drm/amd/display: Fallback to boot snapshot for dispclk

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commit 30d937f63b upstream.

[WHY & HOW]
If the dentist is unavailable, fallback to reading CLKIP via the boot
snapshot to get the current dispclk.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2ab77600d1)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Dillon Varone 2026-02-18 14:34:28 -05:00 • committed by Greg Kroah-Hartman

parent b9a944d0a1

commit 1a34999922

1 changed files with 5 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c

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