Thomas Zimmermann a3e507763d drm/ast: Remove existing framebuffers before loading driver ... commit 5478ad10e7 upstream. If vesafb attaches to the AST device, it configures the framebuffer memory for uncached access by default. When ast.ko later tries to attach itself to the device, it wants to use write-combining on the framebuffer memory, but vesefb's existing configuration for uncached access takes precedence. This results in reduced performance. Removing the framebuffer's configuration before loding the AST driver fixes the problem. Other DRM drivers already contain equivalent code. Link: https://bugzilla.opensuse.org/show_bug.cgi?id=1112963 Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: <stable@vger.kernel.org> Tested-by: Y.C. Chen <yc_chen@aspeedtech.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Tested-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-12-01 09:46:41 +01:00
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drm	drm/ast: Remove existing framebuffers before loading driver	2018-12-01 09:46:41 +01:00
host1x	gpu: host1x: fix error return code in host1x_probe()	2018-11-10 07:41:39 -08:00
ipu-v3	drm/imx: Match imx-ipuv3-crtc components using device node in platform data	2016-06-07 18:14:37 -07:00
vga	vgaarb: fix signal handling in vga_get()	2015-12-11 14:04:44 +10:00
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