From patchwork Mon Apr 12 09:54:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Billy Tsai X-Patchwork-Id: 12197513 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,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 AED68C433B4 for ; Mon, 12 Apr 2021 09:57:43 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2BEB56120B for ; Mon, 12 Apr 2021 09:57:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2BEB56120B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=aspeedtech.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=duBqN/o+JpXw1GitWKXiqaUePpuYzo8ioflW7MMw7eA=; b=Qe6w2hgkqqk5uZ6PYttyLwVs3 ncCwnfFu+ee2i6QboJVYop8rQT5Q/AHpH6i+ovckALRKC1HpG7FqZxUNCy7/La7mq7Xiq9FNgAKms nZdNG/eKVW2l7dvbHzMB2xGoWxCC/bn3OkPry/Bo08R17to55JoSkXm7jMNP3Dn7U+essWx9RuKfk 0dQCJCgRL+aLAPCF33QqCjRu2lHiESRRW0h1PYaVF+OHzp94jKY2KQVz7iL3zZUgH+jk19OPemo7S vGZcxf26S3FaIonYhSHO3WUBgSSnrJ013o5E7oXM3YVezsupT202HUsnV6BBS2zD381KsJf3MOACU tSnTPv1Yg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lVtIn-006NF8-8g; Mon, 12 Apr 2021 09:56:17 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lVtIG-006NAd-V8 for linux-arm-kernel@desiato.infradead.org; Mon, 12 Apr 2021 09:55:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Type:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Sender :Reply-To:Content-ID:Content-Description; bh=UYOomuEcze9nXi9tNKySqzEImD9Tuc014M48ZnFFIBk=; b=IxHjRsSpnlPT4oMiOd4J1AUdIv luYpMawb6yyPniAUs4CDpL4QDeZAUwv0utD0HyawsV7D17JCmRqC5BbH0/2upCFe2h8b8MQdzVLgw 5M58n9MNllSubmHXocoCxvbAMEENx2UL9L1U7ZRsRh/Cpa5mF9euGwjpkwirTBh0e+7X/gApiUMPM SKU3I3pu7wc+zKLnt+Y6fE6MeYtQsJD5FBi1xt7bt7EZfTvM+wnvxd5hmhqUj21Ha299zyRxiQMog jm0yoXtDG+1wNdIb3ldTialiWR7cUo+OX3cuM4e4bT+5udSeFRakqRQ3aoYB/sTl9+uDirGvEKN6q yXqESYxw==; Received: from twspam01.aspeedtech.com ([211.20.114.71]) by casper.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lVtI8-0049Iz-F8 for linux-arm-kernel@lists.infradead.org; Mon, 12 Apr 2021 09:55:40 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 13C9iS0o096463; Mon, 12 Apr 2021 17:44:29 +0800 (GMT-8) (envelope-from billy_tsai@aspeedtech.com) Received: from BillyTsai-pc.aspeed.com (192.168.2.149) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 12 Apr 2021 17:54:50 +0800 From: Billy Tsai To: , , , , , , , , , , , , CC: Subject: [PATCH 2/4] dt-bindings: Add bindings for aspeed pwm Date: Mon, 12 Apr 2021 17:54:55 +0800 Message-ID: <20210412095457.15095-3-billy_tsai@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210412095457.15095-1-billy_tsai@aspeedtech.com> References: <20210412095457.15095-1-billy_tsai@aspeedtech.com> MIME-Version: 1.0 X-Originating-IP: [192.168.2.149] X-ClientProxiedBy: TWMBX02.aspeed.com (192.168.0.24) To TWMBX02.aspeed.com (192.168.0.24) X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 13C9iS0o096463 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210412_105538_693946_BF481091 X-CRM114-Status: GOOD ( 11.98 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patch adds device bindings for aspeed pwm device which should be the sub-node of aspeed,ast2600-pwm-tach. Signed-off-by: Billy Tsai --- .../bindings/pwm/aspeed,ast2600-pwm.yaml | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml diff --git a/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml b/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml new file mode 100644 index 000000000000..7a7ff0260d27 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2021 ASPEED, Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/aspeed,ast2600-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED AST2600 PWM controller + +maintainers: + - Billy Tsai + +description: | + The ASPEED PWM controller can support upto 16 PWM outputs. + +properties: + compatible: + enum: + - aspeed,ast2600-pwm + + "#pwm-cells": + const: 3 + +pwm-cells: + - channel +# period in terms of nanoseconds + - period +# PWM_POLARITY_INVERTED + - flag + +additionalProperties: false + +examples: + - | + // The PWM should be a subnode of a "aspeed,ast2600-pwn-tach" compatible node. + pwm_tach@1e610000 { + compatible = "aspeed,ast2600-pwm-tach", "simple-mfd", "syscon"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x1e610000 0x100>; + ranges = <0 0x1e610000 0x100>; + pwm: pwm@0 { + compatible = "aspeed,ast2600-pwm"; + #pwm-cells = <3>; + reg = <0x0 0x100>; + }; + };