From: Alan Cox <alan@linux.intel.com>
Date: Thu, 3 May 2012 14:05:53 +0000 (+0100)
Subject: gma500: wide framebuffer memory
X-Git-Tag: v3.5-rc1~83^2~54
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bb84977941ad85a5c0b9ff4fd5331913e31107c4;p=profile%2Fivi%2Fkernel-x86-ivi.git

gma500: wide framebuffer memory

If we set a small text framebuffer and have a bigger scanout then we want
to send black not random bits for the overscan.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index c9fe4bd..4fc0d08 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -408,6 +408,8 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 			return -ENOMEM;
 	}
 
+	memset(dev_priv->vram_addr + backing->offset, 0, size);
+
 	mutex_lock(&dev->struct_mutex);
 
 	info = framebuffer_alloc(0, device);