drm/amd/display: fix __udivdi3 link error

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When compiling the AMDGPU display driver for 32-bit architectures,
the linker reports undefined reference to `__udivdi3` in functions
get_dp_dto_frequency_100hz() and dcn401_get_dp_dto_frequency_100hz().

This is because the code uses 64-bit division (/) on 32-bit systems,
which GCC cannot handle directly and instead tries to call the missing
__udivdi3 helper function.

Replace the raw division with div_u64(), the kernel's standard 64-bit
division helper, to avoid the link error.

Signed-off-by: Linlin Yang <yanglinlin@kylinos.cn>
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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yanglinlin 2026-07-13 11:12:28 +08:00 • committed by Alex Deucher

parent 4e2c082150

commit 0421fc6ab3

1 changed files with 5 additions and 6 deletions

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

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