From: "Guo, Bing" <[email protected]> Updating certain variable blanking calculations to use ceiling function.
Reviewed-by: Chris Park <[email protected]> Acked-by: Agustin Gutierrez <[email protected]> Signed-off-by: Bing Guo <[email protected]> --- .../drm/amd/display/modules/freesync/freesync.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c index b99aa232bd8b..bd1d1dc93629 100644 --- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c @@ -155,9 +155,18 @@ static unsigned int calc_v_total_from_duration( if (duration_in_us > vrr->max_duration_in_us) duration_in_us = vrr->max_duration_in_us; - v_total = div64_u64(div64_u64(((unsigned long long)( - duration_in_us) * (stream->timing.pix_clk_100hz / 10)), - stream->timing.h_total), 1000); + if (dc_is_hdmi_signal(stream->signal)) { + uint32_t h_total_up_scaled; + + h_total_up_scaled = stream->timing.h_total * 10000; + v_total = div_u64((unsigned long long)duration_in_us + * stream->timing.pix_clk_100hz + (h_total_up_scaled - 1), + h_total_up_scaled); + } else { + v_total = div64_u64(div64_u64(((unsigned long long)( + duration_in_us) * (stream->timing.pix_clk_100hz / 10)), + stream->timing.h_total), 1000); + } /* v_total cannot be less than nominal */ if (v_total < stream->timing.v_total) { -- 2.25.1
