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Srinivas Kandagatla 434446e794 BACKPORT: nvmem: core: add NVMEM_SYSFS Kconfig
Many nvmem providers are not very keen on having default sysfs
nvmem entry, as most of the usecases for them are inside kernel
itself. And in some cases read/writes to some areas in nvmem are
restricted and trapped at secure monitor level, so accessing them
from userspace would result in board reboots.

This patch adds new NVMEM_SYSFS Kconfig to make binary sysfs entry
an optional one. This provision will give more flexibility to users.
This patch also moves existing sysfs code to a new file so that its
not compiled in when its not really required.

Bug: 154188491
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Gaurav Kohli <gkohli@codeaurora.org>
Tested-by: Gaurav Kohli <gkohli@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit ae0c2d7255)
Signed-off-by: Will McVicker <willmcvicker@google.com>
[willmcvicker: resolved trivial merge conflicts]
Change-Id: I648edb8d43fc7c2437c415b999c41657a6d11554
2020-04-16 12:19:27 -07:00
arch ANDROID: gki_defconfig: Enable CONFIG_IRQ_TIME_ACCOUNTING 2020-04-14 16:20:46 +00:00
block ANDROID: block: require drivers to declare supported crypto key type(s) 2020-04-07 17:57:33 +00:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto UPSTREAM: crypto: skcipher - Introduce crypto_sync_skcipher 2020-03-12 10:46:18 -07:00
Documentation BACKPORT: nvmem: core: add NVMEM_SYSFS Kconfig 2020-04-16 12:19:27 -07:00
drivers BACKPORT: nvmem: core: add NVMEM_SYSFS Kconfig 2020-04-16 12:19:27 -07:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs ANDROID: Incremental fs: Fix create_file performance 2020-04-16 18:01:12 +00:00
include UPSTREAM: nvmem: add support for cell info 2020-04-16 12:19:27 -07:00
init ANDROID: GKI: add hidden V4L2_MEM2MEM_DEV 2020-04-13 21:58:26 +00:00
ipc This is the 4.19.107 stable release 2020-03-03 07:33:01 +01:00
kernel UPSTREAM: kheaders: include only headers into kheaders_data.tar.xz 2020-04-16 18:00:25 +00:00
lib ANDROID: GKI: export symbols from abi_gki_aarch64_qcom_whitelist 2020-04-13 21:36:41 +00:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm Revert "UPSTREAM: mm, page_alloc: spread allocations across zones before introducing fragmentation" 2020-04-14 19:36:13 +08:00
net BACKPORT: nl80211: Add per peer statistics to compute FCS error rate 2020-04-14 12:57:22 -07:00
samples FROMGIT: samples/hw_breakpoint: drop use of kallsyms_lookup_name() 2020-03-12 11:18:49 +00:00
scripts BACKPORT: FROMGIT: kbuild: mkcompile_h: Include $LD version in /proc/version 2020-04-09 15:16:12 +00:00
security ANDROID: GKI: security: Add mmap export symbols for modules 2020-04-13 16:30:04 -07:00
sound ANDROID: GKI: sound: usb: Add snd_usb_enable_audio_stream/find_snd_usb_substream 2020-04-14 12:57:13 -07:00
tools ANDROID: Incremental fs: Clean up incfs_test build process 2020-04-13 20:45:13 +00:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: Check for a bad hva before dropping into the ghc slow path 2020-03-05 16:42:21 +01:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
abi_gki_aarch64_cuttlefish_whitelist ANDROID: ABI/Whitelist: update for Cuttlefish 2020-02-12 11:11:16 +00:00
abi_gki_aarch64_qcom_whitelist ANDROID: GKI: Bulk ABI update 2020-04-14 13:02:51 -07:00
abi_gki_aarch64_whitelist ANDROID: abi_gki_aarch64_whitelist: add module_layout and task_struct 2020-03-05 09:07:15 +00:00
abi_gki_aarch64.xml ANDROID: GKI: Bulk ABI update 2020-04-16 19:14:23 +00:00
build.config.aarch64 ANDROID: refactor build.config files to remove duplication 2019-10-22 18:27:12 -07:00
build.config.allmodconfig ANDROID: fix allmodconfig build to use the right toolchain 2020-04-14 15:40:56 +00:00
build.config.allmodconfig.aarch64 ANDROID: Add allmodconfig build.configs for x86_64 and aarch64 2019-11-12 20:55:23 +00:00
build.config.allmodconfig.arm ANDROID: Add build.config files for ARM 32-bit 2020-03-16 17:43:55 +00:00
build.config.allmodconfig.x86_64 ANDROID: Add allmodconfig build.configs for x86_64 and aarch64 2019-11-12 20:55:23 +00:00
build.config.arm ANDROID: Add build.config files for ARM 32-bit 2020-03-16 17:43:55 +00:00
build.config.common ANDROID: build.config.common: Add BUILDTOOLS_PREBUILT_BIN 2020-04-16 18:00:31 +00:00
build.config.gki ANDROID: gki: Removed cf modules from gki_defconfig 2020-01-31 16:23:38 -08:00
build.config.gki-debug.aarch64 ANDROID: Add build.config.gki-debug.aarch64 2020-03-16 14:29:13 +00:00
build.config.gki-debug.x86_64 ANDROID: Add build.config.gki-debug.x86_64 2020-03-16 14:29:13 +00:00
build.config.gki.aarch64 ANDROID: Add ABI Whitelist for qcom 2020-02-28 23:45:43 +00:00
build.config.gki.x86_64 ANDROID: refactor build.config files to remove duplication 2019-10-22 18:27:12 -07:00
build.config.x86_64 ANDROID: refactor build.config files to remove duplication 2019-10-22 18:27:12 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS This is the 4.19.107 stable release 2020-03-03 07:33:01 +01:00
Makefile This is the 4.19.115 stable release 2020-04-13 13:09:17 +02:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

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.
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.