drm/vmwgfx: allow a kconfig option to choose if fbcon is enabled

This makes things easier for distros where we'd like to have fbcon
enabled all the time.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/vmwgfx/Kconfig b/drivers/gpu/drm/vmwgfx/Kconfig
index 794ff67..b71bcd0 100644
--- a/drivers/gpu/drm/vmwgfx/Kconfig
+++ b/drivers/gpu/drm/vmwgfx/Kconfig
@@ -12,3 +12,11 @@
 	  This is a KMS enabled DRM driver for the VMware SVGA2
 	  virtual hardware.
 	  The compiled module will be called "vmwgfx.ko".
+
+config DRM_VMWGFX_FBCON
+	depends on DRM_VMWGFX
+	bool "Enable framebuffer console under vmwgfx by default"
+	help
+	   Choose this option if you are shipping a new vmwgfx
+	   userspace driver that supports using the kernel driver.
+
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 4d9edea..7f4f4ee 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -183,7 +183,7 @@
 	{0, 0, 0}
 };
 
-static int enable_fbdev;
+static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON);
 
 static int vmw_probe(struct pci_dev *, const struct pci_device_id *);
 static void vmw_master_init(struct vmw_master *);