From patchwork Mon May 10 07:35:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Billy Tsai X-Patchwork-Id: 12247115 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=-17.4 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=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 64B2EC433ED for ; Mon, 10 May 2021 07:37:47 +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 DCB1A6128E for ; Mon, 10 May 2021 07:37:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DCB1A6128E 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=BMgX/1+o09i9YU9/VE09y2hOgqUuJeR6aqU7+LepEmg=; b=pzNVo00SnWOhdPvF/buRiv6tX VF2TUnDYfncxq3qG0illjdxb+IVk46tNwaXiDC5wN9ob6CZSSbLLnmEQGmrB2BYMSRTfvp+RilPtP xKVRwmQ8kap9+bEPHYPLUMSQHqBgZV20lsmEJnoOkTlet5uqhdifYsmDThTdGZQGY265g+vsZdtMU +zLLV4RJfC2b5FO/9Vc2FNP/T18vw+0Sn9Cx2sr2i2dS7WHHNurK006qbRl+S476k7C45v4aYQqx7 Y/C90sZIc2PoO8UhH3tUhwT/Wx+6ifAk2JtirIrI8gYMyy9jKWOxVZPp2WQGksTvuaex70lId9hYA KDoG517hQ==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lg0SO-00DWmE-GJ; Mon, 10 May 2021 07:36:00 +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 1lg0SM-00DWlK-8x for linux-arm-kernel@desiato.infradead.org; Mon, 10 May 2021 07:35:58 +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=FnleKOErcFYfux/tLbuuhV7iNxRmdDv59Q1pq6AHiTc=; b=ZneCnPNk4HuXaDlgMOHtoMZHF+ 3fQOOADYUhGLZ78cV/a2Tt59hUovPMwI992mfT2CYCqSAJom04IcVSNtHQB8/1aQL5QE3ew4acCle o2K1hMe5WeFFejI7VmtoxieaYBQGcOkFWQRVu+QhEv68RR4yeV/+GGNAhQqVFpUGoenJmiC2hw0is 8F7OytvfF7I5agYNNNM+2/IUf/3OHX8ZgxZ3FOfV+uLJl2N8jtA38TXPfM0uFJkAjxGGPBoK1RkxH 9OhoeerCDDSepOsAJsO+lnHxOrOZbcnN4eXGFI5ivrAoHAPF7IW275y4375KnOaPofS9y7jw84d0F 7Y21e1bw==; Received: from twspam01.aspeedtech.com ([211.20.114.71]) by casper.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lg0R8-005oVD-2F for linux-arm-kernel@lists.infradead.org; Mon, 10 May 2021 07:35:25 +0000 Received: from mail.aspeedtech.com ([192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 14A7LOkj042445; Mon, 10 May 2021 15:21:24 +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, 10 May 2021 15:33:27 +0800 From: Billy Tsai To: , , , , , , , , , , , , CC: Subject: [v4 1/2] dt-bindings: Add bindings for aspeed pwm-tach. Date: Mon, 10 May 2021 15:35:10 +0800 Message-ID: <20210510073511.7291-2-billy_tsai@aspeedtech.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210510073511.7291-1-billy_tsai@aspeedtech.com> References: <20210510073511.7291-1-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 14A7LOkj042445 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210510_083519_004134_98235B90 X-CRM114-Status: GOOD ( 15.27 ) 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 binding for aspeed pwm-tach device which is a multi-function device include pwm and tach function and pwm/tach device bindings which should be the child-node of pwm-tach device. Signed-off-by: Billy Tsai --- .../bindings/hwmon/aspeed,ast2600-tach.yaml | 66 +++++++++++++++ .../bindings/mfd/aspeed,ast2600-pwm-tach.yaml | 82 +++++++++++++++++++ .../bindings/pwm/aspeed,ast2600-pwm.yaml | 62 ++++++++++++++ 3 files changed, 210 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml create mode 100644 Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml create mode 100644 Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml diff --git a/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml b/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml new file mode 100644 index 000000000000..1b502cccb362 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/aspeed,ast2600-tach.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2021 ASPEED, Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/aspeed,ast2600-tach.