[Intel-gfx] [PATCH] Correct drm display mode table about 1856x1392 @75Hz mode

[liu,lei]

From: "liu,lei" <lei.a.liu at intel.com>

According DMT spec, vss of this mode should be 1393, vse should
be 1396.

VESA MONITOR TIMING STANDARD:

Timing Name = 1856 x 1392 @ 75Hz
Hor Total Time = 8.889;  (usec) = 320 chars = 2560 Pixels
Hor Sync Start = 6.889;  (usec) = 248 chars = 1984 Pixels
H Back Porch = 1.222;  (usec) = 44 chars = 352 Pixels

Ver Total Time = 13.333;  (msec) = 1500 lines HT – (1.06xHA)
Ver Sync Start = 12.382;  (msec) = 1393 lines
V Back Porch = 0.924;  (msec) = 104 lines
---
 drivers/gpu/drm/drm_edid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 53bc7a6..16991ea 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -409,7 +409,7 @@ static const struct drm_display_mode drm_dmt_modes[] = {
 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
 	/* 1856x1392 at 75Hz */
 	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 288000, 1856, 1984,
-		   2208, 2560, 0, 1392, 1395, 1399, 1500, 0,
+		   2208, 2560, 0, 1392, 1393, 1396, 1500, 0,
 		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
 	/* 1856x1392 at 120Hz RB */
 	{ DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 356500, 1856, 1904,
-- 
1.8.3.1