<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/arch/arm, branch v3.18.99</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>ARM: mvebu: Fix broken PL310_ERRATA_753970 selects</title>
<updated>2018-03-11T15:12:17+00:00</updated>
<author>
<name>Ulf Magnusson</name>
<email>ulfalizer@gmail.com</email>
</author>
<published>2018-02-05T01:21:13+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1f9a8e9ae4cb039ea4f246e70c6dc4b5feeab249'/>
<id>1f9a8e9ae4cb039ea4f246e70c6dc4b5feeab249</id>
<content type='text'>
commit 8aa36a8dcde3183d84db7b0d622ffddcebb61077 upstream.

The MACH_ARMADA_375 and MACH_ARMADA_38X boards select ARM_ERRATA_753970,
but it was renamed to PL310_ERRATA_753970 by commit fa0ce4035d48 ("ARM:
7162/1: errata: tidy up Kconfig options for PL310 errata workarounds").

Fix the selects to use the new name.

Discovered with the
https://github.com/ulfalizer/Kconfiglib/blob/master/examples/list_undefined.py
script.
Fixes: fa0ce4035d48 ("ARM: 7162/1: errata: tidy up Kconfig options for
PL310 errata workarounds"
cc: stable@vger.kernel.org
Signed-off-by: Ulf Magnusson &lt;ulfalizer@gmail.com&gt;
Signed-off-by: Gregory CLEMENT &lt;gregory.clement@bootlin.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 8aa36a8dcde3183d84db7b0d622ffddcebb61077 upstream.

The MACH_ARMADA_375 and MACH_ARMADA_38X boards select ARM_ERRATA_753970,
but it was renamed to PL310_ERRATA_753970 by commit fa0ce4035d48 ("ARM:
7162/1: errata: tidy up Kconfig options for PL310 errata workarounds").

Fix the selects to use the new name.

Discovered with the
https://github.com/ulfalizer/Kconfiglib/blob/master/examples/list_undefined.py
script.
Fixes: fa0ce4035d48 ("ARM: 7162/1: errata: tidy up Kconfig options for
PL310 errata workarounds"
cc: stable@vger.kernel.org
Signed-off-by: Ulf Magnusson &lt;ulfalizer@gmail.com&gt;
Signed-off-by: Gregory CLEMENT &lt;gregory.clement@bootlin.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: am4372: Correct the interrupts_properties of McASP</title>
<updated>2018-02-25T10:01:19+00:00</updated>
<author>
<name>Peter Ujfalusi</name>
<email>peter.ujfalusi@ti.com</email>
</author>
<published>2017-11-01T09:03:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=0edf1fd1cdaa5302999fcae6e98c3a4169ef910f'/>
<id>0edf1fd1cdaa5302999fcae6e98c3a4169ef910f</id>
<content type='text'>
[ Upstream commit 627395a6f8091c0aa18f49dca7df59ba3ec147ef ]

Fixes the following warnings:

arch/arm/boot/dts/am437x-cm-t43.dtb: Warning (interrupts_property):
interrupts size is (8), expected multiple of 12 in
/ocp@44000000/mcasp@48038000

arch/arm/boot/dts/am437x-cm-t43.dtb: Warning (interrupts_property):
interrupts size is (8), expected multiple of 12 in
/ocp@44000000/mcasp@4803C000

Signed-off-by: Peter Ujfalusi &lt;peter.ujfalusi@ti.com&gt;
Signed-off-by: Tony Lindgren &lt;tony@atomide.com&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@microsoft.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>
[ Upstream commit 627395a6f8091c0aa18f49dca7df59ba3ec147ef ]

Fixes the following warnings:

arch/arm/boot/dts/am437x-cm-t43.dtb: Warning (interrupts_property):
interrupts size is (8), expected multiple of 12 in
/ocp@44000000/mcasp@48038000

arch/arm/boot/dts/am437x-cm-t43.dtb: Warning (interrupts_property):
interrupts size is (8), expected multiple of 12 in
/ocp@44000000/mcasp@4803C000

