From patchwork Thu Oct 28 14:00:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Etienne Carriere X-Patchwork-Id: 12590285 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 679BDC433EF for ; Thu, 28 Oct 2021 14:01:45 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 31BBB61056 for ; Thu, 28 Oct 2021 14:01:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 31BBB61056 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id: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:In-Reply-To:References: List-Owner; bh=8+5ns1vo4ZPlXsLqDdsG7sOff2gYSDTJCSFZqOOfBKg=; b=xp9kCI/Riixk4T HC5WgZznBZ6kgdoyfk1EXFOAWT+Os6cE1Xlvf7zvLBMGAVLv2DDQYRZCw3tAuHpPfiRw+g7J+Uk7i JrQa+Dl6hK2U/KdSnP037qRzuKZqlXYEX9JpWImbdk3aGy8jXswACHLEAo+xosdaq0fN/+v53p3Ig cCYK8oM9xVJTIJW9U6q+v9ginpAZTcbmoAtXzo2ehA3kULpZM8BBx+1LnyELPGW4unLc6Ou3RAv7j bKVqSgLzL03sUZ8IS1CwFd2wxuBHLDHwPO1ugo5C3QAkZyjN9sPUPuhEeWLWlq/26LcqTWwSgXJ8l ez+SfJ90CFSuuwmFr5vQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mg5x6-0082am-TY; Thu, 28 Oct 2021 14:00:21 +0000 Received: from mail-wm1-x32a.google.com ([2a00:1450:4864:20::32a]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mg5x2-0082Yi-MO for linux-arm-kernel@lists.infradead.org; Thu, 28 Oct 2021 14:00:18 +0000 Received: by mail-wm1-x32a.google.com with SMTP id m42so5904714wms.2 for ; Thu, 28 Oct 2021 07:00:15 -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=hwlpnlC96Iq4yd/qa1MHN9OndDMbSpFJ5nBOkRygT0Y=; b=v7pv9yFdFEbIlIWFU/23dm3MCFkl8dcEEeRSQjwKDYEhnFoP9/1S063RARz44GmDaM 40KEujEAQO6COS4Rz8mlTArmgDPA3OhB1K5E61MyOzEpzqxBBgVfniWqSoUyYA18VHo3 pAuhcAVtaJidD75t441nDkL5XG1fxRqhrXKZ1U21rNXagDk/redDafmM7oAyl4xBCuDF Lm4VOHYbzxVhgDpWe/jhXEsDLhlWj46LXveTHSjJVfHUv5vFbk1vE3V5zUhcF+BH9fdh HFefdkS0jhlXyv2KIiqYy3+/j8UiFC//gGtLbwLyP/hradZcqaftkZzGLhyz6b5CzywF XDtA== 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=hwlpnlC96Iq4yd/qa1MHN9OndDMbSpFJ5nBOkRygT0Y=; b=A9JmEXKpkqus/P6Yt21z+XIAUCmpskUOrzmu3Q5KlAYfpLrRbu1dekv9SZ7IJClgja FX+mGz8aLM18IYFYdu8BxGsqkfpauk8WtCpcfcd1mCZUefaFgLpoJO79SyGzSzF7jApC kb3wbwRbk7nT5X69D8sJ2qtV7tGqrur6rZKvlBMtcmraR82rNJvIfiwYyD5tWsXmkupf 87cjJ6ng65ziSJEdXMZ22MdlxQzCaNqhfeORu0Y/rNCwHxe8R0fA1PMiVvLX7Hxsx18C PcOUKBenBFln4jr6n9QCyzObaYmJvFd3PR9o/o+oUG8fTF7pT0HvjjoLjwxkiRYTPXiu RMJA== X-Gm-Message-State: AOAM530lzBa5wdej+8UX/n9TNUzwgGPKaxDSaWz/bOIJPR3hbxwHkZ8D w4wEb4WZ445V8WXBXDrQAOn8Yw== X-Google-Smtp-Source: ABdhPJwJ+02NUgidXxf8pb1dMVqiMmu/FPmh0/EQ6EzWDLAPhjrT5qeOq6Kx6tIoctfu2ZLbpqUuIg== X-Received: by 2002:a05:600c:4f96:: with SMTP id n22mr4773500wmq.168.1635429614704; Thu, 28 Oct 2021 07:00:14 -0700 (PDT) Received: from lmecxl0524.lme.st.com ([80.215.4.29]) by smtp.gmail.com with ESMTPSA id s3sm6205693wmh.30.2021.10.28.07.00.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Oct 2021 07:00:14 -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 v8 1/2] dt-bindings: arm: Add OP-TEE transport for SCMI Date: Thu, 28 Oct 2021 16:00:08 +0200 Message-Id: <20211028140009.23331-1-etienne.carriere@linaro.org> X-Mailer: git-send-email 2.17.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211028_070016_793181_08641938 X-CRM114-Status: GOOD ( 11.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 Reviewed-by: Cristian Marussi Reviewed-by: Rob Herring --- Changes since v6: - Remove maxItems from linaro,optee-channel-id description No change since v5 Changes since v4: - Fix sram node name in DTS example: s/-shm-/-sram-/ Changes since v3: - Add description for linaro,optee-channel-id in patternProperties specifying protocol can optionaly define a dedicated channel id. - Fix DTS example (duplicated phandles issue, subnodes ordering) - Fix typo in DTS example and description comments. 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 | 65 +++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 5c4c6782e052..eae15df36eef 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 specifier required when using OP-TEE transport. + protocol@11: type: object properties: @@ -195,6 +203,12 @@ patternProperties: minItems: 1 maxItems: 2 + linaro,optee-channel-id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Channel specifier required when using OP-TEE transport and + protocol has a dedicated communication channel. + required: - reg @@ -226,6 +240,16 @@ else: - arm,smc-id - shmem + else: + if: + properties: + compatible: + contains: + const: linaro,scmi-optee + then: + required: + - linaro,optee-channel-id + examples: - | firmware { @@ -340,7 +364,48 @@ examples: reg = <0x11>; #power-domain-cells = <1>; }; + }; + }; + + - | + firmware { + scmi { + compatible = "linaro,scmi-optee"; + linaro,optee-channel-id = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + scmi_dvfs1: protocol@13 { + reg = <0x13>; + linaro,optee-channel-id = <1>; + shmem = <&cpu_optee_lpri0>; + #clock-cells = <1>; + }; + + scmi_clk0: protocol@14 { + reg = <0x14>; + #clock-cells = <1>; + }; + }; + }; + soc { + #address-cells = <2>; + #size-cells = <2>; + + sram@51000000 { + compatible = "mmio-sram"; + reg = <0x0 0x51000000 0x0 0x10000>; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x0 0x51000000 0x10000>; + + cpu_optee_lpri0: optee-sram-section@0 { + compatible = "arm,scmi-shmem"; + reg = <0x0 0x80>; + }; }; };