drivers/pci/controller/mobiveil/pcie-mobiveil-plat.c

   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
  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_LICENSE("GPL v2");
  60 MODULE_DESCRIPTION("Mobiveil PCIe host controller driver");
  61 MODULE_AUTHOR("Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>");