Messages in this thread Patch in this message |  | | From | Geert Uytterhoeven <> | Subject | [PATCH 04/10] video: fbdev: atari: Fix ext_setcolreg() | Date | Mon, 11 Jul 2022 17:50:28 +0200 |
| |
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 <geert@linux-m68k.org> --- Untested due to lack of hardware. --- 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 39c3b860a797d4bc..a36cd8f1f4200dd5 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); -- 2.25.1
|  |