Signed-off-by: Peter Ujfalusi &lt;peter.ujfalusi@ti.com&gt;
Signed-off-by: Tony Lindgren &lt;tony@atomide.com&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@microsoft.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: AM33xx: PRM: Remove am33xx_pwrdm_read_prev_pwrst function</title>
<updated>2018-02-25T10:01:19+00:00</updated>
<author>
<name>Keerthy</name>
<email>j-keerthy@ti.com</email>
</author>
<published>2017-11-10T11:26:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=6c73b9c4853a2020cd54cc119b659ac7a283e59c'/>
<id>6c73b9c4853a2020cd54cc119b659ac7a283e59c</id>
<content type='text'>
[ Upstream commit b6d6af7226465b6d11eac09d0be2ab78a4a9eb62 ]

Referring TRM Am335X series:
http://www.ti.com/lit/ug/spruh73p/spruh73p.pdf

The LastPowerStateEntered bitfield is present only for PM_CEFUSE
domain. This is not present in any of the other power domains. Hence
remove the generic am33xx_pwrdm_read_prev_pwrst hook which wrongly
reads the reserved bit fields for all the other power domains.

Reading the reserved bits leads to wrongly interpreting the low
power transitions for various power domains that do not have the
LastPowerStateEntered field. The pm debug counters values are wrong
currently as we are incrementing them based on the reserved bits.

Signed-off-by: Keerthy &lt;j-keerthy@ti.com&gt;
Signed-off-by: Tony Lindgren &lt;tony@atomide.com&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@microsoft.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>
[ Upstream commit b6d6af7226465b6d11eac09d0be2ab78a4a9eb62 ]

Referring TRM Am335X series:
http://www.ti.com/lit/ug/spruh73p/spruh73p.pdf

The LastPowerStateEntered bitfield is present only for PM_CEFUSE
domain. This is not present in any of the other power domains. Hence
remove the generic am33xx_pwrdm_read_prev_pwrst hook which wrongly
reads the reserved bit fields for all the other power domains.

Reading the reserved bits leads to wrongly interpreting the low
power transitions for various power domains that do not have the
LastPowerStateEntered field. The pm debug counters values are wrong
currently as we are incrementing them based on the reserved bits.

Signed-off-by: Keerthy &lt;j-keerthy@ti.com&gt;
Signed-off-by: Tony Lindgren &lt;tony@atomide.com&gt;
Signed-off-by: Sasha Levin &lt;alexander.levin@microsoft.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: s5pv210: add interrupt-parent for ohci</title>
<updated>2018-02-25T10:01:17+00:00</updated>
<author>
<name>Arnd Bergmann</name>
<email>arnd@arndb.de</email>
</author>
<published>2018-01-10T16:10:11+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=d61961121a46934b0c4a57747f2e774f3eef4ceb'/>
<id>d61961121a46934b0c4a57747f2e774f3eef4ceb</id>
<content type='text'>
commit 5c1037196b9ee75897c211972de370ed1336ec8f upstream.

The ohci-hcd node has an interrupt number but no interrupt-parent,
leading to a warning with current dtc versions:

arch/arm/boot/dts/s5pv210-aquila.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-goni.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-smdkc110.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-smdkv210.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-torbreck.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000

As seen from the related exynos dts files, the ohci and ehci controllers
always share one interrupt number, and the number is the same here as
well, so setting the same interrupt-parent is the reasonable solution
here.

Reviewed-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Arnd Bergmann &lt;arnd@arndb.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 5c1037196b9ee75897c211972de370ed1336ec8f upstream.

The ohci-hcd node has an interrupt number but no interrupt-parent,
leading to a warning with current dtc versions:

arch/arm/boot/dts/s5pv210-aquila.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-goni.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-smdkc110.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-smdkv210.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000
arch/arm/boot/dts/s5pv210-torbreck.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/ohci@ec300000

As seen from the related exynos dts files, the ohci and ehci controllers
always share one interrupt number, and the number is the same here as
well, so setting the same interrupt-parent is the reasonable solution
here.

