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Badhri Jagan Sridharan dca7c99651 tcpm: Avoid soft reset when partner does not support get_status commit `78e0ea4277` upstream. When partner does not support get_status message, tcpm right now responds with soft reset message. This causes PD renegotiation to happen and resets PPS link. Avoid soft resetting the link when partner does not support get_status message to mitigate PPS resets. [ 208.926752] Setting voltage/current limit 9500 mV 2450 mA [ 208.930407] set_auto_vbus_discharge_threshold mode:3 pps_active:y vbus:9500 ret:0 [ 208.930418] state change SNK_TRANSITION_SINK -> SNK_READY [rev3 POWER_NEGOTIATION] [ 208.930455] AMS POWER_NEGOTIATION finished // ALERT message from the Source [ 213.948442] PD RX, header: 0x19a6 [1] [ 213.948451] state change SNK_READY -> GET_STATUS_SEND [rev3 GETTING_SOURCE_SINK_STATUS] [ 213.948457] PD TX, header: 0x492 [ 213.950402] PD TX complete, status: 0 [ 213.950427] pending state change GET_STATUS_SEND -> GET_STATUS_SEND_TIMEOUT @ 60 ms [rev3 GETTING_SOURCE_SINK_STATUS] // NOT_SUPPORTED from the Source [ 213.959954] PD RX, header: 0xbb0 [1] // sink sends SOFT_RESET [ 213.959958] state change GET_STATUS_SEND -> SNK_SOFT_RESET [rev3 GETTING_SOURCE_SINK_STATUS] [ 213.959962] AMS GETTING_SOURCE_SINK_STATUS finished [ 213.959964] AMS SOFT_RESET_AMS start [ 213.959966] state change SNK_SOFT_RESET -> AMS_START [rev3 SOFT_RESET_AMS] [ 213.959969] state change AMS_START -> SOFT_RESET_SEND [rev3 SOFT_RESET_AMS] Cc: stable@vger.kernel.org Fixes: `8dea75e113` ("usb: typec: tcpm: Protocol Error handling") Signed-off-by: Badhri Jagan Sridharan <badhri@google.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20230820044449.1005889-1-badhri@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2023-09-06 21:27:02 +01:00
arch	mmc: au1xmmc: force non-modular build and remove symbol_get usage	2023-09-06 21:26:59 +01:00
block	blk-crypto: dynamically allocate fallback profile	2023-08-23 17:52:39 +02:00
certs	certs: Fix build error when PKCS#11 URI contains semicolon	2023-02-09 11:28:11 +01:00
crypto	crypto: jitter - correct health test during initialization	2023-07-19 16:21:42 +02:00
Documentation	ACPI: thermal: Drop nocrt parameter	2023-09-02 09:16:18 +02:00
drivers	tcpm: Avoid soft reset when partner does not support get_status	2023-09-06 21:27:02 +01:00
fs	ksmbd: reduce descriptor size if remaining bytes is less than request size	2023-09-06 21:26:59 +01:00
include	module: Expose module_init_layout_section()	2023-09-02 09:16:18 +02:00
init	x86/mm: Initialize text poking earlier	2023-08-08 20:03:49 +02:00
io_uring	io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc	2023-09-02 09:16:19 +02:00
ipc	ipc: fix memory leak in init_mqueue_fs()	2022-12-31 13:32:01 +01:00
kernel	modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules	2023-09-06 21:27:00 +01:00
lib	maple_tree: disable mas_wr_append() when other readers are possible	2023-08-30 16:11:13 +02:00
LICENSES	LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers	2021-12-16 14:33:10 +01:00
mm	madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check	2023-08-30 16:11:11 +02:00
net	can: raw: add missing refcount for memory leak fix	2023-08-30 16:11:11 +02:00
rust	rust: allocator: Prevent mis-aligned allocation	2023-08-11 12:08:18 +02:00
samples	samples: ftrace: Save required argument registers in sample trampolines	2023-07-23 13:49:44 +02:00
scripts	gcc-plugins: Reorganize gimple includes for GCC 13	2023-08-16 18:27:20 +02:00
security	selinux: set next pointer before attaching to list	2023-08-30 16:11:07 +02:00
sound	ALSA: usb-audio: Fix init call orders for UAC1	2023-09-06 21:27:00 +01:00
tools	selftests/net: mv bpf/nat6to4.c to net folder	2023-08-30 16:11:10 +02:00
usr	usr/gen_init_cpio.c: remove unnecessary -1 values from int file	2022-10-03 14:21:44 -07:00
virt	KVM: Grab a reference to KVM for VM and vCPU stats file descriptors	2023-08-03 10:24:08 +02:00
.clang-format	inet: ping: use hlist_nulls rcu iterator during lookup	2022-12-01 12:42:46 +01:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	get_maintainer: add Alan to .get_maintainer.ignore	2022-08-20 15:17:44 -07:00
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	Kbuild: add Rust support	2022-09-28 09:02:20 +02:00
.mailmap	9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address	2022-12-10 17:10:52 -08:00
.rustfmt.toml	rust: add `.rustfmt.toml`	2022-09-28 09:02:20 +02:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Remove Michal Marek from Kbuild maintainers	2022-11-16 14:53:00 +09:00
Kbuild	Kbuild updates for v6.1	2022-10-10 12:00:45 -07:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	devlink: move code to a dedicated directory	2023-08-30 16:11:00 +02:00
Makefile	Linux 6.1.51	2023-09-02 09:16:20 +02:00
README	Drop all 00-INDEX files from Documentation/	2018-09-09 15:08:58 -06:00

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.