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Hans de Goede 43d2a61ceb gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option 
commit 2ccb21f551 upstream.

Commit aa23ca3d98 ("gpiolib: acpi: Add honor_wakeup module-option +
quirk mechanism") was added to deal with spurious wakeups on one specific
model of the HP x2 10 series.

The approach taken there was to add a bool controlling wakeup support for
all ACPI GPIO events. This was sufficient for the specific HP x2 10 model
the commit was trying to fix, but in the mean time other models have
turned up which need a similar workaround to avoid spurious wakeups from
suspend, but only for one of the pins on which the ACPI tables request
ACPI GPIO events.

Since the honor_wakeup option was added to be able to ignore wake events,
the name was perhaps not the best, this commit renames it to ignore_wake
and changes it to a string with the following format:
gpiolib_acpi.ignore_wake=controller@pin[,controller@pin[,...]]

This allows working around spurious wakeup issues on a per pin basis.

This commit also reworks the existing quirk for the HP x2 10 so that
it functions as before.

Note:
-This removes the honor_wakeup parameter. This has only been upstream for
 a short time and to the best of my knowledge there are no users using
 this module parameter.

-The controller@pin[,controller@pin[,...]] syntax is based on an existing
 kernel module parameter using the same controller@pin format. That version
 uses ';' as separator, but in practice that is problematic because grub2
 cannot handle this without taking special care to escape the ';', so here
 we are using a ',' as separator instead which does not have this issue.

Fixes: aa23ca3d98 ("gpiolib: acpi: Add honor_wakeup module-option + quirk mechanism")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200302111225.6641-2-hdegoede@redhat.com
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2020-04-01 11:02:03 +02:00
Documentation dt-bindings: net: FMan erratum A050385 2020-04-01 11:01:52 +02:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
arch x86/ioremap: Fix CONFIG_EFI=n build 2020-04-01 11:01:59 +02:00
block block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group() 2020-03-25 08:25:49 +01:00
certs PKCS#7: Refactor verify_pkcs7_signature() 2019-08-05 18:40:18 -04:00
crypto crypto: rename sm3-256 to sm3 in hash_algo_name 2020-02-28 17:22:26 +01:00
drivers gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option 2020-04-01 11:02:03 +02:00
fs ceph: fix memory leak in ceph_cleanup_snapid_map() 2020-04-01 11:01:59 +02:00
include mm: fork: fix kernel_stack memcg stats for various stack implementations 2020-04-01 11:02:03 +02:00
init kbuild: remove header compile test 2020-03-05 16:43:47 +01:00
ipc Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" 2020-02-28 17:22:20 +01:00
kernel mm: fork: fix kernel_stack memcg stats for various stack implementations 2020-04-01 11:02:03 +02:00
lib kbuild: move headers_check rule to usr/include/Makefile 2020-03-05 16:43:47 +01:00
mm mm: fork: fix kernel_stack memcg stats for various stack implementations 2020-04-01 11:02:03 +02:00
net mac80211: mark station unauthorized before key removal 2020-04-01 11:02:01 +02:00
samples samples/bpf: Set -fno-stack-protector when building BPF programs 2020-02-24 08:36:36 +01:00
scripts scripts/dtc: Remove redundant YYLOC global declaration 2020-04-01 11:02:00 +02:00
security efi: Only print errors about failing to get certs if EFI vars are found 2020-03-12 13:00:14 +01:00
sound ALSA: hda/realtek: Fix pop noise on ALC225 2020-03-25 08:25:59 +01:00
tools tools: Let O= makes handle a relative path with -C option 2020-04-01 11:02:00 +02:00
usr kbuild: fix 'No such file or directory' warning when cleaning 2020-03-12 13:00:09 +01:00
virt KVM: Check for a bad hva before dropping into the ghc slow path 2020-03-05 16:43:48 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2019-08-31 10:00:51 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Modules updates for v5.4 2019-09-22 10:34:46 -07:00
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer 2019-10-10 08:12:51 -07:00
Kbuild kbuild: do not descend to ./Kbuild when cleaning 2019-08-21 21:03:58 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS MAINTAINERS: Update drm/i915 bug filing URL 2020-02-28 17:22:19 +01:00
Makefile Linux 5.4.28 2020-03-25 08:26:00 +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.