Use do_div() rather than a a 64 bit divide.
Fixes: 3fe5739db48843 ("drm/amd/display: Add flip interval workaround")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Angus Wang <Angus.Wang@xxxxxxx>
Cc: Anthony Koo <Anthony.Koo@xxxxxxx>
Cc: Aric Cyr <Aric.Cyr@xxxxxxx>
---
drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
index 0130f1879116..70f06fa8cc2b 100644
--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
+++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
@@ -1230,6 +1230,7 @@ void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync,
{
struct core_freesync *core_freesync = NULL;
unsigned int cur_timestamp_in_us;
+ unsigned long long tmp;
if ((mod_freesync == NULL) || (stream == NULL) || (in_out_vrr == NULL))
return;
@@ -1239,7 +1240,9 @@ void mod_freesync_handle_v_update(struct mod_freesync *mod_freesync,
if (in_out_vrr->supported == false)
return;
- cur_timestamp_in_us = dm_get_timestamp(core_freesync->dc->ctx)/10;
+ tmp = dm_get_timestamp(core_freesync->dc->ctx);
+ do_div(tmp, 10);
+ cur_timestamp_in_us = tmp;
in_out_vrr->flip_interval.vsyncs_between_flip++;
in_out_vrr->flip_interval.v_update_timestamp_in_us = cur_timestamp_in_us;
--
2.35.1
