From nobody Fri Dec 19 12:18:12 2025 Received: from mail-ot1-f97.google.com (mail-ot1-f97.google.com [209.85.210.97]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8B122280325 for ; Thu, 9 Oct 2025 21:20:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.97 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760044839; cv=none; b=e3hx8HW7WRuEyjk+Uav86z5ye0zbEWG8bLUtt5O0a3o2C58mKuGO+sBZ5OtaGgenvhanlNwUshCik072j8tfsrjHjiNEcvjBaG+gUA6LVsxQJTbBhT7I2VI6JL9IamXtgAvnfK/Pj3Hr6sM8Wbq3Q9kb5SmIaV+Dp9KEM0Sk+qM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760044839; c=relaxed/simple; bh=9uEjTfrGnmGkJo/3RuxVzKWei7JsAvyM/X7u5LLvmQ0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ZFZcSLJjvf4GeKav59oX6nGhYC1kHKZKnVM9MepSVijcTb9pzmN8J7BKxHzzKomEv4HvU8Wsxr7YJL0NsiDNAU2ZnfgRUKK3bjssd/R8CwZcXyLXvx8hpqp45IWwE1y2DUqebxDUovHDnpDjEpJJZg6iuu3TpzXqYABNekvr7aI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b=Ji/MK2/C; arc=none smtp.client-ip=209.85.210.97 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="Ji/MK2/C" Received: by mail-ot1-f97.google.com with SMTP id 46e09a7af769-7a76561c291so944618a34.1 for ; Thu, 09 Oct 2025 14:20:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760044836; x=1760649636; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=LNCBeBBdkJ6krQ6n6YSc9TV1L3hgIbHKEJb0ek4nU4k=; b=cRrO3i8Y3q5D5tFhUiFqwo/q5mTnYxnGXoJHHC4zpPlp9DHtRX6TZZb5S3jnHNb0eJ 8L9Mz01z9fqgwf7da7SSP2OeSgRYcn69JTFUqqMdYEGfVDfUxA4bS/iXYOjZhlF05cQh gubo1wHHPN7W4KNYHSDgfTM4HPoxXBLqSzMPwUD4b/uNZouQjG+GiyGXSz3WBUuaIPS7 BWhrCfRfv581+RdUQA/2aH4T/mjlGjJlpZxEuSJPNU7myWSaLZz0jes6s3NkGTuPLoTt EcLrEABecQrmxIV45wvUq4syD8WHa5V4dhL+DY1CZHt4iwox50/hve6R1NguurXvi4Au bd7g== X-Forwarded-Encrypted: i=1; AJvYcCWAta8gSClRaEfM5qkLkSwMiB7KQgdszTcncw0jj1ncDQxyOGMODppmnFA3HHnmWjQ9HHMpCGDfJpW/MjQ=@vger.kernel.org X-Gm-Message-State: AOJu0Yw9wv+TCDtLv233m5UUfHkEvri31AeWoddehRS0EuWW4IvTgJvt f0xWNdzPXD2GtFh4VcLKMlo4TjMJ6dibuCs9smPTGxMen5fRFdb48F07pjK/zAZpdOKdNWovZqT NZhesGYDqsjmbLg3nJmPGF3IQ/qFQu93aaLvRTS1sSmGmm6zlp7iczK16qtQQl5bgoIWOzCBKQZ eZr3Kgbnj5UuHZeFWRv4ZUDPaCpQx4XXJ7VUyAeqLTauEN3aCEP/3FtbNQ2N7ICAXR83VwKSOWC oFcMNgAhWt20VoO X-Gm-Gg: ASbGncsnh9WUasew5Ls07WPD4Vl593XolpsZWrRViyWwOEukfb8P3JO9B4J7KdtZE/K HQnYPiQeMUkRLLAtnDpN0LGiqrjmZGe3bhZdbCZGN1KNYzl1teuRoO0pwHkz4aI9alykV1N8hAq wP9GbPgQeUkx/MnUAIxVNaaCqYvdcBFkmc0s6Rcq148oFqMCjUghKxyNBLQ4I1QIHFL/9pAOyPe E7wBqKsHNVTkesy16noDGkHDL3vZkwmTTVb4U98SCPC7QIBp0Eqy1AYvjHR8hmhPkDPr/Lgkk+6 ZsEEaN2Nb2nx5u+ED67fUE70OAlPdDJsu3QgqOS4DVzT3ktgBs/jFYRpYwZdDIbsYCuzAkLBNDI T7bAT/34cFrnEHAq+1l1KTNms8NegfE4V9512N65V0WazLiPDcApg9qopv12Sn9cm/V1tn3maMS 2ZkQ== X-Google-Smtp-Source: AGHT+IGjwsrfUIo4HLhXaBiFnx4XdKvQVZ6Xhi3chy3Y2KfU0IDuA9MVqiFmzxaprQjkAiGZUYfjgF785rRQ X-Received: by 2002:a05:6808:14c4:b0:441:8f74:f23 with SMTP id 5614622812f47-4418f741aafmr1450355b6e.61.1760044836628; Thu, 09 Oct 2025 14:20:36 -0700 (PDT) Received: from smtp-us-east1-p01-i01-si01.dlp.protect.broadcom.com (address-144-49-247-72.dlp.protect.broadcom.com. [144.49.247.72]) by smtp-relay.gmail.com with ESMTPS id 006d021491bc7-650181edb69sm7869eaf.8.2025.10.09.14.20.36 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 Oct 2025 14:20:36 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-qk1-f197.google.com with SMTP id af79cd13be357-82968fe9e8cso524492685a.0 