drm/amd/display: check actual clock value.

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[Why]
Actual dpp/disp clock PMFW set are always equal or more than requested.
Need to cache the actual clock for debugging purpose.

[How]
Add actuall dpp/disp clk in clock manager and save it when set clocks.
Add an ASSERT in case of actual clock less than requested.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Yongqiang Sun 2020-10-30 09:29:07 -04:00 • committed by Alex Deucher

parent b5fce050f0

commit 4b0b1d0526

3 changed files with 16 additions and 3 deletions

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9

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c

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8

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr_vbios_smu.c

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2

drivers/gpu/drm/amd/display/dc/dc.h

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