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Subject: media: ite-cir: IR receiver stop working after receive overflow
Author: Sean Young <sean@xxxxxxxx>
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@xxxxxxxxx>
Tested-by: Bryan Pass <bryan.pass@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx>
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
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);
