From 86e03595eea05551ad297b7ed0a92427bc95a6d1 Mon Sep 17 00:00:00 2001 From: Hugo Hu Date: Mon, 18 Jun 2018 15:27:58 -0400 Subject: [PATCH 4903/5725] drm/amd/display: Correct calculation of duration time. Signed-off-by: Hugo Hu Reviewed-by: Charlene Liu Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index 4059a4c..1634e9d 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -864,10 +864,10 @@ void hwss_edp_power_control( if (power_up) { unsigned long long current_ts = dm_get_timestamp(ctx); unsigned long long duration_in_ms = - dm_get_elapse_time_in_ns( + div64_u64(dm_get_elapse_time_in_ns( ctx, current_ts, - div64_u64(link->link_trace.time_stamp.edp_poweroff, 1000000)); + link->link_trace.time_stamp.edp_poweroff), 1000000); unsigned long long wait_time_ms = 0; /* max 500ms from LCDVDD off to on */ -- 2.7.4