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| author | Gabe Teeger <gabe.teeger@amd.com> | 2026-07-27 10:53:57 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-08-25 18:25:24 -0400 |
| commit | 50eed169c0ab2a433a2ff9e95a3cc45ebb4dafaa (patch) | |
| tree | 65d08571e796c65f3c116f0280433ca2f2385220 /drivers/gpu/drm/amd/display/include | |
| parent | 02be6d6827a00da100f3dc79f301f7cb45d666f6 (diff) | |
| download | linux-next-50eed169c0ab2a433a2ff9e95a3cc45ebb4dafaa.tar.gz linux-next-50eed169c0ab2a433a2ff9e95a3cc45ebb4dafaa.zip | |
drm/amd/display: clamp force_min_dcfclk to dcn42b range
[Why]
The force_min_dcfclk_mhz debug option can request a DCFCLK
outside the dcn42b hardware limits, which risks driving the
clock below its minimum or above its maximum.
[How]
Add a dcn42b_update_clocks wrapper that clamps
force_min_dcfclk_mhz to [200, 600] MHz (0 leaves it disabled)
before calling the shared dcn42_update_clocks, keeping the
clamp specific to dcn42b, and wire it into the dcn42b clk_mgr
funcs.
Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Signed-off-by: Gabe Teeger <gabe.teeger@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/include')
0 files changed, 0 insertions, 0 deletions