Reviewed-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>arm: spear13xx: Fix spics gpio controller's warning</title>
<updated>2018-02-25T10:01:16+00:00</updated>
<author>
<name>Viresh Kumar</name>
<email>viresh.kumar@linaro.org</email>
</author>
<published>2018-01-11T05:58:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=055fdc77edff024b7a991a8388f7a24f1b75d5bc'/>
<id>055fdc77edff024b7a991a8388f7a24f1b75d5bc</id>
<content type='text'>
commit f8975cb1b8a36d0839b6365235778dd9df1d04ca upstream.

This fixes the following warning by also sending the flags argument for
gpio controllers:

Property 'cs-gpios', cell 6 is not a phandle reference in
/ahb/apb/spi@e0100000

Fixes: 8113ba917dfa ("ARM: SPEAr: DT: Update device nodes")
Cc: stable@vger.kernel.org # v3.8+
Reported-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Signed-off-by: Olof Johansson &lt;olof@lixom.net&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 f8975cb1b8a36d0839b6365235778dd9df1d04ca upstream.

This fixes the following warning by also sending the flags argument for
gpio controllers:

Property 'cs-gpios', cell 6 is not a phandle reference in
/ahb/apb/spi@e0100000

Fixes: 8113ba917dfa ("ARM: SPEAr: DT: Update device nodes")
Cc: stable@vger.kernel.org # v3.8+
Reported-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Signed-off-by: Olof Johansson &lt;olof@lixom.net&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>arm: spear13xx: Fix dmas cells</title>
<updated>2018-02-25T10:01:15+00:00</updated>
<author>
<name>Viresh Kumar</name>
<email>viresh.kumar@linaro.org</email>
</author>
<published>2018-01-11T05:58:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=67df924c852c5864c3eec6255605fede2a7d16ed'/>
<id>67df924c852c5864c3eec6255605fede2a7d16ed</id>
<content type='text'>
commit cdd10409914184c7eee5ae3e11beb890c9c16c61 upstream.

The "dmas" cells for the designware DMA controller need to have only 3
properties apart from the phandle: request line, src master and
destination master. But the commit 6e8887f60f60 updated it incorrectly
while moving from platform code to DT. Fix it.

Cc: stable@vger.kernel.org # v3.10+
Fixes: 6e8887f60f60 ("ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT")
Reported-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Signed-off-by: Olof Johansson &lt;olof@lixom.net&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 cdd10409914184c7eee5ae3e11beb890c9c16c61 upstream.

The "dmas" cells for the designware DMA controller need to have only 3
properties apart from the phandle: request line, src master and
destination master. But the commit 6e8887f60f60 updated it incorrectly
while moving from platform code to DT. Fix it.

Cc: stable@vger.kernel.org # v3.10+
Fixes: 6e8887f60f60 ("ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT")
Reported-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Signed-off-by: Olof Johansson &lt;olof@lixom.net&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>arm: spear600: Add missing interrupt-parent of rtc</title>
<updated>2018-02-25T10:01:15+00:00</updated>
<author>
<name>Viresh Kumar</name>
<email>viresh.kumar@linaro.org</email>
</author>
<published>2018-01-11T05:58:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=b943222b208149c5233ce97a2f4641cfbca3d82a'/>
<id>b943222b208149c5233ce97a2f4641cfbca3d82a</id>
<content type='text'>
commit 6ffb5b4f248fe53e0361b8cbc2a523b432566442 upstream.

The interrupt-parent of rtc was missing, add it.

Fixes: 8113ba917dfa ("ARM: SPEAr: DT: Update device nodes")
Cc: stable@vger.kernel.org # v3.8+
Reported-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Signed-off-by: Olof Johansson &lt;olof@lixom.net&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 6ffb5b4f248fe53e0361b8cbc2a523b432566442 upstream.

The interrupt-parent of rtc was missing, add it.

