mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 01:28:59 +00:00
20fe7e687e
Sync 6.1 patches with the RPi foundation. Since rpi-6.6.y is now the main branch of the RPi foundation, there won't be any new patches for linux 6.1. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
27 lines
847 B
Diff
27 lines
847 B
Diff
From 58c600f728f2787e905eff2f678fa9cf09694004 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.com>
|
|
Date: Fri, 2 Feb 2024 15:41:29 +0000
|
|
Subject: [PATCH 1274/1295] serial: sc16is7xx: Don't spin if no data received
|
|
|
|
There are multiple causes of interrupts, errors being one, and only the
|
|
receipt of data warrants continued polling.
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/2676
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
|
|
---
|
|
drivers/tty/serial/sc16is7xx.c | 2 ++
|
|
1 file changed, 2 insertions(+)
|
|
|
|
--- a/drivers/tty/serial/sc16is7xx.c
|
|
+++ b/drivers/tty/serial/sc16is7xx.c
|
|
@@ -762,6 +762,8 @@ static bool sc16is7xx_port_irq(struct sc
|
|
|
|
if (rxlen)
|
|
sc16is7xx_handle_rx(port, rxlen, iir);
|
|
+ else
|
|
+ rc = false;
|
|
break;
|
|
/* CTSRTS interrupt comes only when CTS goes inactive */
|
|
case SC16IS7XX_IIR_CTSRTS_SRC:
|