mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 06:33:41 +00:00
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From c93b0344d24ba63e0e4caeb693a9fcb7320aae3a Mon Sep 17 00:00:00 2001
|
|
From: Giedrius <giedrius@blokas.io>
|
|
Date: Wed, 27 Feb 2019 14:27:28 +0000
|
|
Subject: [PATCH 362/806] Fix for Pisound kernel module in Real Time kernel
|
|
configuration.
|
|
|
|
When handler of data_available interrupt is fired, queue_work ends up
|
|
getting called and it can block on a spin lock which is not allowed in
|
|
interrupt context. The fix was to run the handler from a thread context
|
|
instead.
|
|
---
|
|
sound/soc/bcm/pisound.c | 8 ++++----
|
|
1 file changed, 4 insertions(+), 4 deletions(-)
|
|
|
|
--- a/sound/soc/bcm/pisound.c
|
|
+++ b/sound/soc/bcm/pisound.c
|
|
@@ -1,6 +1,6 @@
|
|
/*
|
|
* Pisound Linux kernel module.
|
|
- * Copyright (C) 2016-2017 Vilniaus Blokas UAB, https://blokas.io/pisound
|
|
+ * Copyright (C) 2016-2019 Vilniaus Blokas UAB, https://blokas.io/pisound
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
@@ -532,10 +532,10 @@ static void pisnd_spi_gpio_uninit(void)
|
|
|
|
static int pisnd_spi_gpio_irq_init(struct device *dev)
|
|
{
|
|
- return request_irq(
|
|
- gpiod_to_irq(data_available),
|
|
+ return request_threaded_irq(
|
|
+ gpiod_to_irq(data_available), NULL,
|
|
data_available_interrupt_handler,
|
|
- IRQF_TIMER | IRQF_TRIGGER_RISING,
|
|
+ IRQF_TIMER | IRQF_TRIGGER_RISING | IRQF_ONESHOT,
|
|
"data_available_int",
|
|
NULL
|
|
);
|