[PATCH 5.3 340/344] drm/amdgpu/display: fix 64 bit divide

From: Greg Kroah-Hartman
Date: Thu Oct 03 2019 - 12:54:13 EST


From: Alex Deucher <alexander.deucher@xxxxxxx>

commit dd9212a885ca4a95443905c7c3781122a4d664e8 upstream.

Use proper helper for 32 bit.

Reviewed-by: Harry Wentland <harry.wentland@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/amd/display/dc/clk_mgr/dce110/dce110_clk_mgr.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- 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_requireme
*/
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;