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[23.128.96.18]) by mx.google.com with ESMTP id z17si14359708eji.221.2021.03.02.16.40.01; Tue, 02 Mar 2021 16:40:23 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232714AbhCAIFX (ORCPT + 99 others); Mon, 1 Mar 2021 03:05:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232621AbhCAIEv (ORCPT ); Mon, 1 Mar 2021 03:04:51 -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 DF3A9C061786 for ; Mon, 1 Mar 2021 00:04:10 -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 1lGdX9-0003wl-5z; Mon, 01 Mar 2021 09:04:03 +0100 Received: from ore by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1lGdX8-0005my-Hv; Mon, 01 Mar 2021 09:04:02 +0100 From: Oleksij Rempel To: Rob Herring , William Breathitt Gray Cc: Oleksij Rempel , Linus Walleij , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Pengutronix Kernel Team , David Jander , Robin van der Gracht , linux-iio@vger.kernel.org, Jonathan Cameron Subject: [PATCH v8 1/2] dt-bindings: counter: add interrupt-counter binding Date: Mon, 1 Mar 2021 09:04:00 +0100 Message-Id: <20210301080401.22190-2-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210301080401.22190-1-o.rempel@pengutronix.de> References: <20210301080401.22190-1-o.rempel@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add binding for the interrupt counter node Signed-off-by: Oleksij Rempel Reviewed-by: Linus Walleij --- .../bindings/counter/interrupt-counter.yaml | 62 +++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/counter/interrupt-counter.yaml diff --git a/Documentation/devicetree/bindings/counter/interrupt-counter.yaml b/Documentation/devicetree/bindings/counter/interrupt-counter.yaml new file mode 100644 index 000000000000..fd075d104631 --- /dev/null +++ b/Documentation/devicetree/bindings/counter/interrupt-counter.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/counter/interrupt-counter.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Interrupt counter + +maintainers: + - Oleksij Rempel + +description: | + A generic interrupt counter to measure interrupt 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. + Interrupts or gpios are required. If both are defined, the interrupt will + take precedence for counting interrupts. + +properties: + compatible: + const: interrupt-counter + + interrupts: + maxItems: 1 + + gpios: + maxItems: 1 + +required: + - compatible + +anyOf: + - required: [ interrupts-extended ] + - required: [ interrupts ] + - required: [ gpios ] + +additionalProperties: false + +examples: + - | + + #include + #include + + counter-0 { + compatible = "interrupt-counter"; + interrupts-extended = <&gpio 0 IRQ_TYPE_EDGE_RISING>; + }; + + counter-1 { + compatible = "interrupt-counter"; + gpios = <&gpio 2 GPIO_ACTIVE_HIGH>; + }; + + counter-2 { + compatible = "interrupt-counter"; + interrupts-extended = <&gpio 2 IRQ_TYPE_EDGE_RISING>; + gpios = <&gpio 2 GPIO_ACTIVE_HIGH>; + }; + +... -- 2.29.2