diff --git a/drivers/gpu/drm/mgag200/mgag200_pll.c b/drivers/gpu/drm/mgag200/mgag200_pll.c
index 52be08b744ade..87f9846b9b4ff 100644
--- a/drivers/gpu/drm/mgag200/mgag200_pll.c
+++ b/drivers/gpu/drm/mgag200/mgag200_pll.c
@@ -268,7 +268,8 @@ static void mgag200_pixpll_update_g200se_04(struct mgag200_pll *pixpll,
 	pixpllcp = pixpllc->p - 1;
 	pixpllcs = pixpllc->s;
 
-	xpixpllcm = pixpllcm | ((pixpllcn & BIT(8)) >> 1);
+	// For G200SE A, BIT(7) should be set unconditionally.
+	xpixpllcm = BIT(7) | pixpllcm;
 	xpixpllcn = pixpllcn;
 	xpixpllcp = (pixpllcs << 3) | pixpllcp;