From patchwork Fri Feb 17 16:03:48 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 729220 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3vPyZF3bvXz9s8T for ; Sat, 18 Feb 2017 03:06:29 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934494AbdBQQFJ (ORCPT ); Fri, 17 Feb 2017 11:05:09 -0500 Received: from mx08-00178001.pphosted.com ([91.207.212.93]:29937 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S934273AbdBQQFH (ORCPT ); Fri, 17 Feb 2017 11:05:07 -0500 Received: from pps.filterd (m0046660.ppops.net [127.0.0.1]) by mx08-00178001.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id v1HFuX2c023565; Fri, 17 Feb 2017 17:04:04 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx08-.pphosted.com with ESMTP id 28hrmacfat-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 17 Feb 2017 17:04:04 +0100 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 0C96131; Fri, 17 Feb 2017 16:04:04 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag5node3.st.com [10.75.127.15]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id DA41526E7; Fri, 17 Feb 2017 16:04:03 +0000 (GMT) Received: from localhost (10.75.127.49) by SFHDAG5NODE3.st.com (10.75.127.15) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Fri, 17 Feb 2017 17:04:03 +0100 From: Fabrice Gasnier To: , , , , , CC: , , , , , , , , , , Subject: [RFC 3/4] dt-bindings: iio: add support for GPIO triggers Date: Fri, 17 Feb 2017 17:03:48 +0100 Message-ID: <1487347429-31761-4-git-send-email-fabrice.gasnier@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1487347429-31761-1-git-send-email-fabrice.gasnier@st.com> References: <1487347429-31761-1-git-send-email-fabrice.gasnier@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.49] X-ClientProxiedBy: SFHDAG4NODE3.st.com (10.75.127.12) To SFHDAG5NODE3.st.com (10.75.127.15) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-17_13:, , signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document Industrial I/O GPIO trigger support. Signed-off-by: Fabrice Gasnier --- .../bindings/iio/trigger/iio-trig-gpio.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt diff --git a/Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt b/Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt new file mode 100644 index 0000000..a8dbf5c --- /dev/null +++ b/Documentation/devicetree/bindings/iio/trigger/iio-trig-gpio.txt @@ -0,0 +1,26 @@ +Industrial I/O - GPIO based trigger + +GPIOs may be used as IIO trigger provider, when trigger is connected to +GPIO lines. + +Required properties: +- compatible: Should be "iio-gpio-trigger" +- gpios: Should specify one GPIO line used as trigger source. + See Documentation/devicetree/bindings/gpio/gpio.txt +- #io-trigger-cells: Should be 0, as simple trigger provider. + See Documentation/devicetree/bindings/iio/iio-bindings.txt + +Optional properties: +- label: String to specifiy trigger name. +- gpio-trigger-rising-edge: A rising edge on GPIO will trigger. +- gpio-trigger-falling-edge: A falling edge on GPIO will trigger. + Note: Both rising and falling edge may be used. In case none of + rising or falling edge is selected, rising edge is selected by + default. + +Example: + gpiotrig0: iio-gpio-trigger0 { + #io-trigger-cells = <0>; + compatible = "iio-gpio-trigger"; + gpios = <&gpioa 11 0>; + }