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Filename Latest commit message Latest commit date
Heikki Krogerus ad74b8649b usb: typec: ucsi: Preliminary support for alternate modes
With UCSI the alternate modes, just like everything else
related to USB Type-C connectors, are handled in firmware.
The operating system can see the status and is allowed to
request certain things, for example entering and exiting the
modes, but the support for alternate modes is very limited
in UCSI. The feature is also optional, which means that even
when the platform supports alternate modes, the operating
system may not be even made aware of them.

UCSI does not support direct VDM reading or writing.
Instead, alternate modes can be entered and exited using a
single custom command which takes also an optional SVID
specific configuration value as parameter. That means every
supported alternate mode has to be handled separately in
UCSI driver.

This commit does not include support for any specific
alternate mode. The discovered alternate modes are now
registered, but binding a driver to an alternate mode will
not be possible until support for that alternate mode is
added to the UCSI driver.

Tested-by: Ajay Gupta <ajayg@nvidia.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-25 11:03:53 +02:00
arch A collection of x86 and ARM bugfixes, and some improvements to documentation. 2019-03-31 08:55:59 -07:00
block
certs
crypto
Documentation usb: typec: ucsi: ccg: add firmware flashing support 2019-04-25 11:03:53 +02:00
drivers usb: typec: ucsi: Preliminary support for alternate modes 2019-04-25 11:03:53 +02:00
fs Merge branch 'akpm' (patches from Andrew) 2019-03-29 16:02:28 -07:00
include phy: for 5.2 2019-04-25 10:49:34 +02:00
init
ipc
kernel Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-31 08:22:12 -07:00
lib for-linus-20190329 2019-03-29 14:43:07 -07:00
LICENSES
mm mm/migrate.c: add missing flush_dcache_page for non-mapped page migrate 2019-03-29 10:01:37 -07:00
net A patch to avoid choking on multipage bvecs in the messenger and 2019-03-29 14:41:09 -07:00
samples
scripts Merge branch 'akpm' (patches from Andrew) 2019-03-29 16:02:28 -07:00
security LSM: Revive CONFIG_DEFAULT_SECURITY_* for "make oldconfig" 2019-03-29 14:08:49 -07:00
sound sound fixes for 5.1-rc3 2019-03-29 14:53:33 -07:00
tools A collection of x86 and ARM bugfixes, and some improvements to documentation. 2019-03-31 08:55:59 -07:00
usr
virt KVM/ARM fixes for 5.1 2019-03-28 19:07:30 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add Changbin Du 2019-03-29 10:01:37 -07:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS phy: for 5.2 2019-04-25 10:49:34 +02:00
Makefile Linux 5.1-rc3 2019-03-31 14:39:29 -07:00
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.