From patchwork Fri Aug 2 21:35:39 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Detlev Casanova X-Patchwork-Id: 13752017 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 EE48AC3DA4A for ; Fri, 2 Aug 2024 21:41:01 +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: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=tSa816RptS9gd0/CPa4yypm5d3ItieJbqZa0pNyEC6k=; b=uTrDG7RkMgRfCB 7hXx3QwNliA1ItaHyCi7fM6URC3vwRSBx4kWOFagKAb2Plr4WLLvagb18aAjARBORFToEhyug0q/I H1uWz8xc2M8iU5PIG+kzg1+1YY7/142rIfk4J6KKir9PtSzUQ3/kYR9BxTkoDxoqCplH90rB8N9z3 vUpYOC7qV2bcSP3gFfBO0CnTPW4pn9L2a/tPViRcahMU3lCDL0TpNcqYmJF8tKQcCRG+3HxlTAto6 5iT488xIutuTwRDVFRbpRSUF9EzwCB8jO7JPHh3aOxgymausGfDl/Il2sUnfCb3yVSOdVKtcIuL1X 4VYixoaFX+/Duwswg3vA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sa01C-0000000A8yg-1Jod; Fri, 02 Aug 2024 21:40:58 +0000 Received: from madrid.collaboradmins.com ([46.235.227.194]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sa00A-0000000A8h3-1Wi1; Fri, 02 Aug 2024 21:39:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1722634792; bh=8kARDOUlK4s9GI+774yHjLROrqqrO3C+7cC+cdMj2NQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mTSg/y5jI41lRHf3B9hbeIfBbNo3wITlfTKdXqnEbUIyvSSLIddX9KtDmZJN+k0X6 cA+0gnuOouSIa5zv1czj4lcawGTuop7QQGbTuMKbASt4DyEsFYlkY7VioKZkNoL7ax yxhArH8QodEX1MLGzl1JuZO/6o1Kdi0Brmqq3orZUGknk78xroZBtMQsPpLUuOSPQD v8BQGTf6OlR0MEUDL3eFd0KUeWWeWNMmcDo+GprX/DaUxWnJCwKLCullJLCK5hUzfO aYS+WE7t/0nF+wCtD/YC0iOn/rIM6dFO0eV+FSz0btiC0Hf16OsYsjg/S3Gv4RZjgo QPvMJiLJyxN2A== Received: from trenzalore.hitronhub.home (cola.collaboradmins.com [195.201.22.229]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: detlev) by madrid.collaboradmins.com (Postfix) with ESMTPSA id 65AEE378221A; Fri, 2 Aug 2024 21:39:50 +0000 (UTC) From: Detlev Casanova To: linux-kernel@vger.kernel.org Cc: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Elaine Zhang , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, kernel@collabora.com, Detlev Casanova Subject: [PATCH v2 1/3] dt-bindings: clock: add rk3576 cru bindings Date: Fri, 2 Aug 2024 17:35:39 -0400 Message-ID: <20240802214053.433493-2-detlev.casanova@collabora.com> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240802214053.433493-1-detlev.casanova@collabora.com> References: <20240802214053.433493-1-detlev.casanova@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240802_143954_551357_A0E0859B X-CRM114-Status: GOOD ( 15.02 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Document the device tree bindings of the rockchip rk3576 SoC clock and reset unit. Signed-off-by: Detlev Casanova --- .../bindings/clock/rockchip,rk3576-cru.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/rockchip,rk3576-cru.yaml diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3576-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3576-cru.yaml new file mode 100644 index 0000000000000..929eb6183bf18 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/rockchip,rk3576-cru.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/rockchip,rk3576-cru.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip rk3576 Family Clock and Reset Control Module + +maintainers: + - Elaine Zhang + - Heiko Stuebner + +description: | + The RK3576 clock controller generates the clock and also implements a reset + controller for SoC peripherals. For example it provides SCLK_UART2 and + PCLK_UART2, as well as SRST_P_UART2 and SRST_S_UART2 for the second UART + module. + Each clock is assigned an identifier and client nodes can use this identifier + to specify the clock which they consume. All available clock and reset IDs + are defined as preprocessor macros in dt-binding headers. + +properties: + compatible: + enum: + - rockchip,rk3576-cru + + reg: + maxItems: 1 + + "#clock-cells": + const: 1 + + "#reset-cells": + const: 1 + + clocks: + minItems: 2 + maxItems: 2 + + clock-names: + items: + - const: xin24m + - const: xin32k + + assigned-clocks: true + + assigned-clock-rates: true + + assigned-clock-parents: true + + rockchip,grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: > + phandle to the syscon managing the "general register files". It is used + for GRF muxes, if missing any muxes present in the GRF will not be + available. + +required: + - compatible + - reg + - "#clock-cells" + - "#reset-cells" + +additionalProperties: false + +examples: + - | + cru: clock-controller@27200000 { + compatible = "rockchip,rk3576-cru"; + reg = <0xfd7c0000 0x5c000>; + #clock-cells = <1>; + #reset-cells = <1>; + };