Commit 9d0ca8df authored by Frank Li's avatar Frank Li Committed by Manivannan Sadhasivam
Browse files

PCI: imx6: Add helper function imx_pcie_add_lut_by_rid() 



Add helper function imx_pcie_add_lut_by_rid(), which will be used by the
upcoming LUT configuration for MSI/IOMMU in the Endpoint mode. No
functional change.

Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
[mani: reworded commit message and dropped tested-by tag]
Signed-off-by: default avatarManivannan Sadhasivam <mani@kernel.org>
Link: https://patch.msgid.link/20250710-ep-msi-v21-1-57683fc7fb25@nxp.com
parent 399444a8

drivers/pci/controller/dwc/pci-imx6.c

+10 −7
Original line number Diff line number Diff line
@@ -1096,18 +1096,14 @@ static void imx_pcie_remove_lut(struct imx_pcie *imx_pcie, u16 rid) 
	}

}



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 = to_imx_pcie(to_dw_pcie_from_pp(bridge->sysdata));

	u32 sid_i, sid_m, rid = pci_dev_id(pdev);

	struct device *dev = imx_pcie->pci->dev;

	struct device_node *target;

	struct device *dev;

	u32 sid_i, sid_m;

	int err_i, err_m;

	u32 sid = 0;



	dev = imx_pcie->pci->dev;



	target = NULL;

	err_i = 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_bridge *bridge, 
	return imx_pcie_add_lut(imx_pcie, rid, sid);

}



static int imx_pcie_enable_device(struct pci_host_bridge *bridge, struct pci_dev *pdev)

{

	struct imx_pcie *imx_pcie = to_imx_pcie(to_dw_pcie_from_pp(bridge->sysdata));



	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)

{