From patchwork Sun Sep 18 14:29:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Jonker X-Patchwork-Id: 12979509 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3EEEFC54EE9 for ; Sun, 18 Sep 2022 14:31:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:From:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=IyGm0llhcRKH2Xvmb6ksBnnAu1MM0kseecopbpFme/Q=; b=qMIeaEzft+Jtn8 EIWRIjX9bUXrxPUFVz6OOKZNfCAjtyHKok51EEp3h/SzrhL+DmlkiCDjtjA/H2dSasAJAs+MgBixM UzraqKUyKvXqIqombhkHauawo9vFRN1iaBr8a+JZOSy97zlnKMPC2JgKgUQ4zPtOGxHoWZeZ30ca/ pqwJ6dh8XToifEoQ6Itjn6+zSxLqP77ETE+s3oG5YVdZGJwDyiWjr25x0oFYpgAEyDCy9IHJJgSro m1asFPByr8bZEbfDn+8TaemFtD/5lM5d8xL/3kHh69lBHQ3GQbv078kntEYIv1hVQwkB2ckZzcpCQ zYDdHozPkmzDcZM/YkDw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oZvIq-00H2qC-MN; Sun, 18 Sep 2022 14:29:48 +0000 Received: from mail-ej1-x62d.google.com ([2a00:1450:4864:20::62d]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oZvIn-00H2ng-QC; Sun, 18 Sep 2022 14:29:47 +0000 Received: by mail-ej1-x62d.google.com with SMTP id go34so59079399ejc.2; Sun, 18 Sep 2022 07:29:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:content-language:cc:to:subject:from :user-agent:mime-version:date:message-id:from:to:cc:subject:date; bh=FveU6nkoo+81cQCfrUzlLL5Yuhu16gBocdqQxDEMQCg=; b=BjP83lXkZjyctfT4Np2yzmqYCVKRXxOheLYomYNmMgc8IhvR9Xi8NRF02psi6zyRd5 SVQ/RB60dZ5K5qRIE5XrEDuvSRBmOUAYJfJWLMvg4DYoxas+31zMn0MpBOyKne2V2hSv EHiXc1PkJcwGqGbwbyn+PEyRxqluJDlxdcfFuHoWrGljanCkrW4Fu37J566t2uFD4o4G KxEO1VjyJ0OM0kt+hsl1tSIDJtX0WjSMad0gkVWHfvmImMfOTv3mzkCfF6NR9mSA8a49 Y+LAdYbFJGUR82P5RnkO5TA6Q3FXy22t7PjowGD86kVIlsqIKGh94UuGx2ov72170M57 YCtg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:content-language:cc:to:subject:from :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date; bh=FveU6nkoo+81cQCfrUzlLL5Yuhu16gBocdqQxDEMQCg=; b=NRA5nRC2elEDaDmmuZhNxhmfibNEFiNTJReg/++AX3LJAB8zPuCWLa36r+uTVtHhmG 2ElR1bWm+xpy7yl/lXpcdK/NVQnF7mELoPhl2v0YHrw0gU1Fkz6Z/M+TgDodcn/FV+f7 IKLgLtKIlBwIEl7LhGDx2vj6P/CwWrLwPnZ5mmxk4xp2Ug/BEiTMKn07ZKptTcedDu5/ utNemy7h5wakd7gCOZd+TycfA/Fw6O6nk3OBSLpbmkk0TWV7BM9cOwf+dRbL0ECmzeag XLTBabYBUIQKRhhe8Sjo/U33UvbXZJ1mP9TA7r6nfMrmiHd1pbfF031s5/G9TdenJdrY 0dNA== X-Gm-Message-State: ACrzQf3spS6bP//JaIelXvwKR5a5h77OwsXv+o2xR12SWGHa8Xh+pZUi ExnfCLtMt1OvSn/QMoEip4Q= X-Google-Smtp-Source: AMsMyM7QTZ+2BOwNQu7fsiBYvlATBN/hD+pJTQiXqKGORiTZFqY5hh9qjZPO+ns5wlWpD7gRqFySWA== X-Received: by 2002:a17:907:2d0d:b0:77c:d528:70b8 with SMTP id gs13-20020a1709072d0d00b0077cd52870b8mr9559188ejc.681.1663511383259; Sun, 18 Sep 2022 07:29:43 -0700 (PDT) Received: from [192.168.2.1] (81-204-249-205.fixed.kpn.net. [81.204.249.205]) by smtp.gmail.com with ESMTPSA id h19-20020a1709063b5300b0074134543f82sm13961670ejf.90.2022.09.18.07.29.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 18 Sep 2022 07:29:42 -0700 (PDT) Message-ID: <4e69a06d-7b53-ab48-1e50-2b29ff3a54e6@gmail.com> Date: Sun, 18 Sep 2022 16:29:41 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0 From: Johan Jonker Subject: [PATCH v3] dt-bindings: clock: convert rockchip,rk3128-cru.txt to YAML To: heiko@sntech.de Cc: zhangqing@rock-chips.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, sboyd@kernel.org, mturquette@baylibre.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220918_072945_901207_890A3FA3 X-CRM114-Status: GOOD ( 17.86 ) 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 Convert rockchip,rk3128-cru.txt to YAML. Signed-off-by: Johan Jonker Reviewed-by: Krzysztof Kozlowski --- Changed V3: Fix xin24m clock-names position Changed V2: Use SPDX-License-Identifier: (GPL-2.0+ OR MIT) Add more clocks --- Rockchip recently replied on other clock-patches to dual-license the binding. https://lore.kernel.org/all/510d1180-bc8e-7820-c772-ed7f35447087@rock-chips.com/ From Finley with an @rock-chips.com address, so this should be ok. Document history: git log Documentation/devicetree/bindings/clock/*rk312*.txt Author: Elaine Zhang dt-bindings: add documentation for rk3126 clock Author: Elaine Zhang dt-bindings: add bindings for rk3128 clock controller --- .../bindings/clock/rockchip,rk3128-cru.txt | 58 -------------- .../bindings/clock/rockchip,rk3128-cru.yaml | 76 +++++++++++++++++++ 2 files changed, 76 insertions(+), 58 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.yaml diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt deleted file mode 100644 index 6f8744fd301b..000000000000 --- a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt +++ /dev/null @@ -1,58 +0,0 @@ -* Rockchip RK3126/RK3128 Clock and Reset Unit - -The RK3126/RK3128 clock controller generates and supplies clock to various -controllers within the SoC and also implements a reset controller for SoC -peripherals. - -Required Properties: - -- compatible: should be "rockchip,rk3126-cru" or "rockchip,rk3128-cru" - "rockchip,rk3126-cru" - controller compatible with RK3126 SoC. - "rockchip,rk3128-cru" - controller compatible with RK3128 SoC. -- reg: physical base address of the controller and length of memory mapped - region. -- #clock-cells: should be 1. -- #reset-cells: should be 1. - -Optional Properties: - -- rockchip,grf: phandle to the syscon managing the "general register files" - If missing pll rates are not changeable, due to the missing pll lock status. - -Each clock is assigned an identifier and client nodes can use this identifier -to specify the clock which they consume. All available clocks are defined as -preprocessor macros in the dt-bindings/clock/rk3128-cru.h headers and can be -used in device tree sources. Similar macros exist for the reset sources in -these files. - -External clocks: - -There are several clocks that are generated outside the SoC. It is expected -that they are defined using standard clock bindings with following -clock-output-names: - - "xin24m" - crystal input - required, - - "ext_i2s" - external I2S clock - optional, - - "gmac_clkin" - external GMAC clock - optional - -Example: Clock controller node: - - cru: cru@20000000 { - compatible = "rockchip,rk3128-cru"; - reg = <0x20000000 0x1000>; - rockchip,grf = <&grf>; - - #clock-cells = <1>; - #reset-cells = <1>; - }; - -Example: UART controller node that consumes the clock generated by the clock - controller: - - uart2: serial@20068000 { - compatible = "rockchip,serial"; - reg = <0x20068000 0x100>; - interrupts = ; - clock-frequency = <24000000>; - clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>; - clock-names = "sclk_uart", "pclk_uart"; - }; diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.yaml new file mode 100644 index 000000000000..b3d9c8eca989 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0+ OR MIT) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/rockchip,rk3128-cru.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip RK3126/RK3128 Clock and Reset Unit (CRU) + +maintainers: + - Elaine Zhang + - Heiko Stuebner + +description: | + The RK3126/RK3128 clock controller generates and supplies clock to various + controllers within the SoC and also implements a reset controller for SoC + peripherals. + Each clock is assigned an identifier and client nodes can use this identifier + to specify the clock which they consume. All available clocks are defined as + preprocessor macros in the dt-bindings/clock/rk3128-cru.h headers and can be + used in device tree sources. Similar macros exist for the reset sources in + these files. + +properties: + compatible: + enum: + - rockchip,rk3126-cru + - rockchip,rk3128-cru + + reg: + maxItems: 1 + + "#clock-cells": + const: 1 + + "#reset-cells": + const: 1 + + clocks: + minItems: 1 + maxItems: 3 + + clock-names: + minItems: 1 + items: + - const: xin24m + - enum: + - ext_i2s + - gmac_clkin + - enum: + - ext_i2s + - gmac_clkin + + rockchip,grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the syscon managing the "general register files" (GRF), + if missing pll rates are not changeable, due to the missing pll + lock status. + +required: + - compatible + - reg + - "#clock-cells" + - "#reset-cells" + +additionalProperties: false + +examples: + - | + cru: clock-controller@20000000 { + compatible = "rockchip,rk3128-cru"; + reg = <0x20000000 0x1000>; + rockchip,grf = <&grf>; + #clock-cells = <1>; + #reset-cells = <1>; + };