[PATCH v2] drm/panel: simple: Tune timing for ET057090DHU

[Francesco Dolcini]

From: Oleksandr Suvorov <oleksandr.suvorov at toradex.com>

VESA Display Monitor Timing v1.13 has recommendations for the historical
VGA mode 640x480 60Hz. These parameters are compatible with EDT
ET057090DHU recommended timings.

Use VESA DMT timing parameters for EDT ET057090DHU panel.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov at toradex.com>
Cc: Oleksandr Suvorov <oleksandr.suvorov at foundries.io>
Signed-off-by: Francesco Dolcini <francesco.dolcini at toradex.com>
---
v2: removed stale vrefresh field
---
 drivers/gpu/drm/panel/panel-simple.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 0c8786ebffd1..52e936dd2d6f 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1598,12 +1598,12 @@ static const struct drm_display_mode edt_et057090dhu_mode = {
 	.clock = 25175,
 	.hdisplay = 640,
 	.hsync_start = 640 + 16,
-	.hsync_end = 640 + 16 + 30,
-	.htotal = 640 + 16 + 30 + 114,
+	.hsync_end = 640 + 16 + 48,
+	.htotal = 640 + 16 + 48 + 96,
 	.vdisplay = 480,
 	.vsync_start = 480 + 10,
-	.vsync_end = 480 + 10 + 3,
-	.vtotal = 480 + 10 + 3 + 32,
+	.vsync_end = 480 + 10 + 2,
+	.vtotal = 480 + 10 + 2 + 33,
 	.flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
 };
 
-- 
2.25.1