diff mbox series

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

Message ID 20240921190721.6082-1-sean@mess.org
State New
Headers show
Series media: gpio-ir-tx: Driver does not behave with PREEMPT_RT | expand

Commit Message

Sean Young Sept. 21, 2024, 7:07 p.m. UTC
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>
---
 drivers/media/rc/Kconfig | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

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.