-# $OpenBSD: Makefile,v 1.23 2022/01/10 09:16:30 kettenis Exp $
+# $OpenBSD: Makefile,v 1.24 2022/02/20 19:33:48 kettenis Exp $
-MAN= agtimer.4 ampintc.4 apldart.4 apldog.4 aplhidev.4 apliic.4 \
+MAN= agtimer.4 ampintc.4 aplcpu.4 apldart.4 apldog.4 aplhidev.4 apliic.4 \
aplintc.4 aplmbox.4 aplns.4 aplpcie.4 aplpinctrl.4 aplpmgr.4 \
aplpmu.4 aplsmc.4 aplspi.4 aplspmi.4 apm.4 \
efi.4 intro.4 smbios.4
--- /dev/null
+.\" $OpenBSD: aplcpu.4,v 1.1 2022/02/20 19:33:48 kettenis Exp $
+.\"
+.\" Copyright (c) 2022 Mark Kettenis <kettenis@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: February 20 2022 $
+.Dt APLCPU 4 arm64
+.Os
+.Sh NAME
+.Nm aplcpu
+.Nd Apple CPU power states
+.Sh SYNOPSIS
+.Cd "aplcpu* at fdt?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for managing the CPU power states on Apple
+SoCs.
+These power states can be set to reduce power usage and extend battery
+life through the
+.Va hw.setperf
+.Xr sysctl 2
+mechanism.
+.Sh SEE ALSO
+.Xr sysctl 2,
+.Xr intro 4 ,
+.Xr apmd 8 ,
+.Xr sysctl 8
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 7.1 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Mark Kettenis Aq Mt kettenis@openbsd.org .