1 files changed, 46 insertions, 1 deletions

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 30f2b59c47bf..2f1c56e5a7a2 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -14,13 +14,13 @@
 #include <linux/console.h>
 #include <linux/export.h>
 #include <linux/fb.h>
-#include <linux/fbcon.h>
 #include <linux/lcd.h>
 #include <linux/leds.h>
 
 #include <video/nomodeset.h>
 
 #include "fb_internal.h"
+#include "fbcon.h"
 
     /*
      *  Frame buffer device initialization and setup routines
@@ -346,6 +346,19 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
 }
 EXPORT_SYMBOL(fb_set_var);
 
+int fb_set_var_from_user(struct fb_info *info, struct fb_var_screeninfo *var)
+{
+	int ret = fbcon_modechange_possible(info, var);
+
+	if (!ret)
+		ret = fb_set_var(info, var);
+	if (!ret)
+		fbcon_update_vcs(info, var->activate & FB_ACTIVATE_ALL);
+
+	return ret;
+}
+EXPORT_SYMBOL(fb_set_var_from_user);
+
 static void fb_lcd_notify_blank(struct fb_info *info)
 {
 	int power;
@@ -409,6 +422,16 @@ err:
 }
 EXPORT_SYMBOL(fb_blank);
 
+int fb_blank_from_user(struct fb_info *info, int blank)
+{
+	int ret = fb_blank(info, blank);
+
+	/* might again call into fb_blank */
+	fbcon_fb_blanked(info, blank);
+
+	return ret;
+}
+
 static int fb_check_foreignness(struct fb_info *fi)
 {
 	const bool foreign_endian = fi->flags & FBINFO_FOREIGN_ENDIAN;
@@ -661,6 +684,16 @@ void fb_set_suspend(struct fb_info *info, int state)
 }
 EXPORT_SYMBOL(fb_set_suspend);
 
+/**
+ * fb_switch_outputs - framebuffer got the outputs from vga-switcheroo
+ * @info: framebuffer
+ */
+void fb_switch_outputs(struct fb_info *info)
+{
+	fbcon_remap_all(info);
+}
+EXPORT_SYMBOL(fb_switch_outputs);
+
 static int __init fbmem_init(void)
 {
 	int ret;
@@ -734,6 +767,18 @@ int fb_new_modelist(struct fb_info *info)
 	if (list_empty(&info->modelist))
 		return 1;
 
+	/*
+	 * The new modelist may not contain the current mode (info->var), and
+	 * fbcon_new_modelist() below only re-points consoles mapped to this
+	 * framebuffer. Add the current mode here so info->var keeps a match
+	 * even when fbcon is unbound.
+	 */
+	if (!fb_match_mode(&info->var, &info->modelist)) {
+		fb_var_to_videomode(&mode, &info->var);
+		if (fb_add_videomode(&mode, &info->modelist))
+			return 1;
+	}
+
 	fbcon_new_modelist(info);
 
 	return 0;