<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/usb/typec, branch v6.8.3</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>usb: typec: ucsi: Clear UCSI_CCI_RESET_COMPLETE before reset</title>
<updated>2024-04-03T13:32:48+00:00</updated>
<author>
<name>Christian A. Ehrhardt</name>
<email>lk@c--e.de</email>
</author>
<published>2024-03-20T07:39:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=152a6505570e4f987b1c36f9d3090e4a92900eea'/>
<id>152a6505570e4f987b1c36f9d3090e4a92900eea</id>
<content type='text'>
commit 3de4f996a0b5412aa451729008130a488f71563e upstream.

Check the UCSI_CCI_RESET_COMPLETE complete flag before starting
another reset. Use a UCSI_SET_NOTIFICATION_ENABLE command to clear
the flag if it is set.

Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Cc: stable &lt;stable@kernel.org&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-6-lk@c--e.de
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 3de4f996a0b5412aa451729008130a488f71563e upstream.

Check the UCSI_CCI_RESET_COMPLETE complete flag before starting
another reset. Use a UCSI_SET_NOTIFICATION_ENABLE command to clear
the flag if it is set.

Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Cc: stable &lt;stable@kernel.org&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-6-lk@c--e.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: ucsi_acpi: Refactor and fix DELL quirk</title>
<updated>2024-04-03T13:32:48+00:00</updated>
<author>
<name>Christian A. Ehrhardt</name>
<email>lk@c--e.de</email>
</author>
<published>2024-03-20T07:39:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=2c1166f875e9f17f0ffd28eee4fd84235a1f6d22'/>
<id>2c1166f875e9f17f0ffd28eee4fd84235a1f6d22</id>
<content type='text'>
commit 6aaceb7d9cd00f3e065dc4b054ecfe52c5253b03 upstream.

Some DELL systems don't like UCSI_ACK_CC_CI commands with the
UCSI_ACK_CONNECTOR_CHANGE but not the UCSI_ACK_COMMAND_COMPLETE
bit set. The current quirk still leaves room for races because
it requires two consecutive ACK commands to be sent.

Refactor and significantly simplify the quirk to fix this:
Send a dummy command and bundle the connector change ack with the
command completion ack in a single UCSI_ACK_CC_CI command.
This removes the need to probe for the quirk.

While there define flag bits for struct ucsi_acpi-&gt;flags in ucsi_acpi.c
and don't re-use definitions from ucsi.h for struct ucsi-&gt;flags.

Fixes: f3be347ea42d ("usb: ucsi_acpi: Quirk to ack a connector change ack cmd")
Cc: stable@vger.kernel.org
Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-5-lk@c--e.de
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 6aaceb7d9cd00f3e065dc4b054ecfe52c5253b03 upstream.

Some DELL systems don't like UCSI_ACK_CC_CI commands with the
UCSI_ACK_CONNECTOR_CHANGE but not the UCSI_ACK_COMMAND_COMPLETE
bit set. The current quirk still leaves room for races because
it requires two consecutive ACK commands to be sent.

Refactor and significantly simplify the quirk to fix this:
Send a dummy command and bundle the connector change ack with the
command completion ack in a single UCSI_ACK_CC_CI command.
This removes the need to probe for the quirk.

While there define flag bits for struct ucsi_acpi-&gt;flags in ucsi_acpi.c
and don't re-use definitions from ucsi.h for struct ucsi-&gt;flags.

Fixes: f3be347ea42d ("usb: ucsi_acpi: Quirk to ack a connector change ack cmd")
Cc: stable@vger.kernel.org
Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-5-lk@c--e.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: ucsi: Ack unsupported commands</title>
<updated>2024-04-03T13:32:47+00:00</updated>
<author>
<name>Christian A. Ehrhardt</name>
<email>lk@c--e.de</email>
</author>
<published>2024-03-20T07:39:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=5a550f6c002e8082cc00e1dfa280bd8ffb097324'/>
<id>5a550f6c002e8082cc00e1dfa280bd8ffb097324</id>
<content type='text'>
commit 6b5c85ddeea77d18c4b69e3bda60e9374a20c304 upstream.

If a command completes the OPM must send an ack. This applies
to unsupported commands, too.

Send the required ACK for unsupported commands.

Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Cc: stable &lt;stable@kernel.org&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-4-lk@c--e.de
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 6b5c85ddeea77d18c4b69e3bda60e9374a20c304 upstream.

If a command completes the OPM must send an ack. This applies
to unsupported commands, too.

Send the required ACK for unsupported commands.

Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Cc: stable &lt;stable@kernel.org&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-4-lk@c--e.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: ucsi: Clear EVENT_PENDING under PPM lock</title>
<updated>2024-04-03T13:32:47+00:00</updated>
<author>
<name>Christian A. Ehrhardt</name>
<email>lk@c--e.de</email>
</author>
<published>2024-03-20T07:39:22+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=3a3d4442bf7329b29c4a1790310b108bfa358491'/>
<id>3a3d4442bf7329b29c4a1790310b108bfa358491</id>
<content type='text'>
commit 15b2e71b4653b3e13df34695a29ebeee237c5af2 upstream.

Suppose we sleep on the PPM lock after clearing the EVENT_PENDING
bit because the thread for another connector is executing a command.
In this case the command completion of the other command will still
report the connector change for our connector.

Clear the EVENT_PENDING bit under the PPM lock to avoid another
useless call to ucsi_handle_connector_change() in this case.

Fixes: c9aed03a0a68 ("usb: ucsi: Add missing ppm_lock")
Cc: stable &lt;stable@kernel.org&gt;
Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-2-lk@c--e.de
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 15b2e71b4653b3e13df34695a29ebeee237c5af2 upstream.

Suppose we sleep on the PPM lock after clearing the EVENT_PENDING
bit because the thread for another connector is executing a command.
In this case the command completion of the other command will still
report the connector change for our connector.

Clear the EVENT_PENDING bit under the PPM lock to avoid another
useless call to ucsi_handle_connector_change() in this case.

Fixes: c9aed03a0a68 ("usb: ucsi: Add missing ppm_lock")
Cc: stable &lt;stable@kernel.org&gt;
Signed-off-by: Christian A. Ehrhardt &lt;lk@c--e.de&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Tested-by: Neil Armstrong &lt;neil.armstrong@linaro.org&gt; # on SM8550-QRD
Link: https://lore.kernel.org/r/20240320073927.1641788-2-lk@c--e.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: Return size of buffer if pd_set operation succeeds</title>
<updated>2024-04-03T13:32:47+00:00</updated>
<author>
<name>Kyle Tso</name>
<email>kyletso@google.com</email>
</author>
<published>2024-03-19T07:43:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=86aa881b262752827888fd8ab9d708499b298d85'/>
<id>86aa881b262752827888fd8ab9d708499b298d85</id>
<content type='text'>
commit 53f5094fdf5deacd99b8655df692e9278506724d upstream.

The attribute writing should return the number of bytes used from the
buffer on success.

Fixes: a7cff92f0635 ("usb: typec: USB Power Delivery helpers for ports and partners")
Cc: stable@vger.kernel.org
Signed-off-by: Kyle Tso &lt;kyletso@google.com&gt;
Reviewed-by: Guenter Roeck &lt;linux@roeck-us.net&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240319074309.3306579-1-kyletso@google.com
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 53f5094fdf5deacd99b8655df692e9278506724d upstream.

The attribute writing should return the number of bytes used from the
buffer on success.

Fixes: a7cff92f0635 ("usb: typec: USB Power Delivery helpers for ports and partners")
Cc: stable@vger.kernel.org
Signed-off-by: Kyle Tso &lt;kyletso@google.com&gt;
Reviewed-by: Guenter Roeck &lt;linux@roeck-us.net&gt;
Reviewed-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240319074309.3306579-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: tcpm: Update PD of Type-C port upon pd_set</title>
<updated>2024-04-03T13:32:47+00:00</updated>
<author>
<name>Kyle Tso</name>
<email>kyletso@google.com</email>
</author>
<published>2024-03-11T17:23:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=94703e7f1f0890d67ded4743521628502035910f'/>
<id>94703e7f1f0890d67ded4743521628502035910f</id>
<content type='text'>
commit 17af5050dead6cbcca12c1fcd17e0bb8bb284eae upstream.

The PD of Type-C port needs to be updated in pd_set. Unlink the Type-C
port device to the old PD before linking it to a new one.

Fixes: cd099cde4ed2 ("usb: typec: tcpm: Support multiple capabilities")
Cc: stable@vger.kernel.org
Signed-off-by: Kyle Tso &lt;kyletso@google.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240311172306.3911309-1-kyletso@google.com
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 17af5050dead6cbcca12c1fcd17e0bb8bb284eae upstream.

The PD of Type-C port needs to be updated in pd_set. Unlink the Type-C
port device to the old PD before linking it to a new one.

