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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/devfreq/governor_performance.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/devfreq/governor_performance.c')
-rw-r--r-- | drivers/devfreq/governor_performance.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/devfreq/governor_performance.c b/drivers/devfreq/governor_performance.c new file mode 100644 index 000000000..5dbc1e56e --- /dev/null +++ b/drivers/devfreq/governor_performance.c @@ -0,0 +1,61 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/drivers/devfreq/governor_performance.c + * + * Copyright (C) 2011 Samsung Electronics + * MyungJoo Ham <myungjoo.ham@samsung.com> + */ + +#include <linux/devfreq.h> +#include <linux/module.h> +#include "governor.h" + +static int devfreq_performance_func(struct devfreq *df, + unsigned long *freq) +{ + /* + * target callback should be able to get floor value as + * said in devfreq.h + */ + *freq = DEVFREQ_MAX_FREQ; + return 0; +} + +static int devfreq_performance_handler(struct devfreq *devfreq, + unsigned int event, void *data) +{ + int ret = 0; + + if (event == DEVFREQ_GOV_START) { + mutex_lock(&devfreq->lock); + ret = update_devfreq(devfreq); + mutex_unlock(&devfreq->lock); + } + + return ret; +} + +static struct devfreq_governor devfreq_performance = { + .name = DEVFREQ_GOV_PERFORMANCE, + .get_target_freq = devfreq_performance_func, + .event_handler = devfreq_performance_handler, +}; + +static int __init devfreq_performance_init(void) +{ + return devfreq_add_governor(&devfreq_performance); +} +subsys_initcall(devfreq_performance_init); + +static void __exit devfreq_performance_exit(void) +{ + int ret; + + ret = devfreq_remove_governor(&devfreq_performance); + if (ret) + pr_err("%s: failed remove governor %d\n", __func__, ret); + + return; +} +module_exit(devfreq_performance_exit); +MODULE_LICENSE("GPL"); |