FAILED: patch "[PATCH] drm/panel-simple: Fix inverted V/H SYNC for Frida" failed to apply to 5.7-stable tree

The patch below does not apply to the 5.7-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From bad20a2dbfdfaf01560026909506b6ed69d65ba2 Mon Sep 17 00:00:00 2001
From: Paul Cercueil <[email protected]>
Date: Thu, 16 Jul 2020 14:56:46 +0200
Subject: [PATCH] drm/panel-simple: Fix inverted V/H SYNC for Frida
FRD350H54004 panel

The FRD350H54004 panel was marked as having active-high VSYNC and HSYNC signals, which sorts-of worked, but resulted in the picture fading out under certain circumstances.

Fix this issue by marking VSYNC and HSYNC signals active-low.

v2: Rebase on drm-misc-next

index f42249b72548..8b0bab9dd075 100644
@@ -1763,7 +1763,7 @@ static const struct drm_display_mode frida_frd350h54004_mode = {
 	.vsync_start = 240 + 2,
 	.vsync_end = 240 + 2 + 6,
 	.vtotal = 240 + 2 + 6 + 2,
-	.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
+	.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
 };
 
 static const struct panel_desc frida_frd350h54004 = {