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Manivannan Sadhasivam b6dc68ac96 bus: mhi: ep: Power up/down MHI stack during MHI RESET 
[ Upstream commit 47a1dcaea0 ]

During graceful shutdown scenario, host will issue MHI RESET to the
endpoint device before initiating shutdown. In that case, it makes sense
to completely power down the MHI stack as sooner or later the access to
MMIO registers will be prohibited. Also, the stack needs to be powered
up in the case of SYS_ERR to recover the device.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://lore.kernel.org/r/20221228161704.255268-2-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Stable-dep-of: 1ddc761829 ("bus: mhi: ep: Change state_lock to mutex")
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-03-17 08:50:19 +01:00
arch KVM: VMX: Do _all_ initialization before exposing /dev/kvm to userspace 2023-03-17 08:50:17 +01:00
block Revert "blk-cgroup: dropping parent refcount after pd_free_fn() is done" 2023-03-11 11:03:45 +01:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: rsa-pkcs1pad - Use akcipher_request_complete 2023-03-10 09:33:03 +01:00
Documentation usb: gadget: uvc: Make bSourceID read/write 2023-03-11 13:55:38 +01:00
drivers bus: mhi: ep: Power up/down MHI stack during MHI RESET 2023-03-17 08:50:19 +01:00
fs udf: Fix off-by-one error when discarding preallocation 2023-03-17 08:50:19 +01:00
include fd: dlm: trace send/recv of dlm message and rcom 2023-03-17 08:50:18 +01:00
init gcc: disable -Warray-bounds for gcc-11 too 2023-01-14 10:33:43 +01:00
io_uring io_uring/uring_cmd: ensure that device supports IOPOLL 2023-03-17 08:50:14 +01:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel fork: allow CLONE_NEWTIME in clone3 flags 2023-03-17 08:50:14 +01:00
lib sbitmap: Try each queue to wake up at least one waiter 2023-03-10 09:34:34 +01:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm memory tier: release the new_memtier in find_create_memory_tier() 2023-03-10 09:34:27 +01:00
net nfc: change order inside nfc_se_io error path 2023-03-17 08:50:17 +01:00
rust rust: print: avoid evaluating arguments in pr_* macros in unsafe blocks 2023-02-06 08:06:34 +01:00
samples ftrace: Export ftrace_free_filter() to modules 2023-02-01 08:34:37 +01:00
scripts gcc-plugins: drop -std=gnu++11 to fix GCC 13 build 2023-03-10 09:33:51 +01:00
security ima: Align ima_file_mmap() parameters with mmap_file LSM hook 2023-03-10 09:34:15 +01:00
sound ASoC: mediatek: mt8195: add missing initialization 2023-03-11 13:55:31 +01:00
tools perf inject: Fix --buildid-all not to eat up MMAP2 2023-03-17 08:50:14 +01:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt KVM: Register /dev/kvm as the _very_ last thing during initialization 2023-03-10 09:34:11 +01:00
.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 audit: update the mailing list in MAINTAINERS 2023-02-25 11:25:42 +01:00
Makefile Linux 6.1.19 2023-03-13 10:21:32 +01:00
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.