[Intel-gfx] [PATCH] drm/i915/mtl: update DP 2.0 vswing table for C20 phy

[Lee Shawn C]

Update preset 15 setting to align the latest bspec value.

Bspec: 74104
Signed-off-by: Lee Shawn C <shawn.c.lee at intel.com>
Cc: Mika Kahola <mika.kahola at intel.com>
Cc: Clint Taylor <Clinton.A.Taylor at intel.com>
Cc: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
Cc: Uma Shankar <uma.shankar at intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
index 6a1507515119..2af91a06f5fe 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi_buf_trans.c
@@ -1086,7 +1086,7 @@ static const union intel_ddi_buf_trans_entry _mtl_c20_trans_uhbr[] = {
 	{ .snps = { 37, 4, 7 } },       /* preset 12 */
 	{ .snps = { 33, 4, 11 } },      /* preset 13 */
 	{ .snps = { 40, 8, 0 } },	/* preset 14 */
-	{ .snps = { 28, 2, 2 } },	/* preset 15 */
+	{ .snps = { 30, 2, 2 } },	/* preset 15 */
 };
 
 /* HDMI2.0 */
-- 
2.31.1