From nobody Sat Jul 25 03:21:06 2026 Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [80.241.56.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1375143F08E; Mon, 20 Jul 2026 01:55:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784512518; cv=none; b=FW97Ld1gmqaV5OZRaPBWvGqokLZnytmukFb02KE8LerHzpU8CGzws/91iSI1HHc5q1ivqB8r3k4eYN/CYwSamuFTuZAyKwapxfmcoGWZRdXT+oPIymEeyRmSqMymRNT5csqoN21do2QvZmlsrkYSHfCBUaCsq2XzUej9/TxSC+M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784512518; c=relaxed/simple; bh=Xb29uNU2XZsPhe9bg1OWDVHOrSr1L98u98F74cgEUwQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=BIBW35Qft9It9Vre+bQNW+OJF/a4IDCc03G7U21bW0aHEdMB+CEz1zd1QZNh0wwO/ng9ASjLethb2sut3cPCK9/xMCmvF09tqs5k3dcRdUzSFm6ix4wUGJ9r/d8NIWvxwU6Ama6GXUEM0K7haE4T7YT/BGWOCUSTRsxYo1g5Q9Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=apjqbCa0; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=hOGeZAZk; arc=none smtp.client-ip=80.241.56.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="apjqbCa0"; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="hOGeZAZk" Received: from smtp202.mailbox.org (smtp202.mailbox.org [10.196.197.202]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA512) (No client certificate requested) by mout-p-201.mailbox.org (Postfix) with ESMTPS id 4h3NrK1Lx9zMlFf; Mon, 20 Jul 2026 03:55:13 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1784512513; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=yyO7p+74bbeYVSKJrWpJ70ESCwZS0XJxbtUZ29wAJLU=; b=apjqbCa0jxBziXFnpRGV8h0zNz6/evpbz+5y5Gkg8TX2CjNPr38LP3HRMcKWI0rRq5EcHz u33kHG1OSnCJ7yhqatvciyOgH1K9kKj2PPbA4v+UEQ2g2BgiBJyYSvcG2rbUnOymqKkh3w XCj78Jpe5FbdO07p0XFYIdWECHLD5GBl7rrXTJJJNw/6zndes9k4+Wmz/hg2Hl6aY2f1mp PTNInD0r60YCvE1GoAjHACucDdruLxINWVYLMiRx9hnmkoO+6kezfIfhiWx4W2oh5tXeIb VUjF1bL8wAwBjsnNyVfMoX9V+xXnz94lhqfwFOe8W6R6BvXxLVObT8sWkEI57w== From: Marek Vasut DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1784512511; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=yyO7p+74bbeYVSKJrWpJ70ESCwZS0XJxbtUZ29wAJLU=; b=hOGeZAZkLNGeY7k5SLHX4hCUWQA6KEuE0cbKUjFuO3YPuzu9DgKKh3zCcrkBYjZ8cTWtGn gzZ7zJPDaUmqdBm1gg3Dtfpejmj6zZuqhSLpP+YOmxPZj6mdG6/dbGavFSxiPb5PA0pWiI XUDNGXw612GRxCWRVWpObxu0fIPOehqrbuBdxQSox+7w1Ko9PvNwiLVB8N5jnrsjvzwRDa ffiCdwh8hQTCoVmRXfPZsRLfR4DwmVLcFpihUV2Mrv2yW253nnwjMfSde5UuxNExDF7CtP i4A69LtSU1iL4qrkOMQBmecepVPqOCprolLvVxYxP10csVyspxMrLnjzzk0qRA== To: linux-pci@vger.kernel.org Cc: Marek Vasut , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Bjorn Helgaas , Conor Dooley , Geert Uytterhoeven , Koichiro Den , Krzysztof Kozlowski , Lorenzo Pieralisi , Manivannan Sadhasivam , Rob Herring , Yoshihiro Shimoda , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: [PATCH] dt-bindings: PCI: rcar-gen4-pci-host: Document optional msi-parent Date: Mon, 20 Jul 2026 03:54:41 +0200 Message-ID: <20260720015505.314957-1-marek.vasut+renesas@mailbox.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-MBO-RS-ID: 52bbf083aa738f1cddd X-MBO-RS-META: mj4a71upqbrsneboo33mpx59w784p1kb The R-Car Gen4 PCIe controller can optionally use GIC ITS as an MSI controller. This configuration is described in DT by setting msi-parent DT property in the PCIe controller node. Document this configuration. Signed-off-by: Marek Vasut Acked-by: Rob Herring (Arm) --- Cc: "Krzysztof Wilczy=C5=84ski" Cc: Bjorn Helgaas Cc: Conor Dooley Cc: Geert Uytterhoeven Cc: Koichiro Den Cc: Krzysztof Kozlowski Cc: Lorenzo Pieralisi Cc: Manivannan Sadhasivam Cc: Rob Herring Cc: Yoshihiro Shimoda Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-pci@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org --- Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml = b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml index bb3f843c59d91..64f456c6a75a1 100644 --- a/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml +++ b/Documentation/devicetree/bindings/pci/rcar-gen4-pci-host.yaml @@ -66,6 +66,9 @@ properties: max-link-speed: maximum: 4 =20 + msi-parent: + maxItems: 1 + num-lanes: maximum: 4 =20 --=20 2.53.0