From patchwork Sun Dec 13 08:10:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Damien Le Moal X-Patchwork-Id: 343394 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, 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 D4297C433FE for ; Sun, 13 Dec 2020 08:13:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 74CE422D74 for ; Sun, 13 Dec 2020 08:13:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404134AbgLMINb (ORCPT ); Sun, 13 Dec 2020 03:13:31 -0500 Received: from esa1.hgst.iphmx.com ([68.232.141.245]:32105 "EHLO esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404130AbgLMINa (ORCPT ); Sun, 13 Dec 2020 03:13:30 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1607847209; x=1639383209; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=MQK/vb8NBPxRh5mHQhMV5bOBm1Zq0AgJmS+3j2J54wg=; b=D+CBUlAlDNGzG3R9fYktpGz8sKrvQY+i3MthxwkXHJHbWXko6XoxDqcV z7SDxR4WA7luUt/yqB13Hq942RO8PhS6gD40Ga0J0MKdOBLhALGBXJhtF HiK32pn8UZi4V9Ejs+nV3gf/nTYFKg+WyB2KoT9PYzwMWj0G4vHjF7ZDm S8OqGvy+u77DbFBTQkcZf3X0d7Hhb6UYYUGR1ByNSThcgfGv6+INg2j4K lrGk2qzqPhba7W+DJXp8jCQwKMekmpfbCziwT/GsdKXVjAf2O0l5b1A98 /o0vxA6oqzuyjvM3N/lsJI0vjv6ukYTVq0hj2j8+HAjwxOsTQKgJ5gQwe Q==; IronPort-SDR: bx69zx7vPKLfv15ofu0SlkL5dzwiD/TH0JhikNPJqF53DNVtM5YtZ2LsQvzSksDjbKzrTaBtOO c/a3GmL5fM+JULro0OV1WGuwnFb09I7D9TeR2+z9TdQMowTpoM4O6ndPQ0BTylir7hKpgCgRfF Yhkx89rep2GAeXfpAEHhdwf0PfSa1LGFTGrthiEVj7ew9s4KEghX/wIIBmw5exyj38JOrMZYwG 0zRJBnuhHmzNOU0IzuRbSQCo90n68atlsIhETxkzSman6u/uAc+whW68vPSccSMfmdL1Ejg/ae yzc= X-IronPort-AV: E=Sophos;i="5.78,415,1599494400"; d="scan'208";a="265208194" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 13 Dec 2020 16:10:43 +0800 IronPort-SDR: QX10ksyCmuuHWoQerMfG4y49V9fHNRQL5vd4ukMTCibfnug2ltz083zlpC8LiOeladC6Bekkrk kU3rOfiPo4+1oYXkaK2mzaLxFWHdBKOJfW3gTnEX2Hxf1nKybWgUXCrBcP6Q9TdDuZ3NF64i/L j8v6OcdRdg7V+cRUvf0h9y+tJOrsxvPzlyS+95YoM7+T381CC3J7064DnVBrB2kJF2GFzKz3yE WaYsmTkMaDpZSs72cw1sPRrhTKmG4Xd1WuOHBgSbUnhqdHtcYx7er0er6SXNVPFqIgZt+J2sIV sUNLc/FQHWMSWKfHVEESYiO2 Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Dec 2020 23:56:04 -0800 IronPort-SDR: qEv9igjrrP4z4heeansmisFfCBHHetvIIUm3Lypue2sM68pUKqdyMFfWxXBbhPxoO9WkII4DKu mmFFInJovkIJHB6dwDQwLkVrvgTjIY7NI3NQiZ/SMzd7kQ4uIcCqiSg6Tg/+KOCu0tck0Z09mS 7oSGEUEz8YkoGSgfUrOtj9REWJdHoesvL/602SP2+RX45oL6wa+2Y4ZQaZGkiOHu6jA0To2uF5 QgkEkZ2Q8q/pGKUq76NudHGjxAs47FhsQG2ws43frCGPp6WNDdICK+WW3yCdf6QYxafKfb5TXx ToU= WDCIronportException: Internal Received: from phd004806.ad.shared (HELO twashi.fujisawa.hgst.com) ([10.84.71.197]) by uls-op-cesaip02.wdc.com with ESMTP; 13 Dec 2020 00:10:42 -0800 From: Damien Le Moal To: Palmer Dabbelt , linux-riscv@lists.infradead.org, Rob Herring , devicetree@vger.kernel.org, Stephen Boyd , linux-clk@vger.kernel.org, Linus Walleij , linux-gpio@vger.kernel.org, Philipp Zabel Cc: Sean Anderson Subject: [PATCH v9 11/22] dt-binding: mfd: Document canaan, k210-sysctl bindings Date: Sun, 13 Dec 2020 17:10:05 +0900 Message-Id: <20201213081016.179192-12-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201213081016.179192-1-damien.lemoal@wdc.com> References: <20201213081016.179192-1-damien.lemoal@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Document the device tree bindings of the Canaan Kendryte K210 SoC system controller driver in Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml. Signed-off-by: Damien Le Moal --- .../bindings/mfd/canaan,k210-sysctl.yaml | 109 ++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml diff --git a/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml b/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml new file mode 100644 index 000000000000..c24ad45cabb5 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/canaan,k210-sysctl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Canaan Kendryte K210 System Controller Device Tree Bindings + +maintainers: + - Damien Le Moal + +description: + Canaan Inc. Kendryte K210 SoC system controller which provides a + register map for controlling the clocks, reset signals and pin power + domains of the SoC. + +properties: + compatible: + items: + - const: canaan,k210-sysctl + - const: syscon + - const: simple-mfd + + clocks: + maxItems: 1 + description: + System controller Advanced Power Bus (APB) interface clock source. + + clock-names: + items: + - const: pclk + + reg: + maxItems: 1 + + clock-controller: + # Child node + type: object + $ref: "../clock/canaan,k210-clk.yaml" + description: + Clock controller for the SoC clocks. This child node definition + should follow the bindings specified in + Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml. + + reset-controller: + # Child node + type: object + $ref: "../reset/canaan,k210-rst.yaml" + description: + Reset controller for the SoC. This child node definition + should follow the bindings specified in + Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml. + + syscon-reboot: + # Child node + type: object + $ref: "../power/reset/syscon-reboot.yaml" + description: + Reboot method for the SoC. This child node definition + should follow the bindings specified in + Documentation/devicetree/bindings/power/reset/syscon-reboot.yaml. + +required: + - compatible + - clocks + - reg + - clock-controller + +additionalProperties: false + +examples: + - | + #include + #include + + clocks { + in0: oscllator { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <26000000>; + }; + }; + + sysctl: syscon@50440000 { + compatible = "canaan,k210-sysctl", + "syscon", "simple-mfd"; + reg = <0x50440000 0x100>; + clocks = <&sysclk K210_CLK_APB1>; + clock-names = "pclk"; + + sysclk: clock-controller { + #clock-cells = <1>; + compatible = "canaan,k210-clk"; + clocks = <&in0>; + }; + + sysrst: reset-controller { + compatible = "canaan,k210-rst"; + #reset-cells = <1>; + }; + + reboot: syscon-reboot { + compatible = "syscon-reboot"; + regmap = <&sysctl>; + offset = <48>; + mask = <1>; + value = <1>; + }; + };