From patchwork Mon Oct 7 13:26:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 11177489 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 251A31599 for ; Mon, 7 Oct 2019 13:27:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0347721871 for ; Mon, 7 Oct 2019 13:27:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728592AbfJGN1V (ORCPT ); Mon, 7 Oct 2019 09:27:21 -0400 Received: from relay5-d.mail.gandi.net ([217.70.183.197]:33925 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728562AbfJGN1I (ORCPT ); Mon, 7 Oct 2019 09:27:08 -0400 X-Originating-IP: 86.250.200.211 Received: from localhost.localdomain (lfbn-1-17395-211.w86-250.abo.wanadoo.fr [86.250.200.211]) (Authenticated sender: miquel.raynal@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id 9277C1C0010; Mon, 7 Oct 2019 13:27:04 +0000 (UTC) From: Miquel Raynal To: Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , Mark Rutland Cc: , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Petazzoni , Miquel Raynal Subject: [PATCH v3 6/8] dt-bindings: iio: adc: max1027: Mark interrupts as optional Date: Mon, 7 Oct 2019 15:26:55 +0200 Message-Id: <20191007132657.4190-7-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191007132657.4190-1-miquel.raynal@bootlin.com> References: <20191007132657.4190-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The chips have a 'start conversion' and a 'end of conversion' pair of pins. They can be used but this is absolutely not mandatory as regular polling is supported by the chip depending on its internal clocking setup. There is no physical reason to force the use of interrupts so turn them optional. Also, once the interrupt turned optional, these devices fit perfectly the "trivial devices" described in the generic (yaml) bindings file, so instead of converting this text file to json schema, we can just add the relevant compatibles in: Documentation/devicetree/bindings/trivial-devices.yaml. Signed-off-by: Miquel Raynal --- Documentation/devicetree/bindings/iio/adc/max1027-adc.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt index e680c61dfb84..7b23d68f655c 100644 --- a/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/max1027-adc.txt @@ -3,6 +3,8 @@ Required properties: - compatible: Should be "maxim,max1027" or "maxim,max1029" or "maxim,max1031" - reg: SPI chip select number for the device + +Optional properties: - interrupts: IRQ line for the ADC see: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt