From: Sean Young <sean@mess.org>
Date: Fri, 20 Sep 2024 09:03:25 +0000 (+0200)
Subject: media: gpio-ir-tx: Driver does not behave with PREEMPT_RT
X-Git-Tag: v6.13-rc1~149^2~232
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2af8dbd4abbfc0007dd4dabb254dcf15dcdfe73e;p=thirdparty%2Flinux.git

media: gpio-ir-tx: Driver does not behave with PREEMPT_RT

This driver bit-bangs a signal with interrupts disabled. The signal can
last for up to half a second (IR_MAX_DURATION).

A much better way of transmitting IR is using the pwm-ir-tx driver,
which does not disable interrupts.

Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---

diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 74d69ce22a33e..0a8aeafdb7e07 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -184,6 +184,7 @@ config IR_GPIO_TX
 	tristate "GPIO IR Bit Banging Transmitter"
 	depends on LIRC
 	depends on (OF && GPIOLIB) || COMPILE_TEST
+	depends on !PREEMPT_RT
 	help
 	   Say Y if you want to a GPIO based IR transmitter. This is a
 	   bit banging driver.