Fixes: cd099cde4ed2 ("usb: typec: tcpm: Support multiple capabilities")
Cc: stable@vger.kernel.org
Signed-off-by: Kyle Tso &lt;kyletso@google.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240311172306.3911309-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: tcpm: Correct port source pdo array in pd_set callback</title>
<updated>2024-04-03T13:32:47+00:00</updated>
<author>
<name>Kyle Tso</name>
<email>kyletso@google.com</email>
</author>
<published>2024-03-11T14:45:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=df7318bf221945ca8c09b2d09572343b469722d3'/>
<id>df7318bf221945ca8c09b2d09572343b469722d3</id>
<content type='text'>
commit 893cd9469c68a89a34956121685617dbb37497b1 upstream.

In tcpm_pd_set, the array of port source capabilities is port-&gt;src_pdo,
not port-&gt;snk_pdo.

Fixes: cd099cde4ed2 ("usb: typec: tcpm: Support multiple capabilities")
Cc: stable@vger.kernel.org
Signed-off-by: Kyle Tso &lt;kyletso@google.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240311144500.3694849-1-kyletso@google.com
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 893cd9469c68a89a34956121685617dbb37497b1 upstream.

In tcpm_pd_set, the array of port source capabilities is port-&gt;src_pdo,
not port-&gt;snk_pdo.

Fixes: cd099cde4ed2 ("usb: typec: tcpm: Support multiple capabilities")
Cc: stable@vger.kernel.org
Signed-off-by: Kyle Tso &lt;kyletso@google.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240311144500.3694849-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: tcpm: fix double-free issue in tcpm_port_unregister_pd()</title>
<updated>2024-04-03T13:32:47+00:00</updated>
<author>
<name>Xu Yang</name>
<email>xu.yang_2@nxp.com</email>
</author>
<published>2024-03-11T06:52:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=242e425ed580b2f4dbcb86c8fc03a410a4084a69'/>
<id>242e425ed580b2f4dbcb86c8fc03a410a4084a69</id>
<content type='text'>
commit b63f90487bdf93a4223ce7853d14717e9d452856 upstream.

When unregister pd capabilitie in tcpm, KASAN will capture below double
-free issue. The root cause is the same capabilitiy will be kfreed twice,
the first time is kfreed by pd_capabilities_release() and the second time
is explicitly kfreed by tcpm_port_unregister_pd().

[    3.988059] BUG: KASAN: double-free in tcpm_port_unregister_pd+0x1a4/0x3dc
[    3.995001] Free of addr ffff0008164d3000 by task kworker/u16:0/10
[    4.001206]
[    4.002712] CPU: 2 PID: 10 Comm: kworker/u16:0 Not tainted 6.8.0-rc5-next-20240220-05616-g52728c567a55 #53
[    4.012402] Hardware name: Freescale i.MX8QXP MEK (DT)
[    4.017569] Workqueue: events_unbound deferred_probe_work_func
[    4.023456] Call trace:
[    4.025920]  dump_backtrace+0x94/0xec
[    4.029629]  show_stack+0x18/0x24
[    4.032974]  dump_stack_lvl+0x78/0x90
[    4.036675]  print_report+0xfc/0x5c0
[    4.040289]  kasan_report_invalid_free+0xa0/0xc0
[    4.044937]  __kasan_slab_free+0x124/0x154
[    4.049072]  kfree+0xb4/0x1e8
[    4.052069]  tcpm_port_unregister_pd+0x1a4/0x3dc
[    4.056725]  tcpm_register_port+0x1dd0/0x2558
[    4.061121]  tcpci_register_port+0x420/0x71c
[    4.065430]  tcpci_probe+0x118/0x2e0

To fix the issue, this will remove kree() from tcpm_port_unregister_pd().

Fixes: cd099cde4ed2 ("usb: typec: tcpm: Support multiple capabilities")
cc: stable@vger.kernel.org
Suggested-by: Aisheng Dong &lt;aisheng.dong@nxp.com&gt;
Signed-off-by: Xu Yang &lt;xu.yang_2@nxp.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240311065219.777037-1-xu.yang_2@nxp.com
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 b63f90487bdf93a4223ce7853d14717e9d452856 upstream.

When unregister pd capabilitie in tcpm, KASAN will capture below double
-free issue. The root cause is the same capabilitiy will be kfreed twice,
the first time is kfreed by pd_capabilities_release() and the second time
is explicitly kfreed by tcpm_port_unregister_pd().

