[PATCH] drm/amdgpu/display: fix 64 bit divide

[Harry Wentland]

On 2019-09-20 4:18 p.m., Alex Deucher wrote:
> Use proper helper for 32 bit.
> 
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

> ---
>  .../gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c    | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c
> index 36277bca0326..b1e657e137a9 100644
> --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c
> +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c
> @@ -197,7 +197,9 @@ void dce11_pplib_apply_display_requirements(
>  	 */
>  	if (ASICREV_IS_VEGA20_P(dc->ctx->asic_id.hw_internal_rev) && (context->stream_count >= 2)) {
>  		pp_display_cfg->min_memory_clock_khz = max(pp_display_cfg->min_memory_clock_khz,
> -			(uint32_t) (dc->bw_vbios->high_yclk.value / memory_type_multiplier / 10000));
> +							   (uint32_t) div64_s64(
> +								   div64_s64(dc->bw_vbios->high_yclk.value,
> +									     memory_type_multiplier), 10000));
>  	} else {
>  		pp_display_cfg->min_memory_clock_khz = context->bw_ctx.bw.dce.yclk_khz
>  			/ memory_type_multiplier;
>