From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DDEDBC4338F for ; Tue, 3 Aug 2021 13:30:50 +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 A602260F0F for ; Tue, 3 Aug 2021 13:30:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A602260F0F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com 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: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=hwbtUn1U3oHS30fVs7Sqy80b3s+hljy8GCkc9zxopIg=; b=bZES03QKKaxnAw 7nlw+0BmPW0YH+PcT71cgrYDIW9rOYdG7CATFOZFTBFfgMxrOowzDYWsdmw0VuoURQxk9RRl5+JJg fKFM5ZnzlTCt3So3E9VctZLK+rj3lQWN40iERkOMvNytntWm+kpRA/btxDFkj4Lw7h7bhmaUvmHFu q+vpJN2+9DYu/73Y191cSxwNbE8iDALarJ/wa5atxWXE77+zejqk3jEJd5oqCRBcwD5kLshXaMJL0 H6HLN3sYMi+3aKyuCkIqT5g/QSK/1Nwn31D3WnG8+oz1JrMHRPolZxX+hIQdQfrJZKmikIsSLAqhw gX12+Pz2eJtD1XhpfpSg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mAuTM-0031Cn-Fm; Tue, 03 Aug 2021 13:28:45 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mAuCv-002taY-5t for linux-arm-kernel@lists.infradead.org; Tue, 03 Aug 2021 13:11:46 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0B9BE143B; Tue, 3 Aug 2021 06:11:44 -0700 (PDT) Received: from e120937-lin.home (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E4D753F70D; Tue, 3 Aug 2021 06:11:40 -0700 (PDT) From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com, f.fainelli@gmail.com, etienne.carriere@linaro.org, vincent.guittot@linaro.org, souvik.chakravarty@arm.com, cristian.marussi@arm.com, igor.skalkin@opensynergy.com, peter.hilber@opensynergy.com, alex.bennee@linaro.org, jean-philippe@linaro.org, mikhail.golubev@opensynergy.com, anton.yakovlev@opensynergy.com, Vasyl.Vavrychuk@opensynergy.com, Andriy.Tryshnivskyy@opensynergy.com Subject: [PATCH v7 13/15] dt-bindings: arm: Add virtio transport for SCMI Date: Tue, 3 Aug 2021 14:10:22 +0100 Message-Id: <20210803131024.40280-14-cristian.marussi@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210803131024.40280-1-cristian.marussi@arm.com> References: <20210803131024.40280-1-cristian.marussi@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210803_061145_366340_7FB6D677 X-CRM114-Status: GOOD ( 11.49 ) 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Igor Skalkin Document the properties for arm,scmi-virtio compatible nodes. The backing virtio SCMI device is described in patch [1]. While doing that, make shmem property required only for pre-existing mailbox and smc transports, since virtio-scmi does not need it. [1] https://lists.oasis-open.org/archives/virtio-comment/202102/msg00018.html Reviewed-by: Rob Herring Signed-off-by: Igor Skalkin [ Peter: Adapted patch for submission to upstream. ] Co-developed-by: Peter Hilber Signed-off-by: Peter Hilber [ Cristian: converted to yaml format, moved shmen required property. ] Signed-off-by: Cristian Marussi --- v3 --> V4 - convertd to YAML - make shmem required only for pre-existing mailbox and smc transport - updated VirtIO specification patch message reference - dropped virtio-mmio SCMI device example since really not pertinent to virtio-scmi dt bindings transport: it is not even referenced in SCMI virtio DT node since they are enumerated by VirtIO subsystem and there could be PCI based SCMI devices anyway. --- Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index cebf6ffe70d5..5c4c6782e052 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -34,6 +34,10 @@ properties: - description: SCMI compliant firmware with ARM SMC/HVC transport items: - const: arm,scmi-smc + - description: SCMI compliant firmware with SCMI Virtio transport. + The virtio transport only supports a single device. + items: + - const: arm,scmi-virtio interrupts: description: @@ -172,6 +176,7 @@ patternProperties: Each sub-node represents a protocol supported. If the platform supports a dedicated communication channel for a particular protocol, then the corresponding transport properties must be present. + The virtio transport does not support a dedicated communication channel. properties: reg: @@ -195,7 +200,6 @@ patternProperties: required: - compatible - - shmem if: properties: @@ -209,6 +213,7 @@ then: required: - mboxes + - shmem else: if: @@ -219,6 +224,7 @@ else: then: required: - arm,smc-id + - shmem examples: - | -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel