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drm.7971
0140-drm-rcar-du-Fix-display-timing-controller-...
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File 0140-drm-rcar-du-Fix-display-timing-controller-parameter.patch of Package drm.7971
From 1fb8ff8b92bd1335e036e3187797136348fe0029 Mon Sep 17 00:00:00 2001 From: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Date: Mon, 18 Apr 2016 16:31:30 +0900 Subject: [PATCH] drm: rcar-du: Fix display timing controller parameter Git-commit: 9cdced8a39c04cf798ddb2a27cb5952f7d39f633 Patch-mainline: 4.10-rc1 References: bsc#1041744 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. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Thong Ho <thong.ho.px@rvc.renesas.com> Signed-off-by: Nhan Nguyen <nhan.nguyen.yb@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Takashi Iwai <tiwai@suse.de> --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -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); }
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