linux-stable/drivers/video
Helge Deller d0d6186eae fbcon: Fix accelerated fbdev scrolling while logo is still shown
commit 3866cba87d upstream.

There is no need to directly skip over to the SCROLL_REDRAW case while
the logo is still shown.

When using DRM, this change has no effect because the code will reach
the SCROLL_REDRAW case immediately anyway.

But if you run an accelerated fbdev driver and have
FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION enabled, console scrolling is
slowed down by factors so that it feels as if you use a 9600 baud
terminal.

So, drop those unnecessary checks and speed up fbdev console
acceleration during bootup.

Cc: stable@vger.kernel.org # v5.10+
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YpkYxk7wsBPx3po+@p100
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-17 14:22:51 +02:00
..
backlight backlight: qcom-wled: Respect enabled-strings in set_brightness 2022-01-27 11:03:46 +01:00
console parisc/stifb: Fix fb_is_primary_device() only available with CONFIG_FB_STI 2022-06-29 09:03:29 +02:00
fbdev fbcon: Fix accelerated fbdev scrolling while logo is still shown 2022-08-17 14:22:51 +02:00
logo
display_timing.c
hdmi.c
Kconfig
Makefile
of_display_timing.c
of_videomode.c
vgastate.c
videomode.c