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Filename Latest commit message Latest commit date
Zi Yu Liao 1ca068ed34 drm/amd/display: fix DMCU hang when going into Modern Standby
[why]
When the system is going into suspend, set_backlight gets called
after the eDP got blanked. Since smooth brightness is enabled,
the driver will make a call into the DMCU to ramp the brightness.
The DMCU would try to enable ABM to do so. But since the display is
blanked, this ends up causing ABM1_ACE_DBUF_REG_UPDATE_PENDING to
get stuck at 1, which results in a dead lock in the DMCU firmware.

[how]
Disable brightness ramping when the eDP display is blanked.

Signed-off-by: Zi Yu Liao <ziyu.liao@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-07-18 14:17:19 -05:00
arch Merge branch 'topic/remove-fbcon-notifiers' into drm-misc-next 2019-06-19 12:33:05 +02:00
block
certs
crypto
Documentation Merge commit 'refs/for-upstream/mali-dp' of git://linux-arm.org/linux-ld into drm-next 2019-06-25 12:56:40 +10:00
drivers drm/amd/display: fix DMCU hang when going into Modern Standby 2019-07-18 14:17:19 -05:00
fs
include drm/amdgpu: extend AMDGPU_CTX_PRIORITY_NORMAL comment 2019-07-16 13:08:30 -05:00
init
ipc
kernel Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-06-16 07:22:56 -10:00
lib
LICENSES
mm Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next 2019-06-21 12:18:16 +10:00
net
samples
scripts
security
sound
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge branch 'vmwgfx-next' of git://people.freedesktop.org/~thomash/linux into drm-next 2019-06-21 12:18:16 +10:00
Makefile Linux 5.2-rc5 2019-06-16 08:49:45 -10:00
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.