/* * INT3402 thermal driver for memory temperature reporting * * Copyright (C) 2014, Intel Corporation * Authors: Aaron Lu * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #include #include #include #include #include "int340x_thermal_zone.h" #define INT3402_PERF_CHANGED_EVENT 0x80 #define INT3402_THERMAL_EVENT 0x90 struct int3402_thermal_data { acpi_handle *handle; struct int34x_thermal_zone *int340x_zone; }; static void int3402_notify(acpi_handle handle, u32 event, void *data) { struct int3402_thermal_data *priv = data; if (!priv) return; switch (event) { case INT3402_PERF_CHANGED_EVENT: break; case INT3402_THERMAL_EVENT: int340x_thermal_zone_device_update(priv->int340x_zone, THERMAL_TRIP_VIOLATED); break; default: break; } } static int int3402_thermal_probe(struct platform_device *pdev) { struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); struct int3402_thermal_data *d; int ret; if (!acpi_has_method(adev->handle, "_TMP")) return -ENODEV; d = devm_kzalloc(&pdev->dev, sizeof(*d), GFP_KERNEL); if (!d) return -ENOMEM; d->int340x_zone = int340x_thermal_zone_add(adev, NULL); if (IS_ERR(d->int340x_zone)) return PTR_ERR(d->int340x_zone); ret = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, int3402_notify, d); if (ret) { int340x_thermal_zone_remove(d->int340x_zone); return ret; } d->handle = adev->handle; platform_set_drvdata(pdev, d); return 0; } static int int3402_thermal_remove(struct platform_device *pdev) { struct int3402_thermal_data *d = platform_get_drvdata(pdev); acpi_remove_notify_handler(d->handle, ACPI_DEVICE_NOTIFY, int3402_notify); int340x_thermal_zone_remove(d->int340x_zone); return 0; } static const struct acpi_device_id int3402_thermal_match[] = { {"INT3402", 0}, {} }; MODULE_DEVICE_TABLE(acpi, int3402_thermal_match); static struct platform_driver int3402_thermal_driver = { .probe = int3402_thermal_probe, .remove = int3402_thermal_remove, .driver = { .name = "int3402 thermal", .acpi_match_table = int3402_thermal_match, }, }; module_platform_driver(int3402_thermal_driver); MODULE_DESCRIPTION("INT3402 Thermal driver"); MODULE_LICENSE("GPL"); select>
path: root/sound/pci/ctxfi/xfi.c
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 19:03:21 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 20:22:18 +0100
commitaaaec6fc755447a1d056765b11b24d8ff2b81366 (patch)
treea7f4167960ee1df86739905b6ccdeb95465bfe5f /sound/pci/ctxfi/xfi.c
parent08d85f3ea99f1eeafc4e8507936190e86a16ee8c (diff)
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed interesting code in x86. The code (ab)uses irq_domain_activate_irq() to reconfigure an already activated interrupt. That trips over the prevention code now. Fix it by deactivating the interrupt before activating the new configuration. Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once" Reported-and-tested-by: Mike Galbraith <efault@gmx.de> Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos
Diffstat (limited to 'sound/pci/ctxfi/xfi.c')