iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

media: sunxi-cir: ensure IR is handled when it is continuous

Browse Source 
commit 3f56df4c8ffeb120ed41906d3aae71799b7e726a upstream.

If a user holds a button down on a remote, then no ir idle interrupt will
be generated until the user releases the button, depending on how quickly
the remote repeats. No IR is processed until that point, which means that
holding down a button may not do anything.

This also resolves an issue on a Cubieboard 1 where the IR receiver is
picking up ambient infrared as IR and spews out endless
"rc rc0: IR event FIFO is full!" messages unless you choose to live in
the dark.

Cc: stable@vger.kernel.org
Tested-by: Hans Verkuil <hverkuil@xs4all.nl>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sean Young 2020-11-09 23:16:52 +01:00 committed by Greg Kroah-Hartman
parent 124dc7d4f4
commit 0bfbb8393e
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/rc/sunxi-cir.c
View File

@ -137,6 +137,8 @@ static irqreturn_t sunxi_ir_irq(int irqno, void *dev_id)
} else if (status & REG_RXSTA_RPE) {
ir_raw_event_set_idle(ir->rc, true);
ir_raw_event_handle(ir->rc);
} else {
ir_raw_event_handle(ir->rc);
}
spin_unlock(&ir->ir_lock);