diff options
author | Amit Kucheria <amit.kucheria@linaro.org> | 2020-05-11 14:25:01 +0200 |
---|---|---|
committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-05-22 18:48:54 +0200 |
commit | 0015d9a2a72745308ef9728a746ff7b1e82138bc (patch) | |
tree | 9dd4e0dc208f154e26e4f6d56913aa8bad045873 /drivers/thermal/gov_user_space.c | |
parent | thermal/drivers/user_space: Sort headers alphabetically (diff) | |
download | linux-0015d9a2a72745308ef9728a746ff7b1e82138bc.tar.xz linux-0015d9a2a72745308ef9728a746ff7b1e82138bc.zip |
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 <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/b9a85d3204712f14e320504948c12712dc0b291b.1589199124.git.amit.kucheria@linaro.org
Diffstat (limited to 'drivers/thermal/gov_user_space.c')
-rw-r--r-- | drivers/thermal/gov_user_space.c | 47 |
1 files changed, 47 insertions, 0 deletions
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 <durgadoss.r@intel.com> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include <linux/slab.h> +#include <linux/thermal.h> + +#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); |