From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=3.0 tests=DKIM_ADSP_ALL,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 313CCC43381 for ; Sun, 24 Mar 2019 04:34:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E056A20879 for ; Sun, 24 Mar 2019 04:34:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=aussec.com header.i=@aussec.com header.b="et6i47aw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728015AbfCXEeS (ORCPT ); Sun, 24 Mar 2019 00:34:18 -0400 Received: from csm1.csm-office.com.au ([165.228.118.109]:38338 "EHLO sleepy.aussec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725783AbfCXEeQ (ORCPT ); Sun, 24 Mar 2019 00:34:16 -0400 X-Virus-Scanned: amavisd-new at aussec.com Received: from hpdv6.aussec.com.com (c110-21-61-29.farfl4.nsw.optusnet.com.au [110.21.61.29]) (authenticated bits=0) by sleepy.aussec.com (8.15.2/8.15.2) with ESMTPSA id x2O4XY4l008019 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Sun, 24 Mar 2019 15:33:55 +1100 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=aussec.com; s=2016; t=1553402036; bh=fYEKkpdWnZioXg7DaxhUYrSOwNnjiJwK5psYgwYJekQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=et6i47aw3oth8ZcR0AUS3m2GA8x7wKjN485i4EOGynGmBMNLZvNc/aPdboXB+Jdda 0e+CPBAXOuyWcQZUYyKSDwcjAl6wF3LRToDTz9idTJePSStIt0GK9TJ2Ol+6kt1jux Iji2w13AngR0IM2b2vY3CZJl+ufkn0scSSqwyAh3qUVe+gXCM9Q0oquSgX/+AGDHX0 iCD41fh8jv4y3VrMt8j1kf6JyB2u4LP9O4a+4XQiv/OuyDDFQfpaX82b0X5EwE0rkS xG4DzWanB6oxXPpbj115n7hOwjs5aYzfONEqP80puogVO5EQjtmbgKrRKvIfRfQqII c3VXRJkWTSXeg== From: Tom Burkart To: Linux kernel mailing list , Andrew Morton Cc: Tom Burkart , Rodolfo Giometti , Lukas Senger Subject: [PATCH v18 2/3] dt-bindings: pps: pps-gpio PPS ECHO implementation Date: Sun, 24 Mar 2019 15:33:04 +1100 Message-Id: <20190324043305.6627-3-tom@aussec.com> X-Mailer: git-send-email 2.12.3 In-Reply-To: <20190324043305.6627-2-tom@aussec.com> References: <20190321154633.b9d1a356a100a4a14fa219f7@linux-foundation.org> <20190324043305.6627-1-tom@aussec.com> <20190324043305.6627-2-tom@aussec.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch implements the device tree binding changes required for the PPS ECHO functionality for pps-gpio, that sysfs claims is available already. It adds two DT properties for configuring the PPS ECHO functionality. This patch is provided separated from the rest of the patch per Documentation/devicetree/bindings/submitting-patches.txt. This patch was originally written by Lukas Senger as part of a masters thesis project and modified for inclusion into the linux kernel by Tom Burkart. Acked-by: Rodolfo Giometti Reviewed-by: Rob Herring Signed-off-by: Lukas Senger Signed-off-by: Tom Burkart --- Documentation/devicetree/bindings/pps/pps-gpio.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/pps/pps-gpio.txt b/Documentation/devicetree/bindings/pps/pps-gpio.txt index 3683874832ae..9012a2a02e14 100644 --- a/Documentation/devicetree/bindings/pps/pps-gpio.txt +++ b/Documentation/devicetree/bindings/pps/pps-gpio.txt @@ -7,6 +7,10 @@ Required properties: - compatible: should be "pps-gpio" - gpios: one PPS GPIO in the format described by ../gpio/gpio.txt +Additional required properties for the PPS ECHO functionality: +- echo-gpios: one PPS ECHO GPIO in the format described by ../gpio/gpio.txt +- echo-active-ms: duration in ms of the active portion of the echo pulse + Optional properties: - assert-falling-edge: when present, assert is indicated by a falling edge (instead of by a rising edge) @@ -19,5 +23,8 @@ Example: gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>; assert-falling-edge; + echo-gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>; + echo-active-ms = <100>; + compatible = "pps-gpio"; }; -- 2.12.3