"panel-simple.c" customization errors

[nataut]

This post is connected to my previous one "Display customization". I created this new post because I can't insert replies in the previous one "Display customization"

I created the following patch to modify the panel-simple.c file 

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 654fea2..8e4234f 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -1439,6 +1439,31 @@ static const struct panel_desc innolux_zj070na_01p = {
 	},
 };
 
+static const struct drm_display_mode jenson_1024x600jt60396_01_mode = {
+	.clock = 51200,
+	.hdisplay = 1024,
+	.hsync_start = 1024 + 0,
+	.hsync_end = 1024 + 0 + 320,
+	.htotal = 1024 + 0 + 320 + 0,
+	.vdisplay = 600,
+	.vsync_start = 600 + 0,
+	.vsync_end = 600 + 0 + 35,
+	.vtotal = 600 + 0 + 35 + 0,
+	.vrefresh = 60,
+	.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+};
+
+static const struct panel_desc jenson_1024x600jt60396_01 = {
+	.modes = &jenson_1024x600jt60396_01_mode,
+	.num_modes = 1,
+	.bpc = 8,
+	.size = {
+		.width = 154,
+		.height = 85,
+	},
+	.bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+};
+
 static const struct display_timing koe_tx31d200vm0baa_timing = {
 	.pixelclock = { 39600000, 43200000, 48000000 },
 	.hactive = { 1280, 1280, 1280 },
@@ -2480,6 +2505,9 @@ static const struct of_device_id platform_of_match[] = {
 		.compatible = "innolux,zj070na-01p",
 		.data = &innolux_zj070na_01p,
 	}, {
+		.compatible = "jenson,jt60396-01",
+		.data = &jenson_1024x600jt60396_01,
+	}, {
 		.compatible = "koe,tx31d200vm0baa",
 		.data = &koe_tx31d200vm0baa,
 	}, {

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The build process ends correctly but the boot log shows the following errors

[11066.089809] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CRTC:32:crtc-0] flip_done timed out
[11076.329852] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [CONNECTOR:29:DPI-1] flip_done timed out
[11086.569810] [drm:drm_atomic_helper_wait_for_dependencies] *ERROR* [PLANE:30:plane-0] flip_done timed out

 and the display screen doesn't show anything

Any suggestion?

Thanks