Fixes: 8113ba917dfa ("ARM: SPEAr: DT: Update device nodes")
Cc: stable@vger.kernel.org # v3.8+
Reported-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Signed-off-by: Olof Johansson &lt;olof@lixom.net&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: exynos_defconfig: Enable NFSv4 client</title>
<updated>2018-02-16T19:14:42+00:00</updated>
<author>
<name>Krzysztof Kozlowski</name>
<email>k.kozlowski@samsung.com</email>
</author>
<published>2015-11-25T04:09:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=1b50c4e9e71a89a3b573eaee82669d50578ca74e'/>
<id>1b50c4e9e71a89a3b573eaee82669d50578ca74e</id>
<content type='text'>
commit 1c1fb9b0c89a2506e556114c813a606bc1508d49 upstream.

NFS client is already enabled (NFS_FS) and by default it enables clients
for version 2 and 3. Enable explicitly the version 4 client to utilize
the newer protocol.

The NFS client is especially useful for testing kernel in automated
environments (network boot with network file system).

Signed-off-by: Krzysztof Kozlowski &lt;k.kozlowski@samsung.com&gt;
Reviewed-by: Javier Martinez Canillas &lt;javier@osg.samsung.com&gt;
Signed-off-by: Guillaume Tucker &lt;guillaume.tucker@collabora.com&gt;
Reviewed-by: Krzysztof Kozlowski &lt;krzk@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 1c1fb9b0c89a2506e556114c813a606bc1508d49 upstream.

NFS client is already enabled (NFS_FS) and by default it enables clients
for version 2 and 3. Enable explicitly the version 4 client to utilize
the newer protocol.

The NFS client is especially useful for testing kernel in automated
environments (network boot with network file system).

Signed-off-by: Krzysztof Kozlowski &lt;k.kozlowski@samsung.com&gt;
Reviewed-by: Javier Martinez Canillas &lt;javier@osg.samsung.com&gt;
Signed-off-by: Guillaume Tucker &lt;guillaume.tucker@collabora.com&gt;
Reviewed-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: exynos_defconfig: Enable options to mount a rootfs via NFS</title>
<updated>2018-02-16T19:14:41+00:00</updated>
<author>
<name>Javier Martinez Canillas</name>
<email>javier.martinez@collabora.co.uk</email>
</author>
<published>2015-03-26T16:50:16+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=60a86dc311258a3f10451884654397446ef931ad'/>
<id>60a86dc311258a3f10451884654397446ef931ad</id>
<content type='text'>
commit 19f79ccf6d77409cd138bce8db206cdac7fd5ea7 upstream.

This patch enables the options to mount a rootfs over NFS and also
support for automatic configuration of IP addresses during boot as
needed by NFS.

Signed-off-by: Javier Martinez Canillas &lt;javier.martinez@collabora.co.uk&gt;
Signed-off-by: Kukjin Kim &lt;kgene@kernel.org&gt;
Signed-off-by: Guillaume Tucker &lt;guillaume.tucker@collabora.com&gt;
Reviewed-by: Krzysztof Kozlowski &lt;krzk@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 19f79ccf6d77409cd138bce8db206cdac7fd5ea7 upstream.

This patch enables the options to mount a rootfs over NFS and also
support for automatic configuration of IP addresses during boot as
needed by NFS.

Signed-off-by: Javier Martinez Canillas &lt;javier.martinez@collabora.co.uk&gt;
Signed-off-by: Kukjin Kim &lt;kgene@kernel.org&gt;
Signed-off-by: Guillaume Tucker &lt;guillaume.tucker@collabora.com&gt;
Reviewed-by: Krzysztof Kozlowski &lt;krzk@kernel.org&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ARM: dts: kirkwood: fix pin-muxing of MPP7 on OpenBlocks A7</title>
<updated>2018-01-31T13:46:12+00:00</updated>
<author>
<name>Thomas Petazzoni</name>
<email>thomas.petazzoni@free-electrons.com</email>
</author>
<published>2018-01-04T16:53:12+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=e89b22a8b329b84ae4447373436f600fba28b437'/>
<id>e89b22a8b329b84ae4447373436f600fba28b437</id>
<content type='text'>
commit 56aeb07c914a616ab84357d34f8414a69b140cdf upstream.

