From patchwork Wed May 15 23:09:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elliot Berman X-Patchwork-Id: 13665587 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 690B2C25B78 for ; Wed, 15 May 2024 23:10:48 +0000 (UTC) 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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:CC:To:In-Reply-To:References:Message-ID :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=lILk7ikN2Z1OKhUpr4eXi0vD7x9Cb4QBymRK6fKJCwA=; b=n7964qoe3EDqzJ DiyRKCU4zHKcjEFu7pHUDccKZQlWJCakCAFo3qo7paFsPhbWDuNJu9D7u5dOxTi1rqbKiu9YT8M6d Bsez+t/iplHttH7cs12zOZW4AtHwcliHFYECSyTWBOBBL2axCI8lbnuV/InqGM2tU3xy68H/yowbB QIJnNfApUOJx28q+gypbZF0BalsQmpIsB3L0LWOoKIYV8eMi2zAaTXkN1Lt6cq/OZ88xbCI6JtujP 6G7v/phf4fRe/TUn/6tCCH2b82VNWBIuwP7694/mjvUoEx9gwLAvXu4WCj7wy+/L4KG0DtBUXa8Fq eFq2WvbVpJpKuLWq6hng==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s7Nlc-0000000374l-3oMr; Wed, 15 May 2024 23:10:37 +0000 Received: from mx0b-0031df01.pphosted.com ([205.220.180.131]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1s7NlX-0000000372d-2pPB for linux-arm-kernel@lists.infradead.org; Wed, 15 May 2024 23:10:33 +0000 Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 44FMs4Tm006229; Wed, 15 May 2024 23:10:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:date:subject:mime-version:content-type :content-transfer-encoding:message-id:references:in-reply-to:to :cc; s=qcppdkim1; bh=yKs5j0Cr0dh3HgK94KRz2k2K+I5xpRwU42X82p84/jA =; b=l9nQ279ay3VyvM1hL04gmCfY+ktZutoikqtF+mPXWduG8iCmEF6R5ZIza/D X9bgXiGBEOedQJ649R9tLXDdbm2V8ogkGQBbsP+of2cdLDRO0Nk2RD5xAvbq0jta /P6bt8M0l8KbTC+XQRFz6EUbfoTwNUso+JwNx5lJ2qv4igFVTrO8Nevhipr1Y/h8 Jtve8Ec94Lzu2QTB+o1bNf9LwOwXfGIPtGwrtxbCqbxSak1Bl9Viut8k9z5HfKNU 8Ky8bWGWw5z6s1vB6hCvwfKiPuZkOyZ5eMHwh5tpUXudkvBi79KDBpJfv7xaRm/z cTg18BTukvhWEKJrAXLfbEDmErw== Received: from nasanppmta04.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3y42kvvt39-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 May 2024 23:10:25 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 44FNA6N3030147 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 15 May 2024 23:10:06 GMT Received: from hu-eberman-lv.qualcomm.com (10.49.16.6) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 15 May 2024 16:10:06 -0700 From: Elliot Berman Date: Wed, 15 May 2024 16:09:45 -0700 Subject: [PATCH v3 2/4] dt-bindings: arm: Document reboot mode magic MIME-Version: 1.0 Message-ID: <20240515-arm-psci-system_reset2-vendor-reboots-v3-2-16dd4f9c0ab4@quicinc.com> References: <20240515-arm-psci-system_reset2-vendor-reboots-v3-0-16dd4f9c0ab4@quicinc.com> In-Reply-To: <20240515-arm-psci-system_reset2-vendor-reboots-v3-0-16dd4f9c0ab4@quicinc.com> To: Bjorn Andersson , Konrad Dybcio , Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Andy Yan , Lorenzo Pieralisi , "Mark Rutland" , Bartosz Golaszewski CC: Satya Durga Srinivasu Prabhala , Melody Olvera , Shivendra Pratap , , , , Florian Fainelli , , , Elliot Berman X-Mailer: b4 0.13.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: nyU1o3LrxiZMp2jz_RsTVYip4l9x17VH X-Proofpoint-ORIG-GUID: nyU1o3LrxiZMp2jz_RsTVYip4l9x17VH X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-15_14,2024-05-15_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 mlxlogscore=999 phishscore=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 spamscore=0 adultscore=0 mlxscore=0 impostorscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405010000 definitions=main-2405150164 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240515_161031_933642_13D602DE X-CRM114-Status: GOOD ( 14.40 ) 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 Add bindings to describe vendor-specific reboot modes. Values here correspond to valid parameters to vendor-specific reset types in PSCI SYSTEM_RESET2 call. Signed-off-by: Elliot Berman --- Documentation/devicetree/bindings/arm/psci.yaml | 43 +++++++++++++++++++++++-- 1 file changed, 41 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml index cbb012e217ab..47b5bbe540ce 100644 --- a/Documentation/devicetree/bindings/arm/psci.yaml +++ b/Documentation/devicetree/bindings/arm/psci.yaml @@ -137,8 +137,34 @@ allOf: required: - cpu_off - cpu_on - -additionalProperties: false + - if: + properties: + compatible: + contains: + const: arm,psci-1.0 + then: + properties: + reset-types: + type: object + $ref: /schemas/power/reset/reboot-mode.yaml# + properties: + # "mode-normal" is just SYSTEM_RESET + mode-normal: false + patternProperties: + "^mode-.*$": + items: + maxItems: 2 + description: | + Describes a vendor-specific reset type. The string after "mode-" + maps a reboot mode to the parameters in the PSCI SYSTEM_RESET2 call. + + Parameters are named mode-xxx = , where xxx + is the name of the magic reboot mode, type is the lower 31 bits + of the reset_type, and, optionally, the cookie value. If the cookie + is not provided, it is defaulted to zero. + The 31st bit (vendor-resets) will be implicitly set by the driver. + +unevaluatedProperties: false examples: - |+ @@ -261,4 +287,17 @@ examples: domain-idle-states = <&CLUSTER_RET>, <&CLUSTER_PWRDN>; }; }; + + - |+ + + // Case 5: SYSTEM_RESET2 vendor resets + psci { + compatible = "arm,psci-1.0"; + method = "smc"; + + reset-types { + mode-edl = <0>; + mode-bootloader = <1 2>; + }; + }; ...