From patchwork Tue Feb 28 16:51:18 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 733745 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 3vXn6Y5rClz9s8N for ; Wed, 1 Mar 2017 05:24:37 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751845AbdB1SYe (ORCPT ); Tue, 28 Feb 2017 13:24:34 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:59006 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751646AbdB1SYb (ORCPT ); Tue, 28 Feb 2017 13:24:31 -0500 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by m0046037.ppops.net (8.16.0.11/8.16.0.11) with SMTP id v1SGiGDO015676; Tue, 28 Feb 2017 17:52:23 +0100 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 28vhs98a7a-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Tue, 28 Feb 2017 17:52:23 +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 E34A231; Tue, 28 Feb 2017 16:52:22 +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 C24F12A7E; Tue, 28 Feb 2017 16:52:22 +0000 (GMT) Received: from localhost (10.75.127.45) by SFHDAG5NODE3.st.com (10.75.127.15) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Tue, 28 Feb 2017 17:52:22 +0100 From: Fabrice Gasnier To: , , , , , CC: , , , , , , , , , , Subject: [PATCH v3 5/6] dt-bindings: iio: stm32-adc: add external interrupt trigger Date: Tue, 28 Feb 2017 17:51:18 +0100 Message-ID: <1488300679-3259-6-git-send-email-fabrice.gasnier@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1488300679-3259-1-git-send-email-fabrice.gasnier@st.com> References: <1488300679-3259-1-git-send-email-fabrice.gasnier@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.45] X-ClientProxiedBy: SFHDAG4NODE2.st.com (10.75.127.11) To SFHDAG5NODE3.st.com (10.75.127.15) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-02-28_15:, , signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document support for EXTI trigger. STM32 ADC can use external interrupt line as trigger source for conversions. Signed-off-by: Fabrice Gasnier --- .../devicetree/bindings/iio/adc/st,stm32-adc.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt index 5dfc88e..9e4af7f 100644 --- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt @@ -57,6 +57,10 @@ Optional properties: - dmas: Phandle to dma channel for this ADC instance. See ../../dma/dma.txt for details. - dma-names: Must be "rx" when dmas property is being used. +- io-triggers: Phandle to external interrupt trigger (e.g. EXTI). Must be + phandle to EXTI11 on stm32f4. See ../iio-bindings.txt for details on trigger + consumer. +- io-trigger-names: Must be "exti" when io-triggers property is being used. Example: adc: adc@40012000 { @@ -88,3 +92,20 @@ Example: ... other adc child nodes follow... }; + +Example with EXTI11 trigger: + trig: interrupt-trigger { + #io-trigger-cells = <0>; + compatible = "interrupt-trigger"; + interrupts = <11 0>; + interrupt-parent = <&gpioa>; + } + + adc: adc@40012000 { + ... + adc@0 { + ... + io-triggers = <&trig>; + io-trigger-names = "exti"; + }; + };