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authorJesse Barnes <jbarnes@virtuousgeek.org>2013-02-04 13:37:21 +0000
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-02-20 01:33:41 +0100
commit3cf2667b9f8b2c2fe298a427deb399e52321da6b (patch)
treeb3cd41100e401550711daf7f852c7f7f618c0b6d
parentf43f627d2f17e95c78647eeddf968d12f5c286b1 (diff)
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>
-rw-r--r--drivers/video/fbmem.c7
-rw-r--r--include/linux/fb.h2
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index dc61c12ecf8..2af7153da2e 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -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))
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 58b98606ac2..d49c60f5aa4 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -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) {