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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT 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 0DA7DC43144 for ; Sat, 23 Jun 2018 18:55:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C1A8B24CD2 for ; Sat, 23 Jun 2018 18:55:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C1A8B24CD2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=it-klinger.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751989AbeFWSzJ (ORCPT ); Sat, 23 Jun 2018 14:55:09 -0400 Received: from mout.kundenserver.de ([212.227.17.13]:38239 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751724AbeFWSzH (ORCPT ); Sat, 23 Jun 2018 14:55:07 -0400 Received: from localhost ([2.166.249.57]) by mrelayeu.kundenserver.de (mreue105 [212.227.15.183]) with ESMTPSA (Nemesis) id 0LvRqd-1gEU8B2vKt-010dk0; Sat, 23 Jun 2018 20:54:24 +0200 Date: Sat, 23 Jun 2018 20:54:21 +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 1/3] iio: hx711: add data-ready-delay-ns property in DT Message-ID: <20180623185420.GA17842@arbeit> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-Provags-ID: V03:K1:76LOJmFfToqRxhpmDosCC967j9e9ifRZqhdN/JQ+f844enYI/ag azxLNo+DvyGsPzTut40hrYA01YJLms+s/6fJP0bW3tCENggtDmjFDfhiiC87Gd8093KH0EG nQYl/i7PMlrej7uudkKsNyAjvwo8OcI2UOSDmqUtkuoscRTEypyxO9gu4fNrBz+FQSYdN1P YUi/zLonUaAMMm6xyxmpg== X-UI-Out-Filterresults: notjunk:1;V01:K0:QkxKoAJsf8g=:G1EmF6xwxvnL6t5aBzGS4B 9pFvLVkW2E4F9z1NPX1GUVrcw6/S1lvOIw+blfzwFdsycErP/saGIoCAvKEF4nWFOBqb0DEh1 WULk5AkG83kPdw8xVtVHohbwRV66mobwId97nLD1ZplfNu5VgMarQG9LnxubHdJCqjkSyKpS3 wUvgqb3l6h9tI+ZwrOLZP87adzHPXqe7cqacGDXAoOjBQt/ILlYE1sel6psLn6e9ILazS8Uhc PGbkYtm2IFeDOZR27cJyZxRbjj7l8IzCp/r3C6LvS7bYGehWV6gEN62eiqU97sMtf1Ho02yLT 4zdDhWlwmShPeAUd4j8VzfzhlKlcpYJl4sd0I82eHFaOxbz4R/XT63ye/vGCkTlHeomXAgG1w vrfS49PWuAhZYcWQFzk/SlvsVSsyrlHlyJx/jAsIUGRrNmp25TpsfKYRSY74szTSGeOaH8f/5 fGJ6xPtTY3PEUNCYt2SBW7XciFVOkHWj7LWuWE/fPOl8FbAQKsGWVMllt8sVR2xSjAc9LaUVc EiLRt+NNACXqjLGUeUShbJcO6kkt3q595wbuWQ0wi9FwNSp7gKHeBU4+c1+FPQaoumtzWU3Gn 4nSyhv/iUZmr0b33BTezc+oWlrD8/YBST+cYyv2R+49VrL2pd35ynDungexfqUm6g5gNkWH9j tOUcP/VL5JIFDi0UShLDyDMAxKlUWt/Db7zbzqCu9LnXF+0mxBj6AKyuJwpKz9y7R+5I= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org add 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 | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt b/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt index b3629405f568..8c9bcaa4d750 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: + - 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 { +weight { compatible = "avia,hx711"; sck-gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>; dout-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>; avdd-suppy = <&avdd>; + data-ready-delay-ns = <1000>; }; -- 2.1.4