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ASPEED AST2600 Tach controller + +maintainers: + - Billy Tsai + +description: | + The ASPEED Tach controller can support upto 16 fan input. + This module is part of the ast2600-pwm-tach multi-function device. For more + details see ../mfd/aspeed,ast2600-pwm-tach.yaml. + +properties: + compatible: + enum: + - aspeed,ast2600-tach + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + pinctrl-0: true + + pinctrl-names: + const: default + + +required: + - compatible + - "#address-cells" + - "#size-cells" + +child-node: + type: object + properties: + reg: + description: + The tach channel used for this fan. + maxItems: 1 + aspeed,min-rpm: + description: + define the minimal revolutions per minute of the measure fan + used to calculate the sample period of tach + default: 1000 + aspeed,pulse-pr: + description: + Value specifying the number of pulses per revolution of the + monitored FAN. + default: 2 + aspeed,tach-div: + description: + define the tachometer clock divider as an integer. Formula of + tach clock = clock source / (2^tach-div)^2 + minimum: 0 + maximum: 15 + # The value that should be used if the property is not present + default: 5 + required: + - reg diff --git a/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml b/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml new file mode 100644 index 000000000000..97edc50b149b --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/aspeed,ast2600-pwm-tach.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2021 ASPEED, Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/aspeed,ast2600-pwm-tach.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PWM Tach controller Device Tree Bindings + +description: | + The PWM Tach controller is represented as a multi-function device which + includes: + PWM + Tach + +maintainers: + - Billy Tsai + +properties: + compatible: + items: + - enum: + - aspeed,ast2600-pwm-tach + - const: syscon + - const: simple-mfd + reg: + maxItems: 1 + clocks: + maxItems: 1 + resets: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - resets + +child-node: + "^pwm(@[0-9a-f]+)?$": + $ref: ../pwm/aspeed,ast2600-pwm.yaml + + "^tach(@[0-9a-f]+)?$": + $ref: ../hwmon/aspeed,ast2600-tach.yaml + +examples: + - | + #include + pwm_tach: pwm_tach@1e610000 { + compatible = "aspeed,ast2600-pwm-tach", "syscon", "simple-mfd"; + reg = <0x1e610000 0x100>; + clocks = <&syscon ASPEED_CLK_AHB>; + resets = <&syscon ASPEED_RESET_PWM>; + + pwm: pwm { + compatible = "aspeed,ast2600-pwm"; + #address-cells = <1>; + #size-cells = <0>; + #pwm-cells = <3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pwm0_default>; + pwm-ch@0 { + reg = <0>; + aspeed,wdt-reload-enable; + aspeed,wdt-reload-duty-point = <32>; + }; + }; + + tach: tach { + compatible = "aspeed,ast2600-tach"; + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_tach0_default>; + fan@0 { + reg = <0>; + aspeed,min-rpm = <1000>; + aspeed,pulse-pr = <2>; + aspeed,tach-div = <5>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml b/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml new file mode 100644 index 000000000000..f863b2866871 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/aspeed,ast2600-pwm.yaml @@ -0,0 +1,62 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (C) 2021 ASPEED, Inc. +%YAML 1.2 +--- +$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. + This module is part of the ast2600-pwm-tach multi-function device. For more + details see ../mfd/aspeed,ast2600-pwm-tach.yaml. + +properties: + compatible: + enum: + - aspeed,ast2600-pwm + + "#pwm-cells": + const: 3 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + pinctrl-0: true + + pinctrl-names: + const: default + + +required: + - compatible + - "#pwm-cells" + - "#address-cells" + - "#size-cells" + +child-node: + description: Set extend properties for each pwm channel. + type: object + properties: + reg: + description: + The pwm channel index. + maxItems: 1 + aspeed,wdt-reload-enable: + type: boolean + description: + Enable the function of wdt reset reload duty point. + aspeed,wdt-reload-duty-point: + description: + Define the duty point after wdt reset, 0 = 100% + minimum: 0 + maximum: 255 + required: + - reg