fbcon: Revise primary device selection
Use set_con2fb_map() to select the primary display driver instead of using
unbind_con_driver() and bind_con_driver(). Using the former is much simpler
and safer than the current one.
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 13b67ee..9b663310 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -3041,52 +3041,32 @@
}
#ifdef CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
-static int fbcon_select_primary(struct fb_info *info)
+static void fbcon_select_primary(struct fb_info *info)
{
- int ret = 0;
-
if (!map_override && primary_device == -1 &&
fb_is_primary_device(info)) {
- int i, err;
+ int i;
- printk(KERN_INFO "fbcon: %s is primary device\n",
- info->fix.id);
+ printk(KERN_INFO "fbcon: %s (fb%i) is primary device\n",
+ info->fix.id, info->node);
primary_device = info->node;
- if (!con_is_bound(&fb_con))
- goto done;
-
- printk(KERN_INFO "fbcon: Unbinding old driver\n");
- unbind_con_driver(&fb_con, first_fb_vc, last_fb_vc,
- fbcon_is_default);
- info_idx = primary_device;
-
- for (i = first_fb_vc; i <= last_fb_vc; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++)
con2fb_map_boot[i] = primary_device;
- con2fb_map[i] = primary_device;
+
+ if (con_is_bound(&fb_con)) {
+ printk(KERN_INFO "fbcon: Remapping primary device, "
+ "fb%i, to tty %i-%i\n", info->node,
+ first_fb_vc + 1, last_fb_vc + 1);
+ info_idx = primary_device;
}
-
- printk(KERN_INFO "fbcon: Selecting new driver\n");
- err = bind_con_driver(&fb_con, first_fb_vc, last_fb_vc,
- fbcon_is_default);
-
- if (err) {
- for (i = first_fb_vc; i <= last_fb_vc; i++)
- con2fb_map[i] = -1;
-
- info_idx = -1;
- }
-
- ret = 1;
}
-done:
- return ret;
}
#else
-static inline int fbcon_select_primary(struct fb_info *info)
+static inline void fbcon_select_primary(struct fb_info *info)
{
- return 0;
+ return;
}
#endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */
@@ -3094,9 +3074,7 @@
{
int ret = 0, i, idx = info->node;
- if (fbcon_select_primary(info))
- goto done;
-
+ fbcon_select_primary(info);
if (info_idx == -1) {
for (i = first_fb_vc; i <= last_fb_vc; i++) {
@@ -3115,7 +3093,6 @@
}
}
-done:
return ret;
}
