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Lars Ivar Miljeteig 2c8b8ef501 sy7636a regulator: Add mutex lock for is_enabled
This prevents a screen freeze bug.

If the regulator checks the on-off bit at the same
time as the thermal driver, the regulator_enable
call will conclude that the regulator is already
active.

Then, when the thermal driver is done checking the
temperature, it will set the PMIC back to the state
it was when it started, which is off.

In this state, the regulator driver believes the
PMIC is on, and the thermal has turned it off.

This can be considered a bit of a quick fix, to make
minimal changes to the kernel at this point. The
correct way to solve this would be to make the
sy7636a_thermal driver use the regulator network, or
moving all register access code into the sy7636a mfd
and use a mutex from there.
2020-10-08 20:41:28 +02:00
Documentation MLK-20351-2 Doc: fsl-imx-cspi: Add a description of dmas cells 2018-11-26 15:00:17 +08:00
arch zero-sugar dtb: remove pogo one-wire internal PU 2020-10-08 20:41:27 +02:00
block block: bio_check_eod() needs to consider partitions 2018-10-29 11:10:38 +08:00
certs Replace magic for trusting the secondary keyring with #define 2018-09-09 19:55:54 +02:00
crypto MLK-19826: crypto: ecdh - fix typo of P-192 b value 2018-11-23 12:14:46 +01:00
drivers sy7636a regulator: Add mutex lock for is_enabled 2020-10-08 20:41:28 +02:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs block: add a poll_fn callback to struct request_queue 2018-10-29 11:10:38 +08:00
include max77818-battery-utils: add output of op_descr in START_FGCC_OP/FINISH_FGCC_OP 2020-10-08 20:41:27 +02:00
init init: rename and re-order boot_cpu_state_init() 2018-08-15 18:12:48 +02:00
ipc ipc/sem.c: prevent queue.status tearing in semop 2018-09-05 09:26:30 +02:00
kernel PM: Don't sleep for 10 seconds after wakeup 2020-10-08 20:41:24 +02:00
lib scsi: klist: Make it safe to use klists in atomic context 2018-10-03 17:00:48 -07:00
mm block: add a poll_fn callback to struct request_queue 2018-10-29 11:10:38 +08:00
net brcmfmac: merge in latest driver from Cypress (including required wifi core module updates) 2020-10-08 01:31:33 +02:00
samples samples/bpf: Check the error of write() and read() 2018-08-24 13:09:12 +02:00
scripts dtc: fix issue caused by GCC 10.x defaulting to -fno-common 2020-10-08 20:41:28 +02:00
security Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" 2018-09-29 03:06:04 -07:00
sound MLK-17817-2: ASoC: imx-ak4458: enable 16 channels in TDM mode 2018-12-06 16:42:30 +02:00
tools perf tools: Fix snprint warnings for gcc 8 2018-10-18 09:16:28 +02:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: arm/arm64: Fix vgic init race 2018-09-26 08:38:04 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS dt-bindings: Document mti,mips-cpc binding 2018-03-15 10:54:35 +01:00
Makefile Linux 4.14.78 2018-10-20 09:48:54 +02:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.