if a reset is pending there's no need to
	restart any I/O until the reset is finished.

	After a resume, if the interrupt-IN endpoint is halted there's
	no need to submit the input URB until the halt has been
	cleared.

Signed-off-by: Alan Stern &lt;stern@rowland.harvard.edu&gt;
Reported-by: Daniel Fraga &lt;fragabr@gmail.com&gt;
Tested-by: Daniel Fraga &lt;fragabr@gmail.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>HID: wacom: fix Bamboo ONE oops</title>
<updated>2016-04-20T06:42:15+00:00</updated>
<author>
<name>Benjamin Tissoires</name>
<email>benjamin.tissoires@redhat.com</email>
</author>
<published>2016-03-25T14:26:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f174a1fd2c0e577646a1263f7c7d01e588ca28bd'/>
<id>f174a1fd2c0e577646a1263f7c7d01e588ca28bd</id>
<content type='text'>
commit 580549ef6b3e3fb3b958de490ca99f43a089a2cf upstream.

Looks like recent changes in the Wacom driver made the Bamboo ONE crashes.
The tablet behaves as if it was a regular Bamboo device with pen, touch
and pad, but there is no physical pad connected to it.
The weird part is that the pad is still sending events and given that
there is no input node connected to it, we get  anull pointer exception.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1317116

Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Acked-by: Ping Cheng &lt;pingc@wacom.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 580549ef6b3e3fb3b958de490ca99f43a089a2cf upstream.

Looks like recent changes in the Wacom driver made the Bamboo ONE crashes.
The tablet behaves as if it was a regular Bamboo device with pen, touch
and pad, but there is no physical pad connected to it.
The weird part is that the pad is still sending events and given that
there is no input node connected to it, we get  anull pointer exception.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=1317116

Signed-off-by: Benjamin Tissoires &lt;benjamin.tissoires@redhat.com&gt;
Acked-by: Ping Cheng &lt;pingc@wacom.com&gt;
Signed-off-by: Jiri Kosina &lt;jkosina@suse.cz&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>ALSA: usb-audio: Skip volume controls triggers hangup on Dell USB Dock</title>
<updated>2016-04-20T06:42:15+00:00</updated>
<author>
<name>Kailang Yang</name>
<email>kailang@realtek.com</email>
</author>
<published>2016-04-12T02:55:03+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d622dad32621a1a33ba74b1b29a19cfd5abe069f'/>
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commit adcdd0d5a1cb779f6d455ae70882c19c527627a8 upstream.

This is Dell usb dock audio workaround.
It was fixed the master volume keep lower.

[Some background: the patch essentially skips the controls of a couple
 of FU volumes.  Although the firmware exposes the dB and the value
 information via the usb descriptor, changing the values (we set the
 min volume as default) screws up the device.  Although this has been
 fixed in the newer firmware, the devices are shipped with the old
 firmware, thus we need the workaround in the driver side.  -- tiwai]

Signed-off-by: Kailang Yang &lt;kailang@realtek.com&gt;
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

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commit adcdd0d5a1cb779f6d455ae70882c19c527627a8 upstream.

This is Dell usb dock audio workaround.
It was fixed the master volume keep lower.

[Some background: the patch essentially skips the controls of a couple
 of FU volumes.  Although the firmware exposes the dB and the value
 information via the usb descriptor, changing the values (we set the
 min volume as default) screws up the device.  Although this has been
 fixed in the newer firmware, the devices are shipped with the old
 firmware, thus we need the workaround in the driver side.  -- tiwai]

Signed-off-by: Kailang Yang &lt;kailang@realtek.com&gt;
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

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