From patchwork Mon Oct 18 11:40:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Etienne Carriere X-Patchwork-Id: 1542547 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=iCURnxjS; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4HXw1m4ygrz9sS8 for ; Mon, 18 Oct 2021 22:41:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229569AbhJRLnZ (ORCPT ); Mon, 18 Oct 2021 07:43:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231220AbhJRLnZ (ORCPT ); Mon, 18 Oct 2021 07:43:25 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7CD2AC061714 for ; Mon, 18 Oct 2021 04:41:14 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id u8-20020a05600c440800b0030d90076dabso5961364wmn.1 for ; Mon, 18 Oct 2021 04:41:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=zPIojQ5RzeuaqadWrZEbZpzRMQdeFPgWbBMit52fPcI=; b=iCURnxjSOhHzfeFZMPq+Dv1DY6v6VIS3+6ETqypb9yCgscHKOnVOrAjPtOXGulwZZ2 yquC/Z7szQ0Pbn8pcuG2VwlscpvoQFBAow+6UllYlmDBMG6/iFxXQ9lFYt1MyLAjWlq6 BUmpKU3pHW5R0lbJNFXHAruQLO4gMIHiIgLqbvwSCbf7ciqBk4RAgSUdaw18GYyk1J1m NDyg3RV8Pr4iQu7EGa6rhrQ8BeuXTHex8Sr1n+EmVC9UHBICEYG4gYK1M4phkDGV8ci4 Sx6dx/uoqydpfWYpXElfxKfXAfrHNTWx4KjMxNiKLULnoYk+h1WKbi0zjFNbQXDJxo3H bzvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=zPIojQ5RzeuaqadWrZEbZpzRMQdeFPgWbBMit52fPcI=; b=mbM8PHaThlCl1oz2bUpORtcdyDYjHlfCB1G1p//ywKuGWdhIDiQxARPMw6/6OAq1pg 4bvn+Wc9XHty1yx0cCEXnq1oS7GS958iDnAh9LVfgQCwaHwLL39fc2W8EyJ0r6LNGteH jLQvgTUXZ+Cs+kFYHVtUMPajXyQX2kPNSOvyGc4KaH/g5fu60YZin9oWtGB52teqdNF/ eTgwu1b5IN6eyNGzhdiwxts2E1gFqicUMEzflrWvusnh4PC/LlnHGSH5yKkDnCy6L/Y6 jYdH6xT93i76SmA65c+xIBzuIwPUX7N1caEGgufpWg3j5EmUe6nAUOK4+xMcHNdZxrQE n/MA== X-Gm-Message-State: AOAM532bbKAuIK8K2PMdMcFYCJu8++N0bENYJkg87t7j+zOyRpbeSaDf ZrlgDiRAAxXbru1cohKlA67l4Q== X-Google-Smtp-Source: ABdhPJzmo20Ty+p4ZX0gCo3egFMPZJcbNMmW5ipqMgSzq8bz3svkpuRRIWcVRhAEXuO93/GkyzaueQ== X-Received: by 2002:a05:600c:1d1f:: with SMTP id l31mr42782729wms.44.1634557272930; Mon, 18 Oct 2021 04:41:12 -0700 (PDT) Received: from lmecxl0524.lme.st.com ([2a04:cec0:1042:58b3:f8bd:7b81:c866:9456]) by smtp.gmail.com with ESMTPSA id p18sm13595588wrt.54.2021.10.18.04.41.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Oct 2021 04:41:12 -0700 (PDT) From: Etienne Carriere To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Sudeep Holla , Cristian Marussi , Vincent Guittot , Etienne Carriere , devicetree@vger.kernel.org, Rob Herring Subject: [PATCH v3 1/2] dt-bindings: arm: Add OP-TEE transport for SCMI Date: Mon, 18 Oct 2021 13:40:45 +0200 Message-Id: <20211018114046.25571-1-etienne.carriere@linaro.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Introduce compatible "linaro,scmi-optee" for SCMI transport channel based on an OP-TEE service invocation. The compatible mandates a channel ID defined with property "linaro,optee-channel-id". Cc: devicetree@vger.kernel.org Cc: Rob Herring Signed-off-by: Etienne Carriere --- Changes since v2: - Define mandatory property linaro,optee-channel-id - Rebased on yaml description file Changes since v1: - Removed modification regarding mboxes property description. --- .../bindings/firmware/arm,scmi.yaml | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 5c4c6782e052..12154ecc081b 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -38,6 +38,9 @@ properties: The virtio transport only supports a single device. items: - const: arm,scmi-virtio + - description: SCMI compliant firmware with OP-TEE transport + items: + - const: linaro,scmi-optee interrupts: description: @@ -83,6 +86,11 @@ properties: description: SMC id required when using smc or hvc transports + linaro,optee-channel-id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Channel id required when using OP-TEE transports + protocol@11: type: object properties: @@ -195,6 +203,9 @@ patternProperties: minItems: 1 maxItems: 2 + linaro,optee-channel-id: + maxItems: 1 + required: - reg @@ -226,6 +237,16 @@ else: - arm,smc-id - shmem + else: + if: + properties: + compatible: + contains: + const: linaro,scmi-optee + then: + required: + - linaro,optee-channel-id + examples: - | firmware { @@ -340,7 +361,30 @@ examples: reg = <0x11>; #power-domain-cells = <1>; }; + }; + }; + + - | + firmware { + scmi { + compatible = "linaro,scmi-optee"; + linaro,optee-channel = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + scmi_clk: protocol@14 { + reg = <0x14>; + #clock-cells = <1>; + }; + + scmi_dvfs: protocol@13 { + reg = <0x13>; + #clock-cells = <1>; + linaro,optee-channel = <1>; + shmem = <&cpu_scp_hpri0>; + }; }; };