From patchwork Tue Jan 26 13:12:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 370815 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 7D4A7C433E9 for ; Tue, 26 Jan 2021 13:38:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E1F522D58 for ; Tue, 26 Jan 2021 13:38:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404532AbhAZNfz (ORCPT ); Tue, 26 Jan 2021 08:35:55 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404755AbhAZNf2 (ORCPT ); Tue, 26 Jan 2021 08:35:28 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF40FC061A29 for ; Tue, 26 Jan 2021 05:34:29 -0800 (PST) Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l4O9C-0001l2-9a; Tue, 26 Jan 2021 14:12:42 +0100 Received: from ore by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1l4O9A-0002CP-U5; Tue, 26 Jan 2021 14:12:40 +0100 From: Oleksij Rempel To: Rob Herring , William Breathitt Gray Cc: Oleksij Rempel , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Pengutronix Kernel Team , David Jander , Robin van der Gracht , linux-iio@vger.kernel.org Subject: [PATCH v4 1/2] dt-bindings: counter: add pulse-counter binding Date: Tue, 26 Jan 2021 14:12:38 +0100 Message-Id: <20210126131239.8335-2-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210126131239.8335-1-o.rempel@pengutronix.de> References: <20210126131239.8335-1-o.rempel@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: devicetree@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add binding for the pulse counter node Signed-off-by: Oleksij Rempel --- .../bindings/counter/pulse-counter.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/counter/pulse-counter.yaml diff --git a/Documentation/devicetree/bindings/counter/pulse-counter.yaml b/Documentation/devicetree/bindings/counter/pulse-counter.yaml new file mode 100644 index 000000000000..8a82091edd65 --- /dev/null +++ b/Documentation/devicetree/bindings/counter/pulse-counter.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/counter/pulse-counter.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Pulse counter + +maintainers: + - Oleksij Rempel + +description: | + A generic pulse counter to measure pulse frequency. It was developed and used + for agricultural devices to measure rotation speed of wheels or other tools. + Since the direction of rotation is not important, only one signal line is + needed. + +properties: + compatible: + const: virtual,pulse-counter + + interrupts: + maxItems: 1 + + gpios: + description: Optional diagnostic interface to measure signal level + maxItems: 1 + +required: + - compatible + - interrupts + +additionalProperties: false + +examples: + - | + + #include + #include + + counter-0 { + compatible = "virtual,pulse-counter"; + interrupts-extended = <&gpio 0 IRQ_TYPE_EDGE_RISING>; + }; + + counter-1 { + compatible = "virtual,pulse-counter"; + interrupts-extended = <&gpio 1 IRQ_TYPE_EDGE_RISING>; + gpios = <&gpio 1 GPIO_ACTIVE_HIGH>; + }; + +...