This is a note to let you know that I've just added the patch titled drm: rcar-du: Fix H/V sync signal polarity configuration 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-h-v-sync-signal-polarity-configuration.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 <stable@xxxxxxxxxxxxxxx> know about it. >From fd1adef3bff0663c5ac31b45bc4a05fafd43d19b Mon Sep 17 00:00:00 2001 From: Koji Matsuoka <koji.matsuoka.xm@xxxxxxxxxxx> Date: Mon, 16 May 2016 11:28:15 +0900 Subject: drm: rcar-du: Fix H/V sync signal polarity configuration From: Koji Matsuoka <koji.matsuoka.xm@xxxxxxxxxxx> commit fd1adef3bff0663c5ac31b45bc4a05fafd43d19b upstream. The VSL and HSL bits in the DSMR register set the corresponding horizontal and vertical sync signal polarity to active high. The code got it the wrong way around, fix it. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@xxxxxxxxxxx> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@xxxxxxxxxxxxxxxx> Signed-off-by: Thong Ho <thong.ho.px@xxxxxxxxxxxxxxx> Signed-off-by: Nhan Nguyen <nhan.nguyen.yb@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -149,8 +149,8 @@ static void rcar_du_crtc_set_display_tim rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? OTAR2 : OTAR, 0); /* Signal polarities */ - value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : DSMR_VSL) - | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : DSMR_HSL) + value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? DSMR_VSL : 0) + | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? DSMR_HSL : 0) | DSMR_DIPM_DISP | DSMR_CSPM; rcar_du_crtc_write(rcrtc, DSMR, value); Patches currently in stable-queue which might be from koji.matsuoka.xm@xxxxxxxxxxx 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