[PATCH] drm/gma500: Increase max resolution for mode setting

[Patrik Jakobsson]

Hi stable maintainers, I found a bug report that is fixed by this patch
Upstream commit id: cbbd379aa43890f36da934f5af619d2fb8ec3d87
I've checked it against 3.9 and 3.8 but can probably be applied to older
kernels if needed. Bugzilla entry is added below.

Thanks
Patrik Jakobsson

Commit message:

By having a higher max resolution we can now set up a virtual
framebuffer that spans several monitors. 4096 should be ok since we're
gen 3 or higher and should be enough for most dual head setups.

Bugzilla: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-modesetting/+bug/1169147
Cc: kernel-team at lists.ubuntu.com
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson at gmail.com>
---
 drivers/gpu/drm/gma500/framebuffer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 31ac392..1534e22 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -772,8 +772,8 @@ void psb_modeset_init(struct drm_device *dev)
 	for (i = 0; i < dev_priv->num_pipe; i++)
 		psb_intel_crtc_init(dev, i, mode_dev);
 
-	dev->mode_config.max_width = 2048;
-	dev->mode_config.max_height = 2048;
+	dev->mode_config.max_width = 4096;
+	dev->mode_config.max_height = 4096;
 
 	psb_setup_outputs(dev);
 
-- 
1.8.1.2