[    3.988059] BUG: KASAN: double-free in tcpm_port_unregister_pd+0x1a4/0x3dc
[    3.995001] Free of addr ffff0008164d3000 by task kworker/u16:0/10
[    4.001206]
[    4.002712] CPU: 2 PID: 10 Comm: kworker/u16:0 Not tainted 6.8.0-rc5-next-20240220-05616-g52728c567a55 #53
[    4.012402] Hardware name: Freescale i.MX8QXP MEK (DT)
[    4.017569] Workqueue: events_unbound deferred_probe_work_func
[    4.023456] Call trace:
[    4.025920]  dump_backtrace+0x94/0xec
[    4.029629]  show_stack+0x18/0x24
[    4.032974]  dump_stack_lvl+0x78/0x90
[    4.036675]  print_report+0xfc/0x5c0
[    4.040289]  kasan_report_invalid_free+0xa0/0xc0
[    4.044937]  __kasan_slab_free+0x124/0x154
[    4.049072]  kfree+0xb4/0x1e8
[    4.052069]  tcpm_port_unregister_pd+0x1a4/0x3dc
[    4.056725]  tcpm_register_port+0x1dd0/0x2558
[    4.061121]  tcpci_register_port+0x420/0x71c
[    4.065430]  tcpci_probe+0x118/0x2e0

To fix the issue, this will remove kree() from tcpm_port_unregister_pd().

Fixes: cd099cde4ed2 ("usb: typec: tcpm: Support multiple capabilities")
cc: stable@vger.kernel.org
Suggested-by: Aisheng Dong &lt;aisheng.dong@nxp.com&gt;
Signed-off-by: Xu Yang &lt;xu.yang_2@nxp.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240311065219.777037-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: ucsi: Fix race between typec_switch and role_switch</title>
<updated>2024-04-03T13:32:47+00:00</updated>
<author>
<name>Krishna Kurapati</name>
<email>quic_kriskura@quicinc.com</email>
</author>
<published>2024-03-01T04:09:14+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=c82cbe7ef532800ddba472438d6fb3ca17ceb6be'/>
<id>c82cbe7ef532800ddba472438d6fb3ca17ceb6be</id>
<content type='text'>
commit f5e9bda03aa50ffad36eccafe893d004ef213c43 upstream.

When orientation switch is enabled in ucsi glink, there is a xhci
probe failure seen when booting up in host mode in reverse
orientation.

During bootup the following things happen in multiple drivers:

a) DWC3 controller driver initializes the core in device mode when the
dr_mode is set to DRD. It relies on role_switch call to change role to
host.

b) QMP driver initializes the lanes to TYPEC_ORIENTATION_NORMAL as a
normal routine. It relies on the typec_switch_set call to get notified
of orientation changes.

c) UCSI core reads the UCSI_GET_CONNECTOR_STATUS via the glink and
provides initial role switch to dwc3 controller.

When booting up in host mode with orientation TYPEC_ORIENTATION_REVERSE,
then we see the following things happening in order:

a) UCSI gives initial role as host to dwc3 controller ucsi_register_port.
Upon receiving this notification, the dwc3 core needs to program GCTL from
PRTCAP_DEVICE to PRTCAP_HOST and as part of this change, it asserts GCTL
Core soft reset and waits for it to be  completed before shifting it to
host. Only after the reset is done will the dwc3_host_init be invoked and
xhci is probed. DWC3 controller expects that the usb phy's are stable
during this process i.e., the phy init is already done.

b) During the 100ms wait for GCTL core soft reset, the actual notification
from PPM is received by ucsi_glink via pmic glink for changing role to
host. The pmic_glink_ucsi_notify routine first sends the orientation
change to QMP and then sends role to dwc3 via ucsi framework. This is
happening exactly at the time GCTL core soft reset is being processed.

c) When QMP driver receives typec switch to TYPEC_ORIENTATION_REVERSE, it
then re-programs the phy at the instant GCTL core soft reset has been
asserted by dwc3 controller due to which the QMP PLL lock fails in
qmp_combo_usb_power_on.

d) After the 100ms of GCTL core soft reset is completed, the dwc3 core
goes for initializing the host mode and invokes xhci probe. But at this
point the QMP is non-responsive and as a result, the xhci plat probe fails
during xhci_reset.

Fix this by passing orientation switch to available ucsi instances if
their gpio configuration is available before ucsi_register is invoked so
that by the time, the pmic_glink_ucsi_notify provides typec_switch to QMP,
the lane is already configured and the call would be a NOP thus not racing
with role switch.

Cc: stable@vger.kernel.org
Fixes: c6165ed2f425 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
Suggested-by: Wesley Cheng &lt;quic_wcheng@quicinc.com&gt;
Signed-off-by: Krishna Kurapati &lt;quic_kriskura@quicinc.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240301040914.458492-1-quic_kriskura@quicinc.com
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 f5e9bda03aa50ffad36eccafe893d004ef213c43 upstream.

When orientation switch is enabled in ucsi glink, there is a xhci
probe failure seen when booting up in host mode in reverse
orientation.

