From patchwork Fri Mar 31 12:32:37 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrice Gasnier X-Patchwork-Id: 745620 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 3vvgtP0jMcz9s0Z for ; Fri, 31 Mar 2017 23:34:37 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933187AbdCaMds (ORCPT ); Fri, 31 Mar 2017 08:33:48 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:59366 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933147AbdCaMdq (ORCPT ); Fri, 31 Mar 2017 08:33:46 -0400 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 v2VCSpcu032526; Fri, 31 Mar 2017 14:32:57 +0200 Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-.pphosted.com with ESMTP id 29h2kaphws-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 31 Mar 2017 14:32:56 +0200 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 6723934; Fri, 31 Mar 2017 12:32:56 +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 37E81297A; Fri, 31 Mar 2017 12:32:56 +0000 (GMT) Received: from localhost (10.75.127.51) by SFHDAG5NODE3.st.com (10.75.127.15) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Fri, 31 Mar 2017 14:32:55 +0200 From: Fabrice Gasnier To: , , , , , CC: , , , , , , , , , , Subject: [PATCH v2 1/2] dt-bindings: iio: stm32-adc: add option to set resolution Date: Fri, 31 Mar 2017 14:32:37 +0200 Message-ID: <1490963559-32159-2-git-send-email-fabrice.gasnier@st.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1490963559-32159-1-git-send-email-fabrice.gasnier@st.com> References: <1490963559-32159-1-git-send-email-fabrice.gasnier@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.51] 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=2017-03-31_11:, , signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add documentation for 'assigned-resolution-bits' dt optional property. Signed-off-by: Fabrice Gasnier Acked-by: Rob Herring --- Changes in v2: - rename property from 'st,adc-res' to 'assigned-resolution-bits' so it is more common. --- Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 4 ++++ 1 file changed, 4 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..e35f9f1 100644 --- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt @@ -57,6 +57,9 @@ 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. +- assigned-resolution-bits: Resolution (bits) to use for conversions. Must + match device available resolutions (e.g. can be 6, 8, 10 or 12 on stm32f4). + Default is maximum resolution if unset. Example: adc: adc@40012000 { @@ -84,6 +87,7 @@ Example: st,adc-channels = <8>; dmas = <&dma2 0 0 0x400 0x0>; dma-names = "rx"; + assigned-resolution-bits = <8>; }; ... other adc child nodes follow...