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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Helge Deller <deller@gmx.de>
Cc: Michael Schmitz <schmitzmic@gmail.com>,
	linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-m68k@vger.kernel.org,
	Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH 1/3] video: fbdev: atari: Fix TT High video mode
Date: Tue, 15 Feb 2022 12:21:24 +0100	[thread overview]
Message-ID: <20220215112126.2633383-2-geert@linux-m68k.org> (raw)
In-Reply-To: <20220215112126.2633383-1-geert@linux-m68k.org>

The horizontal resolution (640) for the TT High video mode (1280x960) is
definitely bogus.  While fixing that, correct the timings to match the
TTM195 service manual.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
Untested on actual hardware.

v3:
  - Adjust pixclock from 7761 to 7760 to match 4 * 32.215905 MHz
    crystal oscillator frequency,
  - Make it part of a series.

v2[1]:
  - Use correct base.

[1] https://lore.kernel.org/r/20201101102759.2890612-1-geert@linux-m68k.org/
---
 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 e3812a8ff55a4fb8..a9f25cab4a1e6737 100644
--- a/drivers/video/fbdev/atafb.c
+++ b/drivers/video/fbdev/atafb.c
@@ -487,8 +487,8 @@ static struct fb_videomode atafb_modedb[] __initdata = {
 		"tt-mid", 60, 640, 480, 31041, 120, 100, 8, 16, 140, 30,
 		0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
 	}, {
-		/* 1280x960, 29 kHz, 60 Hz (TT high) */
-		"tt-high", 57, 640, 960, 31041, 120, 100, 8, 16, 140, 30,
+		/* 1280x960, 72 kHz, 72 Hz (TT high) */
+		"tt-high", 57, 1280, 960, 7760, 260, 60, 36, 4, 192, 4,
 		0, FB_VMODE_NONINTERLACED | FB_VMODE_YWRAP
 	},
 
-- 
2.25.1


  reply	other threads:[~2022-02-15 11:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-15 11:21 [PATCH 0/3] video: fbdev: atari: Miscellaneous fixes Geert Uytterhoeven
2022-02-15 11:21 ` Geert Uytterhoeven [this message]
2022-02-15 11:21 ` [PATCH 2/3] video: fbdev: atari: Convert to standard round_up() helper Geert Uytterhoeven
2022-02-15 11:21 ` [PATCH 3/3] video: fbdev: atari: Remove unused atafb_setcolreg() Geert Uytterhoeven
2022-02-15 20:36 ` [PATCH 0/3] video: fbdev: atari: Miscellaneous fixes Helge Deller

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