MPP7 is currently muxed as "gpio", but this function doesn't exist for
MPP7, only "gpo" is available. This causes the following error:

kirkwood-pinctrl f1010000.pin-controller: unsupported function gpio on pin mpp7
pinctrl core: failed to register map default (6): invalid type given
kirkwood-pinctrl f1010000.pin-controller: error claiming hogs: -22
kirkwood-pinctrl f1010000.pin-controller: could not claim hogs: -22
kirkwood-pinctrl f1010000.pin-controller: unable to register pinctrl driver
kirkwood-pinctrl: probe of f1010000.pin-controller failed with error -22

So the pinctrl driver is not probed, all device drivers (including the
UART driver) do a -EPROBE_DEFER, and therefore the system doesn't
really boot (well, it boots, but with no UART, and no devices that
require pin-muxing).

Back when the Device Tree file for this board was introduced, the
definition was already wrong. The pinctrl driver also always described
as "gpo" this function for MPP7. However, between Linux 4.10 and 4.11,
a hog pin failing to be muxed was turned from a simple warning to a
hard error that caused the entire pinctrl driver probe to bail
out. This is probably the result of commit 6118714275f0a ("pinctrl:
core: Fix pinctrl_register_and_init() with pinctrl_enable()").

This commit fixes the Device Tree to use the proper "gpo" function for
MPP7, which fixes the boot of OpenBlocks A7, which was broken since
Linux 4.11.

Fixes: f24b56cbcd9d ("ARM: kirkwood: add support for OpenBlocks A7 platform")
Signed-off-by: Thomas Petazzoni &lt;thomas.petazzoni@free-electrons.com&gt;
Reviewed-by: Andrew Lunn &lt;andrew@lunn.ch&gt;
Signed-off-by: Gregory CLEMENT &lt;gregory.clement@free-electrons.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

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commit 56aeb07c914a616ab84357d34f8414a69b140cdf upstream.

MPP7 is currently muxed as "gpio", but this function doesn't exist for
MPP7, only "gpo" is available. This causes the following error:

kirkwood-pinctrl f1010000.pin-controller: unsupported function gpio on pin mpp7
pinctrl core: failed to register map default (6): invalid type given
kirkwood-pinctrl f1010000.pin-controller: error claiming hogs: -22
kirkwood-pinctrl f1010000.pin-controller: could not claim hogs: -22
kirkwood-pinctrl f1010000.pin-controller: unable to register pinctrl driver
kirkwood-pinctrl: probe of f1010000.pin-controller failed with error -22

So the pinctrl driver is not probed, all device drivers (including the
UART driver) do a -EPROBE_DEFER, and therefore the system doesn't
really boot (well, it boots, but with no UART, and no devices that
require pin-muxing).

Back when the Device Tree file for this board was introduced, the
definition was already wrong. The pinctrl driver also always described
as "gpo" this function for MPP7. However, between Linux 4.10 and 4.11,
a hog pin failing to be muxed was turned from a simple warning to a
hard error that caused the entire pinctrl driver probe to bail
out. This is probably the result of commit 6118714275f0a ("pinctrl:
core: Fix pinctrl_register_and_init() with pinctrl_enable()").

This commit fixes the Device Tree to use the proper "gpo" function for
MPP7, which fixes the boot of OpenBlocks A7, which was broken since
Linux 4.11.

Fixes: f24b56cbcd9d ("ARM: kirkwood: add support for OpenBlocks A7 platform")
Signed-off-by: Thomas Petazzoni &lt;thomas.petazzoni@free-electrons.com&gt;
Reviewed-by: Andrew Lunn &lt;andrew@lunn.ch&gt;
Signed-off-by: Gregory CLEMENT &lt;gregory.clement@free-electrons.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;

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