From patchwork Fri Jan 27 18:46:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maximilian Luz X-Patchwork-Id: 648079 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82FF2C61DB3 for ; Fri, 27 Jan 2023 18:47:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235152AbjA0SrQ (ORCPT ); Fri, 27 Jan 2023 13:47:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234759AbjA0SrI (ORCPT ); Fri, 27 Jan 2023 13:47:08 -0500 Received: from mail-wm1-x32f.google.com (mail-wm1-x32f.google.com [IPv6:2a00:1450:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5008761D7; Fri, 27 Jan 2023 10:47:05 -0800 (PST) Received: by mail-wm1-x32f.google.com with SMTP id f19-20020a1c6a13000000b003db0ef4dedcso6006341wmc.4; Fri, 27 Jan 2023 10:47:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; 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=D+TzU0hDAWzqzIsf+fugrbPVmb0cJvXw5r9uGPAwlts=; b=EtBJMYUGdEM4o0MSLMJ2W0nPXQgGGTKm/53jvmkHg12xA+wj7HrBDu3sdD9+mznBpa QVQxOMX4XfeNqP3iOJMDMuiatjh4Um2RrPYuvLUeuAKGQjUPBJOS7QGU/gSWSVmMSdO1 1mOrnV6oPLMb895nRYAZjBozCI9jm7EsXOZbx0KRabF2kez6DwjzXxzXmoadaRR6bi9h J1hy+IktAPPlrGbg4l0OBk/6ykNXLxQhX5+SugpfHJ6wmc1eJUgeBfeP6uyjW/qdWtoT /Hs+GLN4QEfG7QbXtiz+AZTav9kXz7dWeg0u8wnxxi4OQbceh3A4s0t9+fL2LzseuCAN OsKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=D+TzU0hDAWzqzIsf+fugrbPVmb0cJvXw5r9uGPAwlts=; b=i9XVjUHafdWFhCCrZZgpAfAFK/DajVYtzivgxlUb8f0/Zyf4x+4feRe4pImKPzDyfD mBi2zFQBFmMLjOG5xp9lGLufHdNTXq7BkcYsHNZEZ/qXTUk1fA6ctuadH1glhebFYGYV tgrKTeqkaLeN8hbdbPhrYexUSV70xsOMtIAOHLSet+AVs6EU1q2vSHW5qs4vjtvEI88s s0PKCKqHjJlPVlm62uA/0oiPzxfu6lENaC7OcxT6oyY69LWQ4niOU8rOjMF2c3W0IxXd tWQXdavbYrzJrtWQsNidxQVrLkobwG2M3E1RwgqHw7SRRLN+j9LYTfKkUZGq/6+cR2Bo o1qw== X-Gm-Message-State: AO0yUKV4TE3V5pa323Nj04/ImAtu3Kn//HiNZnDGqlt3p1o0XW8IMVS/ LaSmZgcne4hSduiK4Kzz/S4= X-Google-Smtp-Source: AK7set+cunZVd3+7yKUcqE5BcbG92TFIUXyQOkmtyI6EsJa3gcsqHrbWgdg0NO9+By0Fl6+ovtjYvw== X-Received: by 2002:a05:600c:198f:b0:3dc:31f0:3a60 with SMTP id t15-20020a05600c198f00b003dc31f03a60mr4411291wmq.32.1674845224333; Fri, 27 Jan 2023 10:47:04 -0800 (PST) Received: from xws.localdomain (pd9ea339c.dip0.t-ipconnect.de. [217.234.51.156]) by smtp.gmail.com with ESMTPSA id g12-20020a05600c310c00b003db012d49b7sm16234208wmo.2.2023.01.27.10.47.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Jan 2023 10:47:03 -0800 (PST) From: Maximilian Luz To: Bjorn Andersson Cc: Maximilian Luz , Andy Gross , Konrad Dybcio , Ard Biesheuvel , Rob Herring , Krzysztof Kozlowski , Johan Hovold , Sudeep Holla , Ilias Apalodimas , Srinivas Kandagatla , Sumit Garg , Steev Klimaszewski , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v2 3/4] dt-bindings: firmware: Add Qualcomm QSEECOM interface Date: Fri, 27 Jan 2023 19:46:49 +0100 Message-Id: <20230127184650.756795-4-luzmaximilian@gmail.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230127184650.756795-1-luzmaximilian@gmail.com> References: <20230127184650.756795-1-luzmaximilian@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add bindings for the Qualcomm Secure Execution Environment interface (QSEECOM). Signed-off-by: Maximilian Luz --- Changes in v2: - Replaces uefisecapp bindings. - Fix various dt-checker complaints. --- .../bindings/firmware/qcom,qseecom.yaml | 49 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/firmware/qcom,qseecom.yaml diff --git a/Documentation/devicetree/bindings/firmware/qcom,qseecom.yaml b/Documentation/devicetree/bindings/firmware/qcom,qseecom.yaml new file mode 100644 index 000000000000..540a604f81bc --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/qcom,qseecom.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/firmware/qcom,qseecom.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Secure Execution Environment Communication Interface + +maintainers: + - Maximilian Luz + +description: | + QSEECOM provides an interface to Qualcomm's Secure Execution Environment + (SEE) running in the Trust Zone via SCM calls. In particular, it allows + communication with secure applications running therein. + + Applications running in this environment can, for example, include + 'uefisecapp', which is required for accessing UEFI variables on certain + systems as these cannot be accessed directly. + +properties: + compatible: + items: + - enum: + - qcom,qseecom-sc8280xp + - const: qcom,qseecom + + qcom,scm: + $ref: '/schemas/types.yaml#/definitions/phandle' + description: + A phandle pointing to the QCOM SCM device (see ./qcom,scm.yaml). + +required: + - compatible + - qcom,scm + +additionalProperties: false + +examples: + - | + firmware { + scm { + compatible = "qcom,scm-sc8280xp", "qcom,scm"; + }; + qseecom { + compatible = "qcom,qseecom-sc8280xp", "qcom,qseecom"; + qcom,scm = <&scm>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 846d6c927840..5493bcc5792c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -17391,6 +17391,7 @@ QUALCOMM SECURE EXECUTION ENVIRONMENT COMMUNICATION DRIVER M: Maximilian Luz L: linux-arm-msm@vger.kernel.org S: Maintained +F: Documentation/devicetree/bindings/firmware/qcom,qseecom.yaml F: drivers/firmware/qcom_qseecom.c F: include/linux/qcom_qseecom.h