From nobody Mon Feb 9 13:01:58 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 73E7723958C; Fri, 17 Oct 2025 08:48:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760690896; cv=none; b=usbCtHEn9dqqb+boiACbDakvzfXBe8FXyQJQfjKqMmKjJvX5XdGxHfVlPQLMnl9JSnmrz6Z3cl6odVrnVRYaT2hSHyNkzt2ERsJqvi+IJF51MJeOtvnUztZRUuTkS7arRfVX+yC5OF3avB6c3LvJKWahZ5z8XEFFLMWe9TqVlfQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760690896; c=relaxed/simple; bh=web6L5TPZtt08mmDaVYY7W2Sw34M19ouNiW4LSSozIA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=egqiIJ0nKlHZiWD+qJKEqngRWRVa2qla38rfWRV8IIpQzdBAm8tRimnzdfrkcCSkP2vKKUn43MQ+Z8yIdB8yXfKcv86L64VSVfp0ERMAyuKRMpQonYUmcknn8leS7QXqlCzI6zPRx9mSDSsl2Pb9oyT4zhB3o1GwC7/OcdfI7bI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gtOQZkVC; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gtOQZkVC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 955CEC19422; Fri, 17 Oct 2025 08:48:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760690896; bh=web6L5TPZtt08mmDaVYY7W2Sw34M19ouNiW4LSSozIA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gtOQZkVCkVnVCHdtENUCT0nGeZ0l/MU+FQuzWIav1SV3uxLLVwPqSFTTrz+Jj0wCX VU1hymP0EmTcTF9OYHeLQRPRkYsgPtgbwfZ3nC4djnDHs0cND15KNIOnBeDoIhEzHE LK9hxvF9AhqybfE2xcjQR0HbOWaDYVIxSxrEEeRHBDLNArWEM5WhXDboiY6C6Ryso6 ZQKKEfsP4D0FddZohwDDB1U5AO0fuQ1pJqVqZc6B5PY7K6eZKFbyUBTkO8/f+JfELA BBxT5GyhkD2eTw40KnBJSvrTeEPVGZumrO7KBFjOUwEaJG5rKnk+PUfcRIkCrl3GYE NqDdMHL/26zgQ== From: Lorenzo Pieralisi To: linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, Scott Branden , Bjorn Helgaas , Rob Herring , Ray Jui , Manivannan Sadhasivam , =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= , Sascha Bischoff , Thomas Gleixner , Frank Li , Marc Zyngier Subject: [PATCH v3 4/5] PCI: iproc: Implement MSI controller node detection with of_msi_xlate() Date: Fri, 17 Oct 2025 10:47:51 +0200 Message-ID: <20251017084752.1590264-5-lpieralisi@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251017084752.1590264-1-lpieralisi@kernel.org> References: <20251017084752.1590264-1-lpieralisi@kernel.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 The functionality implemented in the iproc driver in order to detect an OF MSI controller node is now fully implemented in of_msi_xlate(). Replace the current msi-map/msi-parent parsing code with of_msi_xlate(). Since of_msi_xlate() is also a deviceID mapping API, pass in a fictitious 0 as deviceID - the driver only requires detecting the OF MSI controller node not the deviceID mapping per-se (of_msi_xlate() return value is ignored for the same reason). Signed-off-by: Lorenzo Pieralisi Cc: Scott Branden Cc: Bjorn Helgaas Cc: Rob Herring Cc: Ray Jui Cc: Manivannan Sadhasivam Cc: "Krzysztof Wilczy=C5=84ski" --- drivers/pci/controller/pcie-iproc.c | 22 +++++----------------- 1 file changed, 5 insertions(+), 17 deletions(-) diff --git a/drivers/pci/controller/pcie-iproc.c b/drivers/pci/controller/p= cie-iproc.c index 22134e95574b..ccf71993ea35 100644 --- a/drivers/pci/controller/pcie-iproc.c +++ b/drivers/pci/controller/pcie-iproc.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -1337,29 +1338,16 @@ static int iproc_pcie_msi_steer(struct iproc_pcie *= pcie, =20 static int iproc_pcie_msi_enable(struct iproc_pcie *pcie) { - struct device_node *msi_node; + struct device_node *msi_node =3D NULL; int ret; =20 /* * Either the "msi-parent" or the "msi-map" phandle needs to exist * for us to obtain the MSI node. */ - - msi_node =3D of_parse_phandle(pcie->dev->of_node, "msi-parent", 0); - if (!msi_node) { - const __be32 *msi_map =3D NULL; - int len; - u32 phandle; - - msi_map =3D of_get_property(pcie->dev->of_node, "msi-map", &len); - if (!msi_map) - return -ENODEV; - - phandle =3D be32_to_cpup(msi_map + 1); - msi_node =3D of_find_node_by_phandle(phandle); - if (!msi_node) - return -ENODEV; - } + of_msi_xlate(pcie->dev, &msi_node, 0); + if (!msi_node) + return -ENODEV; =20 /* * Certain revisions of the iProc PCIe controller require additional --=20 2.50.1