1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * PCIe host controller driver for Mobiveil PCIe Host controller
4  *
5  * Copyright (c) 2018 Mobiveil Inc.
6  * Copyright 2019 NXP
7  *
8  * Author: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
9  *	   Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
10  */
11 
12 #include <linux/init.h>
13 #include <linux/kernel.h>
14 #include <linux/module.h>
15 #include <linux/of_pci.h>
16 #include <linux/pci.h>
17 #include <linux/platform_device.h>
18 #include <linux/slab.h>
19 
20 #include "pcie-mobiveil.h"
21 
mobiveil_pcie_probe(struct platform_device * pdev)22 static int mobiveil_pcie_probe(struct platform_device *pdev)
23 {
24 	struct mobiveil_pcie *pcie;
25 	struct pci_host_bridge *bridge;
26 	struct device *dev = &pdev->dev;
27 
28 	/* allocate the PCIe port */
29 	bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie));
30 	if (!bridge)
31 		return -ENOMEM;
32 
33 	pcie = pci_host_bridge_priv(bridge);
34 	pcie->rp.bridge = bridge;
35 
36 	pcie->pdev = pdev;
37 
38 	return mobiveil_pcie_host_probe(pcie);
39 }
40 
41 static const struct of_device_id mobiveil_pcie_of_match[] = {
42 	{.compatible = "mbvl,gpex40-pcie",},
43 	{},
44 };
45 
46 MODULE_DEVICE_TABLE(of, mobiveil_pcie_of_match);
47 
48 static struct platform_driver mobiveil_pcie_driver = {
49 	.probe = mobiveil_pcie_probe,
50 	.driver = {
51 		.name = "mobiveil-pcie",
52 		.of_match_table = mobiveil_pcie_of_match,
53 		.suppress_bind_attrs = true,
54 	},
55 };
56 
57 builtin_platform_driver(mobiveil_pcie_driver);
58 
59 MODULE_DESCRIPTION("Mobiveil PCIe host controller driver");
60 MODULE_AUTHOR("Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>");
61