From 657d0ff37aaeebc026e4178f1c98511d88a93e2d Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 11 Jul 2022 17:50:32 +0200
Subject: video: fbdev: atari: Fix VGA modes
Git-commit: 39101f1314ba38fca8b2ab8ed42622529d18342e
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
The pixclock values in the vga and vga70 modes are wrong, as they should
use the 25.175 MHz clock instead of the 32 MHz clock.
Swap the left and right margins to match f25.{right,left} (struct
pixel_clock declares them in a different order), and update the hsync
lengths to match what the driver programs by default.
Correct the (wrong) floating-point vrefresh value for the vga mode.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/video/fbdev/atafb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c
index 528478f6f308..46a00e0ad5e7 100644
--- a/drivers/video/fbdev/atafb.c
+++ b/drivers/video/fbdev/atafb.c
@@ -494,11 +494,11 @@ static struct fb_videomode atafb_modedb[] __initdata = {
{
/* 640x480, 31 kHz, 60 Hz (VGA) */
- "vga", 63.5, 640, 480, 32000, 18, 42, 31, 11, 96, 3,
+ "vga", 60, 640, 480, 39721, 42, 18, 31, 11, 100, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 640x400, 31 kHz, 70 Hz (VGA) */
- "vga70", 70, 640, 400, 32000, 18, 42, 31, 11, 96, 3,
+ "vga70", 70, 640, 400, 39721, 42, 18, 31, 11, 100, 3,
FB_SYNC_VERT_HIGH_ACT | FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED
},
--
2.38.1