From patchwork Sun Dec 13 13:50:45 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: 343720 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 7E828C0018C for ; Sun, 13 Dec 2020 13:54:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E600224BD for ; Sun, 13 Dec 2020 13:54:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2407022AbgLMNyL (ORCPT ); Sun, 13 Dec 2020 08:54:11 -0500 Received: from esa3.hgst.iphmx.com ([216.71.153.141]:1980 "EHLO esa3.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2406995AbgLMNyK (ORCPT ); Sun, 13 Dec 2020 08:54:10 -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=1607867650; x=1639403650; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=MQK/vb8NBPxRh5mHQhMV5bOBm1Zq0AgJmS+3j2J54wg=; b=g1l6ptiQyOdZc7V0M0VGm0RyzwfBR+G56WFHyxSE4+G7Z/6N1lELg8mv zRVQbbPaifusRDdNeHIYYqkYJhkCpV3qrYFmJXIg3PUQohCTmDALoiyew MznKaoZAEuC9pQS6sOZxl5+Pna2P+9ZUXz+3Qd8ODAC2Ji6qcJ8Yc0iC4 uXBxSktifuEyD/z8WcmD8iRw9NH544eQqX0S7IoJmJriVIG8Ck2sfavjH PeDbsTEeruxRrFIn85gV1v1cDi6aCTGGGWe0s5fLKKSq6cM6JIKj63Qmr LqAPx5fSY5AtWnqqQ9785lo+WWd255Q4G7opm7dzdIbtC1/JtP+3ijACG Q==; IronPort-SDR: /ZBMnvOJR5JlwnWQQ9PL4Gln/6pypMkpQxruMRVRT+W7nAkf3jIDgPgei5RIJQV7WflvzN6O14 3IQ047wHrfpP2nBDDwE43g0MCbToEp45yJVByJhBH4zAulIhLd1O6SyhFjXC2VwvLj+eo+xKw1 NbppVuHl/ZHc8SSgPKAha5JSdGHt0O+IjweZciymGGCwFWYxnMAzt/ZCxz1NrswI/X9uWhqUTx oJwdjg3JT9yWVeTGrP1YIUn807MJDWcQre1Ik5hRWGnr/R5PkITQMlVxT9xMKDjwiqkzAWVCtb kUo= X-IronPort-AV: E=Sophos;i="5.78,416,1599494400"; d="scan'208";a="159494616" Received: from h199-255-45-15.hgst.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 13 Dec 2020 21:51:25 +0800 IronPort-SDR: k1h7mi6MDTeKA9HQsg/P0lJau8ueBzOhAX/M+79WDlffG/DCft+R3ip4Hlc/ettxUT02YR2zgp 0oVUH7QHb13DlLHkL0TTcW97wZmvCHUosRa56CwiBszBkNfnZ8jmoq5IOJFb73h1jNMylRq3II 9mLsN5/6DCNYoBIUzHW4YfXNUVq2yZn7gkySoFS7e2zmbhJrNUhSgE2GsN4gvN1AYroJ2L1q4g ge2VZyjFsuQ5YBdibCWZ0ELB43LIV4Cieco5ohKY6NCRlqi7v6vKRYsQVF3y56h50QvT0v6Q4Q eosGuqehiOpHakZAPC5+ZH/d Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Dec 2020 05:35:10 -0800 IronPort-SDR: cnx2i2INf7rCAeZ3gRVqQDnghQDFS5YLOWXS9TOpQcKvylpvV8Xiqo4hG94JjeT96CCviVO6Az Mor35TtgLQVDdNj6NyKwNG7gC/4hhadp7ZIgDh4I0b+SHuCPoqxGAYWO0DkWqk9ml8OjxuusYY C3ewyCTHhllC/Jx/gZ1qFpNO6pas8xMlig9hJBt8poh891D7T0pcM1pZoqLlvSjrE2oMBsY+Yg TsFBCC6OHRHkhqByk1TUamY3ODhumbX1HOrxZxIDDsj48gf0UggTOZK/Zbz8MU96k9ClD+ZhmB 4uA= WDCIronportException: Internal Received: from phd004806.ad.shared (HELO twashi.fujisawa.hgst.com) ([10.84.71.197]) by uls-op-cesaip01.wdc.com with ESMTP; 13 Dec 2020 05:51:23 -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 v10 12/23] dt-binding: mfd: Document canaan, k210-sysctl bindings Date: Sun, 13 Dec 2020 22:50:45 +0900 Message-Id: <20201213135056.24446-13-damien.lemoal@wdc.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201213135056.24446-1-damien.lemoal@wdc.com> References: <20201213135056.24446-1-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 Reviewed-by: Rob Herring --- .../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>; + }; + };