From patchwork Wed Dec 2 03:24:49 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: 11944527 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=-18.2 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,URIBL_BLOCKED, 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 E161BC64E7C for ; Wed, 2 Dec 2020 03:25:50 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 7D3FF221E9 for ; Wed, 2 Dec 2020 03:25:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7D3FF221E9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=wdc.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=rOaow5Adu+bFFWCfuX+1ZlEQYtZIIpZqlKlb3z63yJs=; b=EQ7AcFizsz8viFRD+/59Er58m clhQLevIV+5nJyaNQ7SL+iSp/uNG9bcSNBcb0kaHPb8vAs/7bFqRHmBwGY718ipH/zQbbtt9KTZNw 2lfosQ/KztjfhcKFYUbs44LhNbT1XzjqIHa2R6ds0wSMfVySTdUCc622z/JChkreVUlJABtpIqvJo mQBEYjcntIHlEznTvlVquI2s/rINarpgAZ/IpkG0zXji6qvNfraWZotTwVAXIUe0hupaq8f0bsBvC LwDhszMcET4ETVOimbEQdpk3XzXLrvJwO4qAy9TNfk5jHWEkVEK9nkpnH3jjIm0VQnmiadmOUsv2i fL0mkWspQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkIlw-0000vX-Gh; Wed, 02 Dec 2020 03:25:40 +0000 Received: from esa4.hgst.iphmx.com ([216.71.154.42]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkIlp-0000nN-Fg for linux-riscv@lists.infradead.org; Wed, 02 Dec 2020 03:25:36 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1606879533; x=1638415533; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4U4b/nqfPlar1rNpNlwWEX+TNC6mHk8oUWWOJcFYm1M=; b=V9+m9wUgtPx4c84yneF519F9pg1PRNwiIeSgeWzV9UA15LYKJ+vt+ANv WnjnKTwTKJ9ob7MV2ptpDrdJvr4Wbpia3eVcvABFpwN8e6YAw1qPkuxUB SGFfzrRkKbuTFmsy+SSdXIwcgpfLK/IHCvR8yCpAJ724Y5QO91szRN9/1 71yQBVJFzAmZNdq3midyIPz/ae+450q4QCvrNEjS/mBrno7D0IC8yYacp LfkF7eAOwfaHd8I8KoMEZQyhnts8XjrgSqN5cL4jJkslhAsGoVHrhOqbF hDaaq8iIuA9zcqPRw/SNrYR8PEdggsrEYgNp7rpMak7sQD9Hx1zNmOAnU g==; IronPort-SDR: lmnthrV/7OsGWkyJPhe1glIU4JBnZrlKXCQU23qGT0o4jkB4IMRk4mOmFHZIWf0dP2q/RzvwqR DkKo4qUTc7Q0QlYCXd8oINKWziQy6VNGrZdu/WB45zAdHku7i/ToYRXzsKLYL+HKzkEhubgolJ HqtWD3cADEzYLaZkF/IuE3LwDo3uRAt+Fvx/Z3IW4eJ9f0XbqRTbTFvyPNX1oWVp9FYRV3gk3+ 0HcGTLyYYSS/leDEl2TEc+8AVAxpkAYiFjOZXkEWnA3yYd8qmt/eiHwbklEhkVfRP5PRG47DFI +jE= X-IronPort-AV: E=Sophos;i="5.78,385,1599494400"; d="scan'208";a="153922354" Received: from uls-op-cesaip01.wdc.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 02 Dec 2020 11:25:25 +0800 IronPort-SDR: qtwiU8XBS/DNBNVnAeZ6UGI+rxJZb37RNsvdbtKoGVhHEj7CFOshYi93lzZK7VQJNGSXvs60Iw 6WnNQHkLp9P8tsysRJUMg2Fn0H9FZyWRQ= 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; 01 Dec 2020 19:11:00 -0800 IronPort-SDR: jClx1gkeTuhWSHnS7qdGvykLA5KUahbqpfNM8S+uVO4FKtlbbwu8SQh+scqHKpInkvIpWgqMuJ WS1JYJrbaw4g== WDCIronportException: Internal Received: from phd004834.ad.shared (HELO twashi.fujisawa.hgst.com) ([10.84.71.196]) by uls-op-cesaip02.wdc.com with ESMTP; 01 Dec 2020 19:25:24 -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 Subject: [PATCH v4 10/21] dt-binding: mfd: Document canaan, k210-sysctl bindings Date: Wed, 2 Dec 2020 12:24:49 +0900 Message-Id: <20201202032500.206346-11-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201202032500.206346-1-damien.lemoal@wdc.com> References: <20201202032500.206346-1-damien.lemoal@wdc.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201201_222533_718301_9B775954 X-CRM114-Status: GOOD ( 13.69 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sean Anderson Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.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 | 116 ++++++++++++++++++ 1 file changed, 116 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..1847def8e8f6 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml @@ -0,0 +1,116 @@ +# 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: + allOf: + - items: + - const: canaan,k210-sysctl + - const: syscon + - const: simple-mfd + + clocks: + description: + System controller Advanced Power Bus (APB) interface clock source. + + clock-names: + maxItems: 1 + items: + - const: pclk + + reg: + maxItems: 1 + description: + Offset and length of the system controller register space. + + reg-io-width: + const: 4 + + 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: osc { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <26000000>; + }; + }; + + sysctl: syscon@50440000 { + compatible = "canaan,k210-sysctl", + "syscon", "simple-mfd"; + reg = <0x50440000 0x100>; + reg-io-width = <4>; + 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>; + }; + };