drivers/platform/x86/intel_scu_pltdrv.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Platform driver for the Intel SCU.
   4  *
   5  * Copyright (C) 2019, Intel Corporation
   6  * Authors: Divya Sasidharan <divya.s.sasidharan@intel.com>
   7  *          Mika Westerberg <mika.westerberg@linux.intel.com>
   8  *          Rajmohan Mani <rajmohan.mani@intel.com>
   9  */
  10
  11 #include <linux/err.h>
  12 #include <linux/errno.h>
  13 #include <linux/ioport.h>
  14 #include <linux/mod_devicetable.h>
  15 #include <linux/module.h>
  16 #include <linux/platform_device.h>
  17
  18 #include <asm/intel_scu_ipc.h>
  19
  20 static int intel_scu_platform_probe(struct platform_device *pdev)
  21 {
  22         struct intel_scu_ipc_data scu_data = {};
  23         struct intel_scu_ipc_dev *scu;
  24         const struct resource *res;
  25
  26         scu_data.irq = platform_get_irq_optional(pdev, 0);
  27         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
  28         if (!res)
  29                 return -ENOMEM;
  30
  31         scu_data.mem = *res;
  32
  33         scu = devm_intel_scu_ipc_register(&pdev->dev, &scu_data);
  34         if (IS_ERR(scu))
  35                 return PTR_ERR(scu);
  36
  37         platform_set_drvdata(pdev, scu);
  38         return 0;
  39 }
  40
  41 static const struct acpi_device_id intel_scu_acpi_ids[] = {
  42         { "INTC1026" },
  43         {}
  44 };
  45 MODULE_DEVICE_TABLE(acpi, intel_scu_acpi_ids);
  46
  47 static struct platform_driver intel_scu_platform_driver = {
  48         .probe = intel_scu_platform_probe,
  49         .driver = {
  50                 .name = "intel_scu",
  51                 .acpi_match_table = intel_scu_acpi_ids,
  52         },
  53 };
  54 module_platform_driver(intel_scu_platform_driver);
  55
  56 MODULE_AUTHOR("Divya Sasidharan <divya.s.sasidharan@intel.com>");
  57 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com");
  58 MODULE_AUTHOR("Rajmohan Mani <rajmohan.mani@intel.com>");
  59 MODULE_DESCRIPTION("Intel SCU platform driver");
  60 MODULE_LICENSE("GPL v2");