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drm/exynos: restored kernel_fb_list when reiniting fb_helper

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during recreating exynos_drm_fbdev as a new display device probes,
fb_helper is reinitialized but kernel fb is not changed
so kernel_fb_list should be restored after fb_helper is reinitialized.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Joonyoung Shim 2011-11-04 13:41:46 +09:00 committed by Inki Dae
parent 74ccc539bc
commit 84b46990cb
1 changed files with 15 additions and 0 deletions
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15
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
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@ -405,6 +405,18 @@ int exynos_drm_fbdev_reinit(struct drm_device *dev)
fb_helper = private->fb_helper;
if (fb_helper) {
struct list_head temp_list;
INIT_LIST_HEAD(&temp_list);
/*
* fb_helper is reintialized but kernel fb is reused
* so kernel_fb_list need to be backuped and restored
*/
if (!list_empty(&fb_helper->kernel_fb_list))
list_replace_init(&fb_helper->kernel_fb_list,
&temp_list);
drm_fb_helper_fini(fb_helper);
ret = drm_fb_helper_init(dev, fb_helper,
@ -414,6 +426,9 @@ int exynos_drm_fbdev_reinit(struct drm_device *dev)
return ret;
}
if (!list_empty(&temp_list))
list_replace(&temp_list, &fb_helper->kernel_fb_list);
ret = drm_fb_helper_single_add_all_connectors(fb_helper);
if (ret < 0) {
DRM_ERROR("failed to add fb helper to connectors\n");