From patchwork Tue Jul 30 14:47:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Marussi X-Patchwork-Id: 13747505 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 150D6C3DA49 for ; Tue, 30 Jul 2024 14:50:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Xd+lzEcyhXuHUXnxfsJi1WfPIg4aKL45JStpDB0imsk=; b=yDonZUsT6H07RJl2rfeNm3Dr1J P1IopyVem6GTkU9ZLx2PS4t1cAe12Lm1nNBmh76WPkdw6DmDXYyPrL1UTTwBS0I9UzBFIj1A5aB/n abxD5DM4CgQ8A/pWRAoKE0cGw0Aj347rBdUHxyuX9TywZPmeXJP694ZnxGiJdPa83ANzGmO0j5XuH seLG12SND3DaHDsYjvtjxOqdCbPGE6qxPUfXAqvua0F/NEkqnLLXi13JH+sn5IU1BcC/SnQNT+Wx5 0vC2bNCAmEBmAOQTvU+q+ckMX2L+tLk+sC6M+4Sz1w7vlGLvtQEi8wS2+5+wEFnWY404gt/Hy7yOv Hl6deY3w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sYoB9-0000000FWxk-0g27; Tue, 30 Jul 2024 14:50:19 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sYo90-0000000FWDB-2jBJ for linux-arm-kernel@lists.infradead.org; Tue, 30 Jul 2024 14:48:07 +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 CA7BD106F; Tue, 30 Jul 2024 07:48:31 -0700 (PDT) Received: from pluto.guestnet.cambridge.arm.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6B0783F766; Tue, 30 Jul 2024 07:48:03 -0700 (PDT) From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, arm-scmi@vger.kernel.org, devicetree@vger.kernel.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, f.fainelli@gmail.com, vincent.guittot@linaro.org, etienne.carriere@st.com, peng.fan@oss.nxp.com, michal.simek@amd.com, quic_sibis@quicinc.com, quic_nkela@quicinc.com, dan.carpenter@linaro.org, souvik.chakravarty@arm.com, robh@kernel.org, krzk+dt@kernel.org, Cristian Marussi Subject: [PATCH v1 4/6] dt-bindings: firmware: arm,scmi: Introduce more transport properties Date: Tue, 30 Jul 2024 15:47:05 +0100 Message-ID: <20240730144707.1647025-5-cristian.marussi@arm.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240730144707.1647025-1-cristian.marussi@arm.com> References: <20240730144707.1647025-1-cristian.marussi@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240730_074806_750239_41CDCACE X-CRM114-Status: UNSURE ( 7.76 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Depending on hardware and firmware design choices different platforms can end-up having different requirements around transport features. Introduce max-msg-size and max-msg properties to describe platform specific transport constraints. Signed-off-by: Cristian Marussi --- .../devicetree/bindings/firmware/arm,scmi.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml index 7c9fa07e2ff2..998fde321d82 100644 --- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml +++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml @@ -128,6 +128,21 @@ properties: be a non-zero value if set. minimum: 1 + max-msg-size: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + An optional value, expressed in bytes, representing the transport maximum + message size. The value should at least allow for the 4-bytes SCMI message + header to be transmitted if set. + minimum: 4 + + max-msg: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + An optional value representing the transport maximum number of concurrent + in-flight messages. The value should be a non-zero value if set. + minimum: 1 + arm,smc-id: $ref: /schemas/types.yaml#/definitions/uint32 description: