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+.\" $NetBSD: amdgpio.4,v 1.2 2025/02/26 17:23:49 uwe Exp $
+.\"
+.\" Copyright (c) 2022 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to The NetBSD Foundation
+.\" by Emmanuel Dreyfus.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd February 3, 2025
+.Dt AMDGPIO 4
+.Os
+.Sh NAME
+.Nm amdgpio
+.Nd AMD GPIO Controller
+.Sh SYNOPSIS
+.Cd "amdgpio* at acpi?"
+.Cd "gpio* at gpiobus?"
+.Sh DESCRIPTION
+.Nm
+provides a
+.Xr gpio 4
+interface for the following AMD chipsets:
+.Pp
+.Bl -item -offset indent -compact
+.It
+AMD Ryzen 7 5800U with Radeon Graphics
+.It
+AMD Ryzen 7 8840HS with Radeon 780M Graphics
+.El
+.Pp
+The driver supports pin configuration flags
+.Pp
+.Bl -item -offset indent -compact
+.It
+.Dv GPIO_PIN_INPUT
+.It
+.Dv GPIO_PIN_OUTPUT
+.It
+.Dv GPIO_PIN_INOUT
+.It
+.Dv GPIO_PIN_ININ
+.It
+.Dv GPIO_PIN_PULLUP
+.It
+.Dv GPIO_PIN_PULLDOWN
+.El
+.Pp
+and interrupt capabilies
+.Pp
+.Bl -item -offset indent -compact
+.It
+.Dv GPIO_INTR_POS_EDGE
+.It
+.Dv GPIO_INTR_NEG_EDGE
+.It
+.Dv GPIO_INTR_DOUBLE_EDGE
+.It
+.Dv GPIO_INTR_HIGH_LEVEL
+.It
+.Dv GPIO_INTR_LOW_LEVEL
+.El
+.Sh SEE ALSO
+.Xr gpio 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Nx 11.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver is derived from
+.Xr qcomgpio 4
+and
+.Ox Ap s
+.Xr amdgpio 4 .
+Man page was written by
+.An Ryo ONODERA
+.Aq Mt ryoon@NetBSD.org .