[PATCH] fbdev: Fix greater than 1 bit monochrome color handling

Currently, fbcon assumes that the visual FB_VISUAL_MONO* is always 1 bit.
According to Geert, there are old hardware where it's possible to have
monochrome at 8-bit, but has only 2 colors, black - 0x00 and white - 0xff.
Fix color handlers (fb_get_color_depth, and get_color) for this special case.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index af99ea96012e..32952204ce33 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -658,7 +658,7 @@ static int nvidia_calc_regs(struct fb_info *info)
 {
         struct nvidia_par *par = info->par;
         struct _riva_hw_state *state = &par->ModeReg;
-        int i, depth = fb_get_color_depth(&info->var);
+        int i, depth = fb_get_color_depth(&info->var, &info->fix);
         int h_display = info->var.xres / 8 - 1;
         int h_start = (info->var.xres + info->var.right_margin) / 8 - 1;
         int h_end = (info->var.xres + info->var.right_margin +
@@ -978,6 +978,9 @@ static int nvidiafb_set_par(struct fb_info *info)
             !par->twoHeads)
                 par->FPDither = 0;
 
+        info->fix.visual = (info->var.bits_per_pixel == 8) ?
+            FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
+
         nvidia_init_vga(info);
         nvidia_calc_regs(info);
         nvidia_write_regs(par);
@@ -992,9 +995,6 @@ static int nvidiafb_set_par(struct fb_info *info)
         NVWriteCrtc(par, 0x11, 0x00);
         info->fix.line_length = (info->var.xres_virtual *
                                  info->var.bits_per_pixel) >> 3;
-        info->fix.visual = (info->var.bits_per_pixel == 8) ?
-            FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
-
         if (info->var.accel_flags) {
                 info->fbops->fb_imageblit = nvidiafb_imageblit;
                 info->fbops->fb_fillrect = nvidiafb_fillrect;