From owner-svn-src-head@freebsd.org Sat Mar 3 21:41:17 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 51511F3EB74; Sat, 3 Mar 2018 21:41:17 +0000 (UTC) (envelope-from ian@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id F407C77DFB; Sat, 3 Mar 2018 21:41:16 +0000 (UTC) (envelope-from ian@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id EEDF44220; Sat, 3 Mar 2018 21:41:16 +0000 (UTC) (envelope-from ian@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w23LfGHv069879; Sat, 3 Mar 2018 21:41:16 GMT (envelope-from ian@FreeBSD.org) Received: (from ian@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w23LfGjf069878; Sat, 3 Mar 2018 21:41:16 GMT (envelope-from ian@FreeBSD.org) Message-Id: <201803032141.w23LfGjf069878@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: ian set sender to ian@FreeBSD.org using -f From: Ian Lepore Date: Sat, 3 Mar 2018 21:41:16 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r330358 - head/share/man/man4 X-SVN-Group: head X-SVN-Commit-Author: ian X-SVN-Commit-Paths: head/share/man/man4 X-SVN-Commit-Revision: 330358 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 03 Mar 2018 21:41:17 -0000 Author: ian Date: Sat Mar 3 21:41:16 2018 New Revision: 330358 URL: https://svnweb.freebsd.org/changeset/base/330358 Log: Minor changes to wording. Modified: head/share/man/man4/fdt_pinctrl.4 Modified: head/share/man/man4/fdt_pinctrl.4 ============================================================================== --- head/share/man/man4/fdt_pinctrl.4 Sat Mar 3 21:23:31 2018 (r330357) +++ head/share/man/man4/fdt_pinctrl.4 Sat Mar 3 21:41:16 2018 (r330358) @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd March 2, 2018 +.Dd March 3, 2018 .Dt "FDT_PINCTRL" 4 .Os .Sh NAME @@ -36,13 +36,13 @@ .Pp Pin multiplexing is a technology used to re-purpose a single physical connection (depending on chip packaging it may be -pin, ball, or pad) to pull signal from one of SoC internal -controllers to peripheral devices. +pin, ball, or pad) by routing its signal to any one of several +different SoC internal devices. For example, based on the actual device design, a single SoC chip -pin can perform any of these roles: SPI clock, I2C +pin might perform any of these roles: SPI clock, I2C data, GPIO pin, or PWM signal. Function selection is performed by the pinmux controller, a SoC -hardware block, usually controlled a set of registers. +hardware block which is usually controlled by a set of registers. Pinmux controller capabilities and register format depend on the actual hardware implementation. .Pp @@ -104,11 +104,11 @@ backlight@7f000000 { } .Ed .Pp -The pinctrl driver should implement FDT_PINCTRL_CONFIGURE -method, register itself as pin configuration handler by +The pinctrl driver should implement the FDT_PINCTRL_CONFIGURE +method, register itself as a pin configuration handler by calling fdt_pinctrl_register function, and call .Xr fdt_pinctrl_configure_tree 9 -to configure pins for all enabled devices (device where +to configure pins for all enabled devices (devices where the "status" property is not set to "disabled"). .Sh SEE ALSO .Xr fdt_pinctrl 9