From 28c7afb07ccfc0a939bb06ac1e7afe669901c65a Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Mon, 22 Feb 2021 09:08:35 +0100
Subject: [PATCH] media: ite-cir: check for receive overflow
Git-commit: 28c7afb07ccfc0a939bb06ac1e7afe669901c65a
Patch-mainline: v5.13-rc1
References: git-fixes
It's best if this condition is reported.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/media/rc/ite-cir.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/drivers/media/rc/ite-cir.c
+++ b/drivers/media/rc/ite-cir.c
@@ -285,8 +285,14 @@ static irqreturn_t ite_cir_isr(int irq,
/* read the interrupt flags */
iflags = dev->params.get_irq_causes(dev);
+ /* Check for RX overflow */
+ if (iflags & ITE_IRQ_RX_FIFO_OVERRUN) {
+ dev_warn(&dev->rdev->dev, "receive overflow\n");
+ ir_raw_event_reset(dev->rdev);
+ }
+
/* check for the receive interrupt */
- if (iflags & (ITE_IRQ_RX_FIFO | ITE_IRQ_RX_FIFO_OVERRUN)) {
+ if (iflags & ITE_IRQ_RX_FIFO) {
/* read the FIFO bytes */
rx_bytes =
dev->params.get_rx_bytes(dev, rx_buf,