Re: [PATCH] drm/amd/display: Fix a compilation failure on PowerPC caused by FPU code

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Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> writes:
> We got a report from Stephen/Michael that the PowerPC build was failing
> with the following error:
>
> ld: drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.o uses hard float, drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.o uses soft float
> ld: failed to merge target specific data of file drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.o
>
> This error happened because of the function optc3_set_vrr_m_const. This
> function expects a double as a parameter in a code that is not allowed
> to have FPU operations. After further investigation, it became clear
> that optc3_set_vrr_m_const was never invoked, so we can safely drop this
> function and fix the ld issue.
>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: Melissa Wen <mwen@xxxxxxxxxx>
> Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> Reported-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
> Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
> ---
>  drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.c        | 8 --------
>  drivers/gpu/drm/amd/display/dc/dcn30/dcn30_optc.h        | 3 ---
>  drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c        | 1 -
>  drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h | 2 --
>  4 files changed, 14 deletions(-)

Thanks, that fixes the build issue for me.

Tested-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>

cheers



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