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media: ite-cir: IR receiver stop working after receive overflow

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On an Intel NUC6iSYK, no IR is reported after a receive overflow.

When a receiver overflow occurs, this condition is only cleared by
reading the fifo. Make sure we read anything in the fifo.

Fixes: 28c7afb07c ("media: ite-cir: check for receive overflow")
Suggested-by: Bryan Pass <bryan.pass@gmail.com>
Tested-by: Bryan Pass <bryan.pass@gmail.com>
Cc: stable@vger.kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Sean Young 2021-10-17 13:01:15 +01:00 committed by Mauro Carvalho Chehab
parent 95f4325de9
commit fdc8817830
1 changed files with 1 additions and 1 deletions
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2
drivers/media/rc/ite-cir.c
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@ -242,7 +242,7 @@ static irqreturn_t ite_cir_isr(int irq, void *data)
}
/* check for the receive interrupt */
if (iflags & ITE_IRQ_RX_FIFO) {
if (iflags & (ITE_IRQ_RX_FIFO | ITE_IRQ_RX_FIFO_OVERRUN)) {
/* read the FIFO bytes */
rx_bytes = dev->params->get_rx_bytes(dev, rx_buf,
ITE_RX_FIFO_LEN);