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fbdev: stifb: Fall back to cfb_fillrect() on 32-bit HCRX cards

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[ Upstream commit 776d875fd4cbb3884860ea7f63c3958f02b0c80e ]

When the text console is scrolling text upwards it calls the fillrect()
function to empty the new line. The current implementation doesn't seem
to work correctly on HCRX cards in 32-bit mode and leave garbage in that
line instead. Fix it by falling back to standard cfb_fillrect() in that
case.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Helge Deller 2022-10-14 20:01:17 +02:00 committed by Greg Kroah-Hartman
parent 154934c74f
commit 2f07635876
1 changed files with 2 additions and 1 deletions
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3
drivers/video/fbdev/stifb.c
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@ -1055,7 +1055,8 @@ stifb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
{
struct stifb_info *fb = container_of(info, struct stifb_info, info);
if (rect->rop != ROP_COPY)
if (rect->rop != ROP_COPY ||
(fb->id == S9000_ID_HCRX && fb->info.var.bits_per_pixel == 32))
return cfb_fillrect(info, rect);
SETUP_HW(fb);