1.\"- 2.\" Copyright (c) 2018 Emmanuel Vadot <manu@freebsd.org> 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd Apr 26, 2018 28.Dt RK_GPIO 4 29.Os 30.Sh NAME 31.Nm rk_gpio 32.Nd driver for the gpio controller on RockChip SoCs 33.Sh SYNOPSIS 34.Cd "options SOC_ROCKCHIP_RK3328" 35.Sh DESCRIPTION 36The 37.Nm 38device driver provides support for the gpio controller device present 39on RockChip SoC. 40.Sh HARDWARE 41The current version of the 42.Nm 43driver supports the gpio banks with one of the following 44compatible strings : 45.Pp 46.Bl -bullet -compact 47.It 48rockchip,gpio-bank 49.El 50.Sh SEE ALSO 51.Xr gpiobus 4 , 52.Xr gpioctl 8 , 53.Sh HISTORY 54The 55.Nm 56device driver first appeared in 57.Fx 12.0 . 58.Sh AUTHORS 59The 60.Nm 61device driver and manpage was written by 62.An Emmanuel Vadot Aq Mt manu@freebsd.org . 63