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Subject: media: ite-cir: IR receiver stop working after receive overflow Author: Sean Young sean@mess.org Date: Sun Oct 17 13:01:15 2021 +0100

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: 28c7afb07ccf ("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

drivers/media/rc/ite-cir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

---

diff --git a/drivers/media/rc/ite-cir.c b/drivers/media/rc/ite-cir.c index 5bc23e8c6d91..4f77d4ebacdc 100644 --- a/drivers/media/rc/ite-cir.c +++ b/drivers/media/rc/ite-cir.c @@ -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);