From 0015d9a2a72745308ef9728a746ff7b1e82138bc Mon Sep 17 00:00:00 2001 From: Amit Kucheria Date: Mon, 11 May 2020 17:55:01 +0530 Subject: thermal/governors: Prefix all source files with gov_ Bang-bang governor source file is prefixed with gov_. Do the same for other governors for consistency so they're easy to find in the sources. Signed-off-by: Amit Kucheria Signed-off-by: Daniel Lezcano Link: https://lore.kernel.org/r/b9a85d3204712f14e320504948c12712dc0b291b.1589199124.git.amit.kucheria@linaro.org --- drivers/thermal/gov_user_space.c | 47 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 drivers/thermal/gov_user_space.c (limited to 'drivers/thermal/gov_user_space.c') diff --git a/drivers/thermal/gov_user_space.c b/drivers/thermal/gov_user_space.c new file mode 100644 index 000000000000..82a7198bbe71 --- /dev/null +++ b/drivers/thermal/gov_user_space.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * user_space.c - A simple user space Thermal events notifier + * + * Copyright (C) 2012 Intel Corp + * Copyright (C) 2012 Durgadoss R + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include +#include + +#include "thermal_core.h" + +/** + * notify_user_space - Notifies user space about thermal events + * @tz: thermal_zone_device + * @trip: trip point index + * + * This function notifies the user space through UEvents. + */ +static int notify_user_space(struct thermal_zone_device *tz, int trip) +{ + char *thermal_prop[5]; + int i; + + mutex_lock(&tz->lock); + thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s", tz->type); + thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d", tz->temperature); + thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=%d", trip); + thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d", tz->notify_event); + thermal_prop[4] = NULL; + kobject_uevent_env(&tz->device.kobj, KOBJ_CHANGE, thermal_prop); + for (i = 0; i < 4; ++i) + kfree(thermal_prop[i]); + mutex_unlock(&tz->lock); + return 0; +} + +static struct thermal_governor thermal_gov_user_space = { + .name = "user_space", + .throttle = notify_user_space, +}; +THERMAL_GOVERNOR_DECLARE(thermal_gov_user_space); -- cgit v1.2.3