[PATCH] nvidia fbdev: fix powerpc xmon scribbles

xmon writes garbage on the screen because the nvidia console driver has
changed the line pitch from what the firmware set it to.  Fix it by making
the nvidia driver inform the btext engine (which xmon uses if the screen is
its output device) about changes to display resolution.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index 731edf7cb0a07036e79d64146f656e0105212ba2..eb24107bcc81f539a4a7e92b87fb5efb0523f9d1 100644 (file)
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -28,6 +28,9 @@
 #include <asm/prom.h>
 #include <asm/pci-bridge.h>
 #endif
+#ifdef CONFIG_BOOTX_TEXT
+#include <asm/btext.h>
+#endif
 
 #include "nv_local.h"
 #include "nv_type.h"
@@ -681,6 +684,13 @@ static int nvidiafb_set_par(struct fb_info *info)
 
        nvidia_vga_protect(par, 0);
 
+#ifdef CONFIG_BOOTX_TEXT
+       /* Update debug text engine */
+       btext_update_display(info->fix.smem_start,
+                            info->var.xres, info->var.yres,
+                            info->var.bits_per_pixel, info->fix.line_length);
+#endif
+
        NVTRACE_LEAVE();
        return 0;
 }