drm/amd/display: Ensure dtbclk is enabled

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[why]
ensure dtbclk is enabled before hdmistreamclk_en

pmfw could stop dtbclk on idle.
driver needs to ensure dtbclk enabled is enabled before hdmistreamclk_en
also disable debounce timer on dcn42.

Reviewed-by: Chris Park <chris.park@amd.com>
Reviewed-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Charlene Liu 2026-06-30 15:56:06 -04:00 • committed by Alex Deucher

parent 7cc88c0d56

commit 807d6345bc

5 changed files with 46 additions and 6 deletions

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28

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn42/dcn42_clk_mgr.c

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1

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn42/dcn42_clk_mgr.h

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4

drivers/gpu/drm/amd/display/dc/dce/dce_clock_source.c

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1

drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h

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18

drivers/gpu/drm/amd/display/dc/link/protocols/link_hdmi_frl.c

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