From 19226502bf6393706defe7f049c587b32c9b4f33 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Wed, 31 Jul 2019 18:23:26 +0200 Subject: brcm2708: update to latest patches from the RPi foundation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Álvaro Fernández Rojas --- ...ound-kernel-module-in-Real-Time-kernel-co.patch | 38 ++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.19/950-0365-Fix-for-Pisound-kernel-module-in-Real-Time-kernel-co.patch (limited to 'target/linux/brcm2708/patches-4.19/950-0365-Fix-for-Pisound-kernel-module-in-Real-Time-kernel-co.patch') diff --git a/target/linux/brcm2708/patches-4.19/950-0365-Fix-for-Pisound-kernel-module-in-Real-Time-kernel-co.patch b/target/linux/brcm2708/patches-4.19/950-0365-Fix-for-Pisound-kernel-module-in-Real-Time-kernel-co.patch new file mode 100644 index 0000000000..0ad588bd24 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0365-Fix-for-Pisound-kernel-module-in-Real-Time-kernel-co.patch @@ -0,0 +1,38 @@ +From 482738fa793cdc446e827233edc24d3db86ab1c0 Mon Sep 17 00:00:00 2001 +From: Giedrius +Date: Wed, 27 Feb 2019 14:27:28 +0000 +Subject: [PATCH 365/725] 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 + ); -- cgit v1.2.3