From nobody Tue Dec 16 11:45:44 2025 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 B9E24230D2B; Wed, 9 Jul 2025 21:02:50 +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=1752094970; cv=none; b=fD8+GlWzj3lyxElreuBbW4zaNHRDQscu8yPAGRNTMxovqifDyAqksJrVl1AOHlFKwnWq/Tf+gl1qsyjcqIwcYeBiLYgShOEC/yWDqXzWNeYeeKoSbun5rXBi4ebG9wzdNtd/QlhC81tFRfea93erkXFK7msFALj4YR7OMM3jvro= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752094970; c=relaxed/simple; bh=yfPKmVMhY+gbXvaT/+cR0sE6ZwAyCoBhja/l0byv5u0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=G3xQucVN9BxaTazUhyg71gD6DISkbglve7UIxJIkjv8t/LIAIuATHNJBqRJ8vUXRjTtNoonszSim8Maw3Bx64xT8fSz05Ycl6Hirdo4Hnyg18THCdhL24Dsmr5N7n2ayo+gnsdnStjKkbvo3XWEpJatx7I1UVK1N3Wx+aNCbvAo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=o6sjYR7M; 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="o6sjYR7M" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3F6A3C4CEFC; Wed, 9 Jul 2025 21:02:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752094970; bh=yfPKmVMhY+gbXvaT/+cR0sE6ZwAyCoBhja/l0byv5u0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=o6sjYR7MLYIvq9k4HiQ0ti/MSOvwJ3ZGOPHUu/birxeREIpyzoAUaTfuTTP9aUSjO J6HMYK/RI05CFmPb0qlGEO9djvhIKowYqfIfmecEVCMHMdbpcjjK50YV4qhcMvL1nO hv7116AboM1xIXUEd7DIbr+fd04iYkYobolqnmjzesZA8KBd2GBQtt+CxFWmzR1/hz rnyWxMtUkCI1VVRMSeCpTBr7Jti6PGOAr0641LJZG7t/6lrT56A81GAX4zcikNxhPu vmimCx+CPLh2sfdfaECFfromqPPKthm+qiznrJKij/RtOOO9sUUarYd5RvGGMTyrXS L7Nn6PXgk8TvQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 363C6C83F0A; Wed, 9 Jul 2025 21:02:50 +0000 (UTC) From: Frank Li via B4 Relay Date: Wed, 09 Jul 2025 17:02:13 -0400 Subject: [PATCH v20 1/9] PCI: imx6: Add helper function imx_pcie_add_lut_by_rid() 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 Message-Id: <20250709-ep-msi-v20-1-43d56f9bd54a@nxp.com> References: <20250709-ep-msi-v20-0-43d56f9bd54a@nxp.com> In-Reply-To: <20250709-ep-msi-v20-0-43d56f9bd54a@nxp.com> To: Kishon Vijay Abraham I , "Rafael J. Wysocki" , Thomas Gleixner , Anup Patel , Kishon Vijay Abraham I , Marc Zyngier , Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich , Kishon Vijay Abraham I , Bjorn Helgaas , Arnd Bergmann , Shuah Khan , Richard Zhu , Lucas Stach , Lorenzo Pieralisi , Rob Herring , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Krzysztof Kozlowski , Conor Dooley , Manivannan Sadhasivam , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= Cc: Niklas Cassel , dlemoal@kernel.org, jdmason@kudzu.us, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-kselftest@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, Niklas Cassel , Frank Li X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1752094968; l=1939; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=FTsRKbmGJkqXdF0l3uL9gIhRFF4JXE9vNw1HW1VASns=; b=w670n6CIt8AYMkZpKlgafc6T2YyiGWMKL6670dFKYT/lynE0ssEky74HbAP8Eii0hjBm0L+YN xQUvqxATm7BDjeHrLPgJdsJbx6THK9dXZhSSpf+tFIeCu1nmwtH7Z+n X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; pk=I0L1sDUfPxpAkRvPKy7MdauTuSENRq+DnA+G4qcS94Q= X-Endpoint-Received: by B4 Relay for Frank.Li@nxp.com/20240130 with auth_id=121 X-Original-From: Frank Li Reply-To: Frank.Li@nxp.com From: Frank Li Add helper function imx_pcie_add_lut_by_rid(), which will be used for MSI doorbell support in endpoint mode in the future. No functional change. Signed-off-by: Frank Li --- - change in v20 - update commit message. change from v14 to v16 - none change from v13 to v14 - new patch --- drivers/pci/controller/dwc/pci-imx6.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller= /dwc/pci-imx6.c index 5a38cfaf989b1c9606660f2e0bcd10d88fa2d6b1..032b906c44dfaa374a32f511098= 402a494ef5677 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -1096,18 +1096,14 @@ static void imx_pcie_remove_lut(struct imx_pcie *im= x_pcie, u16 rid) } } =20 -static int imx_pcie_enable_device(struct pci_host_bridge *bridge, - struct pci_dev *pdev) +static int imx_pcie_add_lut_by_rid(struct imx_pcie *imx_pcie, u32 rid) { - struct imx_pcie *imx_pcie =3D to_imx_pcie(to_dw_pcie_from_pp(bridge->sysd= ata)); - u32 sid_i, sid_m, rid =3D pci_dev_id(pdev); + struct device *dev =3D imx_pcie->pci->dev; struct device_node *target; - struct device *dev; + u32 sid_i, sid_m; int err_i, err_m; u32 sid =3D 0; =20 - dev =3D imx_pcie->pci->dev; - target =3D NULL; err_i =3D of_map_id(dev->of_node, rid, "iommu-map", "iommu-map-mask", &target, &sid_i); @@ -1182,6 +1178,13 @@ static int imx_pcie_enable_device(struct pci_host_br= idge *bridge, return imx_pcie_add_lut(imx_pcie, rid, sid); } =20 +static int imx_pcie_enable_device(struct pci_host_bridge *bridge, struct p= ci_dev *pdev) +{ + struct imx_pcie *imx_pcie =3D to_imx_pcie(to_dw_pcie_from_pp(bridge->sysd= ata)); + + return imx_pcie_add_lut_by_rid(imx_pcie, pci_dev_id(pdev)); +} + static void imx_pcie_disable_device(struct pci_host_bridge *bridge, struct pci_dev *pdev) { --=20 2.34.1