Merge "msm: pcie: register PCI driver with framework for root port" (c5988a33) · Commits · e / devices / android_kernel_oneplus_sm8150

Documentation/devicetree/bindings/pci/msm_pcie.txt

+17 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,8 @@ Required properties:
		- perst-gpio: PERST GPIO specified by PCIe spec.
		- wake-gpio: WAKE GPIO specified by PCIe spec.
		- phy-status-offset: Offset from PCIe PHY base to check if PCIe PHY is up.
		- pcie_rc<PCIe index>: PCI node is a sub-node of PCIe controller node.
		node. This node holds root complex specific configurations and properties.
		- <supply-name>-supply: phandle to the regulator device tree node.
		Refer to the schematics for the corresponding voltage regulators.
		vreg-1.8-supply: phandle to the analog supply for the PCIe controller.
		@@ -128,6 +130,17 @@ Optional Properties:
		- reset-names: reset signal name strings sorted in the same order as the resets
		property.

		=================
		Root Complex node
		=================

		Root complex are defined as subnodes of the PCIe controller node.

		Required properties:
		- reg: Array (5-cell PCI resource) of <u32>. First cell is devfn, which is
		determined by pci bus topology. Assign the other cells 0 since they are not
		used.

		Example:

		pcie0: qcom,pcie@fc520000 {
		@@ -304,4 +317,8 @@ Example:
		qcom,msm-bus,vectors-KBps =
		<45 512 0 0>,
		<45 512 500 800>;

		pcie_rc0: pcie_rc0 {
		reg = <0x0 0x0 0x0 0x0 0x0>;
		};
		};

+43 −0

Original line number	Diff line number	Diff line
		@@ -649,6 +649,11 @@ struct msm_pcie_dev_t {
		struct msm_pcie_device_info pcidev_table[MAX_DEVICE_NUM];
		};

		struct msm_root_dev_t {
		struct msm_pcie_dev_t *pcie_dev;
		struct pci_dev *pci_dev;
		};

		/* debug mask sys interface */
		static int msm_pcie_debug_mask;
		module_param_named(debug_mask, msm_pcie_debug_mask,
		@@ -6333,6 +6338,40 @@ static int msm_pcie_remove(struct platform_device *pdev)
		return ret;
		}


		int msm_pci_probe(struct pci_dev *pci_dev,
		const struct pci_device_id *device_id)
		{
		struct msm_pcie_dev_t *pcie_dev = PCIE_BUS_PRIV_DATA(pci_dev->bus);
		struct msm_root_dev_t *root_dev;

		PCIE_DBG(pcie_dev, "PCIe: RC%d: PCI Probe\n", pcie_dev->rc_idx);

		if (!pci_dev->dev.of_node)
		return -ENODEV;

		root_dev = devm_kzalloc(&pci_dev->dev, sizeof(*root_dev), GFP_KERNEL);
		if (!root_dev)
		return -ENOMEM;

		root_dev->pcie_dev = pcie_dev;
		root_dev->pci_dev = pci_dev;
		dev_set_drvdata(&pci_dev->dev, root_dev);

		return 0;
		}

		static struct pci_device_id msm_pci_device_id[] = {
		{PCI_DEVICE(0x17cb, 0x0108)},
		{0},
		};

		static struct pci_driver msm_pci_driver = {
		.name = "pci-msm-rc",
		.id_table = msm_pci_device_id,
		.probe = msm_pci_probe,
		};

		static const struct of_device_id msm_pcie_match[] = {
		{ .compatible = "qcom,pci-msm",
		},
		@@ -6416,6 +6455,10 @@ static int __init pcie_init(void)

		msm_pcie_debugfs_init();

		ret = pci_register_driver(&msm_pci_driver);
		if (ret)
		return ret;

		ret = platform_driver_register(&msm_pcie_driver);

		return ret;