From 35fa155e836833fdd5744c5237aca7e2c2c31e03 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 11 Jul 2022 17:50:28 +0200 Subject: [PATCH] video: fbdev: atari: Fix ext_setcolreg() The red, green, and blue color values are 16-bit, while the external graphics hardware registers are 8-bit. Add the missing conversion from 16-bit to 8-bit. Signed-off-by: Geert Uytterhoeven Tested-by: Michael Schmitz Signed-off-by: Helge Deller --- drivers/video/fbdev/atafb.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c index 39c3b860..a36cd8f 100644 --- a/drivers/video/fbdev/atafb.c +++ b/drivers/video/fbdev/atafb.c @@ -2206,6 +2206,10 @@ static int ext_setcolreg(unsigned int regno, unsigned int red, if (regno > 255) return 1; + red >>= 8; + green >>= 8; + blue >>= 8; + switch (external_card_type) { case IS_VGA: OUTB(0x3c8, regno); -- 2.7.4