for ; Thu, 09 Oct 2025 14:20:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1760044836; x=1760649636; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=LNCBeBBdkJ6krQ6n6YSc9TV1L3hgIbHKEJb0ek4nU4k=; b=Ji/MK2/C/bXTrPERNnUWrhYhRnb+LTvOh08Ir49ZtaNI2sT7M56FZEANne3cL43daE c+ujDAgkILPxKTGsMGdqP3MblZN/lBLVOb9XNAh8Sxb/aIcFBliDrwIF2ads9hy3NkYX lNtKGlsovgM9qLqEjSjg6nF4Gu/ckE7fVHUqs= X-Forwarded-Encrypted: i=1; AJvYcCWWDNjD9//4S85Zcu+ls9b2vUnMFvFSLzI2spJcNKEZHCYp9Q3fbZTdv3D7z0f1RX87HeSefCLzmEWTTBU=@vger.kernel.org X-Received: by 2002:a05:620a:462c:b0:85d:aabb:47b4 with SMTP id af79cd13be357-8834ff8dd75mr1273447585a.12.1760044835660; Thu, 09 Oct 2025 14:20:35 -0700 (PDT) X-Received: by 2002:a05:620a:462c:b0:85d:aabb:47b4 with SMTP id af79cd13be357-8834ff8dd75mr1273442585a.12.1760044835103; Thu, 09 Oct 2025 14:20:35 -0700 (PDT) Received: from mail.broadcom.net ([192.19.144.250]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8849f9ae428sm274832685a.16.2025.10.09.14.20.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Oct 2025 14:20:34 -0700 (PDT) From: Kamal Dasu To: peng.fan@oss.nxp.com, andersson@kernel.org, baolin.wang@linux.alibaba.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, florian.fainelli@broadcom.com Cc: bcm-kernel-feedback-list@broadcom.com, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Kamal Dasu Subject: [PATCH v3 1/3] dt-bindings: hwlock: Adding brcmstb-hwspinlock support Date: Thu, 9 Oct 2025 17:20:01 -0400 Message-Id: <20251009212003.2714447-2-kamal.dasu@broadcom.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251009212003.2714447-1-kamal.dasu@broadcom.com> References: <20251009212003.2714447-1-kamal.dasu@broadcom.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e Content-Type: text/plain; charset="utf-8" The broadcom settop SoCs have hardware semaphores as part of "sundry" IP block which has other controls that do not belong anywhere else. e.g. pin/mux controls, SoC identification, drive strength, reset controls, and other misc bits are part of this block. Adding brcmstb-hwspinlock bindings which allows the hwspinlock driver to iomap only the 16 hardware semaphore registers that are part of all settop SoCs. Hence the bindings shall use the common "brcm,brcmstb-hwspinlock" compatibility string. Signed-off-by: Kamal Dasu --- .../hwlock/brcm,brcmstb-hwspinlock.yaml | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwlock/brcm,brcmstb-h= wspinlock.yaml diff --git a/Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlo= ck.yaml b/Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlock.= yaml new file mode 100644 index 000000000000..f45399b4fe0b --- /dev/null +++ b/Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlock.yaml @@ -0,0 +1,36 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwlock/brcm,brcmstb-hwspinlock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom settop Hardware Spinlock + +maintainers: + - Kamal Dasu + +properties: + compatible: + const: brcm,brcmstb-hwspinlock + + "#hwlock-cells": + const: 1 + + reg: + maxItems: 1 + +required: + - compatible + - reg + - "#hwlock-cells" + +additionalProperties: false + +examples: + - | + hwlock@8404038 { + compatible =3D "brcm,brcmstb-hwspinlock"; + reg =3D <0x8404038 0x40>; + #hwlock-cells =3D <1>; + }; + --=20 2.34.1