diff options
Diffstat (limited to 'drivers/macintosh/windfarm_pid.h')
| -rw-r--r-- | drivers/macintosh/windfarm_pid.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/macintosh/windfarm_pid.h b/drivers/macintosh/windfarm_pid.h index bbccc22d42b8..335613a200fb 100644 --- a/drivers/macintosh/windfarm_pid.h +++ b/drivers/macintosh/windfarm_pid.h @@ -1,11 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _WINDFARM_PID_H +#define _WINDFARM_PID_H + /* * Windfarm PowerMac thermal control. Generic PID helpers * * (c) Copyright 2005 Benjamin Herrenschmidt, IBM Corp. * <benh@kernel.crashing.org> * - * Released under the term of the GNU GPL v2. - * * This is a pair of generic PID helpers that can be used by * control loops. One is the basic PID implementation, the * other one is more specifically tailored to the loops used @@ -83,3 +85,5 @@ struct wf_cpu_pid_state { extern void wf_cpu_pid_init(struct wf_cpu_pid_state *st, struct wf_cpu_pid_param *param); extern s32 wf_cpu_pid_run(struct wf_cpu_pid_state *st, s32 power, s32 temp); + +#endif /* _WINDFARM_PID_H */ |