Patch "drm: rcar-du: Fix display timing controller parameter" has been added to the 4.9-stable tree
Subsystems (4)
This is a note to let you know that I've just added the patch titled
drm: rcar-du: Fix display timing controller parameter
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-rcar-du-fix-display-timing-controller-parameter.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
9cdced8a39c04cf798ddb2a27cb5952f7d39f633Mon Sep 17 00:00:00 2001
From: Koji Matsuoka <[email protected]>
Date: Mon, 18 Apr 2016 16:31:30 +0900
Subject: drm: rcar-du: Fix display timing controller parameter
From: Koji Matsuoka <[email protected]>
commit 9cdced8a39c04cf798ddb2a27cb5952f7d39f633 upstream.
There is a bug in the setting of the DES (Display Enable Signal) register. This current setting occurs 1 dot left shift. The DES register should be set minus one value about the specifying value with H/W specification. This patch corrects it.
--- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/gpu/drm/rcar-du/rcar_du_crtc.c +1 -1
@@ -172,7 +172,7 @@ static void rcar_du_crtc_set_display_tim mode->crtc_vsync_start - 1);rcar_du_crtc_write (rcrtc,VCR , mode->crtc_vtotal -1 ); -rcar_du_crtc_write (rcrtc,DESR , mode->htotal - mode->hsync_start); +rcar_du_crtc_write (rcrtc,DESR , mode->htotal - mode->hsync_start -1 );rcar_du_crtc_write (rcrtc,DEWR , mode->hdisplay); }
Patches currently in stable-queue which might be from [email protected] are
queue-4.9/drm-rcar-du-fix-h-v-sync-signal-polarity-configuration.patch queue-4.9/drm-rcar-du-fix-display-timing-controller-parameter.patch