From patchwork Tue Jul 3 12:49:22 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andreas Klinger X-Patchwork-Id: 10504005 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6398060225 for ; Tue, 3 Jul 2018 12:50:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 09E9C28A8E for ; Tue, 3 Jul 2018 12:50:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 06DE22897F; Tue, 3 Jul 2018 12:50:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1EF1728A97 for ; Tue, 3 Jul 2018 12:50:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752863AbeGCMuG (ORCPT ); Tue, 3 Jul 2018 08:50:06 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:36657 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752494AbeGCMuF (ORCPT ); Tue, 3 Jul 2018 08:50:05 -0400 Received: from localhost ([91.52.186.254]) by mrelayeu.kundenserver.de (mreue004 [212.227.15.167]) with ESMTPSA (Nemesis) id 0MEaJJ-1fKcMl2vQP-00FhGC; Tue, 03 Jul 2018 14:49:22 +0200 Date: Tue, 3 Jul 2018 14:49:22 +0200 From: Andreas Klinger To: jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, robh+dt@kernel.org, mark.rutland@arm.com, mchehab@kernel.org, davem@davemloft.net, gregkh@linuxfoundation.org, akpm@linux-foundation.org, linus.walleij@linaro.org, rdunlap@infradead.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/3] iio: hx711: add avia, data-ready-delay-ns property in DT Message-ID: <20180703124922.GA18022@arbeit> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-Provags-ID: V03:K1:7nJkyO78xqlTGxK3jJsp0WXt08qRiXBPEbjVXx9mKCl/PgUbyie Pi08aIlQnur89BupTAjddhdJyWWcO8P861GJIV2q6j4n+UkncbM9yaBqnzztpwpuY2s4A+G WWIUGSZaO8WsXrp2xkVfKbxy81kylr6tX2xYBVO4KdtNLpLqV5qG6vspcxJoDwZElQ7YZ+F f1T3eni53OfHxYhbKoENA== X-UI-Out-Filterresults: notjunk:1; V01:K0:ZpicJW8w38I=:YHLUc1l3unpIeetd7t/WsP 6FZcD8hJ3JT87jxLkkiQzCf57fr88yCxdsjWd7T12TuBsy3H6HI6bHrglyP7M/qtMHoESXmO7 lTmeZfXVhWych5A+Rqyk7ldjZc9vr3O7hjtUhoAHPdtFoODkFH+dqnI0xZe8jD2v7Oj3UYrwq 26hjo6Xmf97igPI9xAo546AG9hDX3iZykWycZzF1eOEGiw9+/lbRW+qVOimNorxiXauJ1pgIr EkoORIkFaY9iXDmG/n/SEPJqJgcWKgjwBELgSXzAYhBkYN0Fz7ZQ8G4w1jbkhtchM3MRbvNiF WWZ+OmFMsQ8zz6aIS6A/DWzJC8CK3ToHIbpcPYSaYwYVlUKh0MCDOMcr1IWRDHQSRq4bdFK15 c4YqTrnF5XU550Wqdtndc8UaITtst6PdX8J3LwYmOifGof3e2iTa5fYG8NPZiYqbkdsgCdYnJ GM6uH2xMr1ytCcDxd5BmlhaAFDESkmxAINWaNkbemYAK06NxxFLAaLjXM/yhV7lGcoXdo3TKX OM0S9J6X3G2LN7ui40OJ0BQGn/og+uohx9rmMq9xK7bQkQI8cm4CnIQSBjXtVFxWiwco4p6g4 1r3g2dqAtpUi8N9ucHPZ0PjD2ezUZ4QJUywKCXoYTtBa/9QZjYjGq7VTPAMj68dW5Rw490N/X /p4PwVE58zDV27QEpSTUH9t0InRep/ItrEclDZMsgje8Q4tHGuchAKhl+gGYAn2RUZNo= Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP add avia,data-ready-delay-ns property for hx711 ADC this is the delay after rising PD_SCK until DOUT is read and assumed to be ready Signed-off-by: Andreas Klinger --- Documentation/devicetree/bindings/iio/adc/avia-hx711.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt b/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt index b3629405f568..669d213e2964 100644 --- a/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt +++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt @@ -8,11 +8,18 @@ Required properties: See Documentation/devicetree/bindings/gpio/gpio.txt - avdd-supply: Definition of the regulator used as analog supply +Optional properties: + - avia,data-ready-delay-ns: additional delay in nanoseconds between + rising of PD_SCK until DOUT is ready + should be less then maximum PD_SCK high + time which is 50000 in the datasheet + Example: weight@0 { compatible = "avia,hx711"; sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>; dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>; avdd-suppy = <&avdd>; + avia,data-ready-delay-ns = <1000>; };