From: Ahmed Muhammad <Ahmed.Ahmed@xxxxxxx> [why] post_divider_value should not be 0 Reviewed-by: Charlene Liu <charlene.liu@xxxxxxx> Signed-off-by: Ahmed Muhammad <Ahmed.Ahmed@xxxxxxx> Signed-off-by: Zaeem Mohamed <zaeem.mohamed@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c b/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c index 7f91e48902e2..60a84de4c5d1 100644 --- a/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c +++ b/drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c @@ -1082,7 +1082,8 @@ static void dccg35_trigger_dio_fifo_resync(struct dccg *dccg) uint32_t dispclk_rdivider_value = 0; REG_GET(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_RDIVIDER, &dispclk_rdivider_value); - REG_UPDATE(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, dispclk_rdivider_value); + if (dispclk_rdivider_value != 0) + REG_UPDATE(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, dispclk_rdivider_value); } static void dcn35_set_dppclk_enable(struct dccg *dccg, -- 2.34.1
