diff options
| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2021-10-19 16:45:09 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-26 11:36:15 +0100 |
| commit | b7ca0f280dadbe551b43471b165bfd750a2929ad (patch) | |
| tree | ec554ab796b61767384a78eeaa8444d891ac254a /net | |
| parent | 84ed9845017877a0c7d0e271c2164a7b7c35daea (diff) | |
auxdisplay: ht16k33: Fix frame buffer device blanking
[ Upstream commit 840fe258332544aa7321921e1723d37b772af7a9 ]
As the ht16k33 frame buffer sub-driver does not register an
fb_ops.fb_blank() handler, blanking does not work:
$ echo 1 > /sys/class/graphics/fb0/blank
sh: write error: Invalid argument
Fix this by providing a handler that always returns zero, to make sure
blank events will be sent to the actual device handling the backlight.
Reported-by: Robin van der Gracht <robin@protonic.nl>
Suggested-by: Robin van der Gracht <robin@protonic.nl>
Fixes: 8992da44c6805d53 ("auxdisplay: ht16k33: Driver for LED controller")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions