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authorAntonino A. Daplas <adaplas@gmail.com>2007-05-08 00:38:23 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:15:28 -0700
commitb9b2696de920e7366e2ce0cdc3b3b7fc11e44e99 (patch)
tree2d1c3b7365350b332e7bb9b39acf98851bf14596 /drivers/video/nvidia
parent0404384982b2f71eb00573c8f9da514106aca08c (diff)
downloadop-kernel-dev-b9b2696de920e7366e2ce0cdc3b3b7fc11e44e99.zip
op-kernel-dev-b9b2696de920e7366e2ce0cdc3b3b7fc11e44e99.tar.gz
nvidiafb: ensure that CRTC registers are accessible
- Ensure that CRTC registers are accessible by unlocking them on set_par(), otherwise i2c reading will fail. - The function nvidia_vga_protect(), does not protect the VGA registers, but turns off the screen. Rename it to nvidia_screen_off(). 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>
Diffstat (limited to 'drivers/video/nvidia')
-rw-r--r--drivers/video/nvidia/nvidia.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index b97ec69..c6afafc 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -200,7 +200,7 @@ static int nvidia_panel_tweak(struct nvidia_par *par,
return tweak;
}
-static void nvidia_vga_protect(struct nvidia_par *par, int on)
+static void nvidia_screen_off(struct nvidia_par *par, int on)
{
unsigned char tmp;
@@ -649,7 +649,7 @@ static int nvidiafb_set_par(struct fb_info *info)
NVLockUnlock(par, 0);
}
- nvidia_vga_protect(par, 1);
+ nvidia_screen_off(par, 1);
nvidia_write_regs(par, &par->ModeReg);
NVSetStartAddress(par, 0);
@@ -687,7 +687,7 @@ static int nvidiafb_set_par(struct fb_info *info)
par->cursor_reset = 1;
- nvidia_vga_protect(par, 0);
+ nvidia_screen_off(par, 0);
#ifdef CONFIG_BOOTX_TEXT
/* Update debug text engine */
@@ -696,6 +696,7 @@ static int nvidiafb_set_par(struct fb_info *info)
info->var.bits_per_pixel, info->fix.line_length);
#endif
+ NVLockUnlock(par, 0);
NVTRACE_LEAVE();
return 0;
}
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