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Wen Chen 01f60348d8 drm/amd/display: Fix 'failed to blank crtc!'
[why]
DCN35 is having “DC: failed to blank crtc!” when running HPO
test cases. It's caused by not having sufficient udelay time.

[how]
Replace the old wait_for_blank_complete function with fsleep function to
sleep just until the next frame should come up. This way it doesn't poll
in case the pixel clock or other clock was bugged or until vactive and
the vblank are hit again.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Wen Chen <Wen.Chen3@amd.com>
Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-06-24 09:55:49 -04:00
arch Merge tag 'drm-msm-next-2025-05-16' of https://gitlab.freedesktop.org/drm/msm into drm-next 2025-05-19 11:05:58 +10:00
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Documentation Driver Changes: 2025-05-29 07:43:10 +10:00
drivers drm/amd/display: Fix 'failed to blank crtc!' 2025-06-24 09:55:49 -04:00
fs cifs and smb3 client fixes 2025-05-02 14:37:16 -07:00
include Nova changes for v6.16 2025-05-21 05:49:31 +10:00
init
io_uring io_uring/fdinfo: annotate racy sq/cq head/tail reads 2025-04-30 07:17:17 -06:00
ipc
kernel tracing updates for v6.15 2025-05-04 10:15:42 -07:00
lib Merge drm/drm-next into drm-misc-next 2025-05-06 09:09:49 +02:00
LICENSES
mm slab fix for 6.15-rc5 2025-05-02 08:50:10 -07:00
net Happy May Day. 2025-05-01 10:37:49 -07:00
rust Nova changes for v6.16 2025-05-21 05:49:31 +10:00
samples Nova changes for v6.16 2025-05-21 05:49:31 +10:00
scripts checkpatch: remove %p4cn 2025-05-06 11:33:49 -04:00
security
sound ASoC: Fixes for v6.15 2025-05-01 10:22:20 +02:00
tools perf tools fixes for v6.15-rc5 2025-05-04 12:57:18 -07:00
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.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
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MAINTAINERS Nova changes for v6.16 2025-05-21 05:49:31 +10:00
Makefile Linux 6.15-rc5 2025-05-04 13:55:04 -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 reStructuredText 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.