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fb: add support for drivers not needing VT switch at suspend/resume time 

Use the new PM routines to indicate whether we need to VT switch at suspend
and resume time.  When a new driver is bound, set its flag accordingly,
and when unbound, remove it from the PM's console tracking list.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jesse Barnes 2013-02-04 13:37:21 +00:00 committed by Daniel Vetter
parent f43f627d2f
commit 3cf2667b9f
2 changed files with 9 additions and 0 deletions
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7
drivers/video/fbmem.c
View File

@ -1645,6 +1645,11 @@ static int do_register_framebuffer(struct fb_info *fb_info)
if (!fb_info->modelist.prev || !fb_info->modelist.next)
INIT_LIST_HEAD(&fb_info->modelist);
if (fb_info->skip_vt_switch)
pm_vt_switch_required(fb_info->dev, false);
else
pm_vt_switch_required(fb_info->dev, true);
fb_var_to_videomode(&mode, &fb_info->var);
fb_add_videomode(&mode, &fb_info->modelist);
registered_fb[i] = fb_info;
@ -1679,6 +1684,8 @@ static int do_unregister_framebuffer(struct fb_info *fb_info)
if (ret)
return -EINVAL;
pm_vt_switch_unregister(fb_info->dev);
unlink_framebuffer(fb_info);
if (fb_info->pixmap.addr &&
(fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))

2
include/linux/fb.h
View File

@ -501,6 +501,8 @@ struct fb_info {
resource_size_t size;
} ranges[0];
} *apertures;
bool skip_vt_switch; /* no VT switch on suspend/resume required */
};
static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {