1.\" $OpenBSD: rkiovd.4,v 1.1 2023/04/01 08:48:04 kettenis Exp $ 2.\" 3.\" Copyright (c) 2023 Mark Kettenis <kettenis@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: April 1 2023 $ 18.Dt RKIOVD 4 19.Os 20.Sh NAME 21.Nm rkiovd 22.Nd Rockchip I/O voltage domains 23.Sh SYNOPSIS 24.Cd "rkiovd* at fdt?" 25.Sh DESCRIPTION 26The 27.Nm 28driver controls the I/O voltage domains of the Rockchip RK3566/RK3568 29SoCs. 30It makes sure the voltage configuration of the domains stays 31synchronized with the regulators that supply the voltage to these 32domains. 33.Sh SEE ALSO 34.Xr intro 4 35.Sh HISTORY 36The 37.Nm 38device driver first appeared in 39.Ox 7.4 . 40.Sh AUTHORS 41.An -nosplit 42The 43.Nm 44driver was written by 45.An Mark Kettenis Aq Mt kettenis@openbsd.org . 46