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Filename Latest commit message Latest commit date
Mika Westerberg d9018976cd mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell
At least on Lenovo Thinkpad Yoga, the BIOS seems to monitor the SPI-NOR
write protection bit and if it is flipped to read/write it assumes the
BIOS configuration was changed on next reboot. It then, for unknown
reasons, resets the BIOS settings back to default.

We can prevent this by just leaving the write protection bit intact and
let the SPI-NOR driver know whether the device is writable or not. In
case of this particular Lenovo the SPI-NOR flash will be exposed as
read-only.

Fixes: ff00d7a32a ("mfd: lpc_ich: Add support for SPI serial flash host controller")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=195951
Reported-by: Abdó Roig-Marange <abdo.roig@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-05 08:46:01 +01:00
arch Merge branches 'ib-mfd-arm-i2c-4.14', 'ib-mfd-arm-usb-video-4.14', 'ib-mfd-hwmon-4.14', 'ib-mfd-iio-pwm-4.14', 'ib-mfd-input-rtc-4.14', 'ib-mfd-many-4.14' and 'ib-mfd-pinctrl-regulator-4.14' into ibs-for-mfd-merged 2017-09-05 08:45:36 +01:00
block
certs
crypto
Documentation dt-bindings: mfd: axp20x: Introduce bindings for AXP813 2017-09-05 08:46:01 +01:00
drivers mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Haswell/Broadwell 2017-09-05 08:46:01 +01:00
firmware
fs Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6 2017-09-01 20:57:27 -07:00
include mfd: syscon: atmel-smc: Add helper to retrieve register layout 2017-09-05 08:46:01 +01:00
init
ipc
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-03 09:30:40 -07:00
lib Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-09-01 10:30:03 -07:00
mm Merge branch 'akpm' (patches from Andrew) 2017-08-31 17:56:56 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 12:49:03 -07:00
samples
scripts scripts/dtc: fix '%zx' warning 2017-08-31 16:33:15 -07:00
security
sound mfd: twl: Move header file out of I2C realm 2017-09-04 14:41:02 +01:00
tools
usr
virt KVM: update to new mmu_notifier semantic v2 2017-08-31 16:13:00 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS mfd: Add ROHM BD9571MWV-M MFD PMIC driver 2017-09-05 08:46:00 +01:00
Makefile Linux 4.13 2017-09-03 13:56:17 -07:00
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.