During bootup the following things happen in multiple drivers:

a) DWC3 controller driver initializes the core in device mode when the
dr_mode is set to DRD. It relies on role_switch call to change role to
host.

b) QMP driver initializes the lanes to TYPEC_ORIENTATION_NORMAL as a
normal routine. It relies on the typec_switch_set call to get notified
of orientation changes.

c) UCSI core reads the UCSI_GET_CONNECTOR_STATUS via the glink and
provides initial role switch to dwc3 controller.

When booting up in host mode with orientation TYPEC_ORIENTATION_REVERSE,
then we see the following things happening in order:

a) UCSI gives initial role as host to dwc3 controller ucsi_register_port.
Upon receiving this notification, the dwc3 core needs to program GCTL from
PRTCAP_DEVICE to PRTCAP_HOST and as part of this change, it asserts GCTL
Core soft reset and waits for it to be  completed before shifting it to
host. Only after the reset is done will the dwc3_host_init be invoked and
xhci is probed. DWC3 controller expects that the usb phy's are stable
during this process i.e., the phy init is already done.

b) During the 100ms wait for GCTL core soft reset, the actual notification
from PPM is received by ucsi_glink via pmic glink for changing role to
host. The pmic_glink_ucsi_notify routine first sends the orientation
change to QMP and then sends role to dwc3 via ucsi framework. This is
happening exactly at the time GCTL core soft reset is being processed.

c) When QMP driver receives typec switch to TYPEC_ORIENTATION_REVERSE, it
then re-programs the phy at the instant GCTL core soft reset has been
asserted by dwc3 controller due to which the QMP PLL lock fails in
qmp_combo_usb_power_on.

d) After the 100ms of GCTL core soft reset is completed, the dwc3 core
goes for initializing the host mode and invokes xhci probe. But at this
point the QMP is non-responsive and as a result, the xhci plat probe fails
during xhci_reset.

Fix this by passing orientation switch to available ucsi instances if
their gpio configuration is available before ucsi_register is invoked so
that by the time, the pmic_glink_ucsi_notify provides typec_switch to QMP,
the lane is already configured and the call would be a NOP thus not racing
with role switch.

Cc: stable@vger.kernel.org
Fixes: c6165ed2f425 ("usb: ucsi: glink: use the connector orientation GPIO to provide switch events")
Suggested-by: Wesley Cheng &lt;quic_wcheng@quicinc.com&gt;
Signed-off-by: Krishna Kurapati &lt;quic_kriskura@quicinc.com&gt;
Acked-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20240301040914.458492-1-quic_kriskura@quicinc.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: typec: ucsi: Clean up UCSI_CABLE_PROP macros</title>
<updated>2024-04-03T13:32:12+00:00</updated>
<author>
<name>Jameson Thies</name>
<email>jthies@google.com</email>
</author>
<published>2024-03-05T02:58:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=8f4b09d2472eae0fe2af7997ab5650a2b0e26934'/>
<id>8f4b09d2472eae0fe2af7997ab5650a2b0e26934</id>
<content type='text'>
[ Upstream commit 4d0a5a9915793377c0fe1a8d78de6bcd92cea963 ]

Clean up UCSI_CABLE_PROP macros by fixing a bitmask shifting error for
plug type and updating the modal support macro for consistent naming.

Fixes: 3cf657f07918 ("usb: typec: ucsi: Remove all bit-fields")
Cc: stable@vger.kernel.org
Reviewed-by: Benson Leung &lt;bleung@chromium.org&gt;
Reviewed-by: Prashant Malani &lt;pmalani@chromium.org&gt;
Reviewed-by: Dmitry Baryshkov &lt;dmitry.baryshkov@linaro.org&gt;
Signed-off-by: Jameson Thies &lt;jthies@google.com&gt;
Link: https://lore.kernel.org/r/20240305025804.1290919-2-jthies@google.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 4d0a5a9915793377c0fe1a8d78de6bcd92cea963 ]

Clean up UCSI_CABLE_PROP macros by fixing a bitmask shifting error for
plug type and updating the modal support macro for consistent naming.

Fixes: 3cf657f07918 ("usb: typec: ucsi: Remove all bit-fields")
Cc: stable@vger.kernel.org
Reviewed-by: Benson Leung &lt;bleung@chromium.org&gt;
Reviewed-by: Prashant Malani &lt;pmalani@chromium.org&gt;
Reviewed-by: Dmitry Baryshkov &lt;dmitry.baryshkov@linaro.org&gt;
Signed-off-by: Jameson Thies &lt;jthies@google.com&gt;
Link: https://lore.kernel.org/r/20240305025804.1290919-2-jthies@google.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
