drivers/pwm/pwm-lpss-pci.c

   1 /*
   2  * Intel Low Power Subsystem PWM controller PCI driver
   3  *
   4  * Copyright (C) 2014, Intel Corporation
   5  *
   6  * Derived from the original pwm-lpss.c
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/module.h>
  15 #include <linux/pci.h>
  16
  17 #include "pwm-lpss.h"
  18
  19 static int pwm_lpss_probe_pci(struct pci_dev *pdev,
  20                               const struct pci_device_id *id)
  21 {
  22         const struct pwm_lpss_boardinfo *info;
  23         struct pwm_lpss_chip *lpwm;
  24         int err;
  25
  26         err = pcim_enable_device(pdev);
  27         if (err < 0)
  28                 return err;
  29
  30         info = (struct pwm_lpss_boardinfo *)id->driver_data;
  31         lpwm = pwm_lpss_probe(&pdev->dev, &pdev->resource[0], info);
  32         if (IS_ERR(lpwm))
  33                 return PTR_ERR(lpwm);
  34
  35         pci_set_drvdata(pdev, lpwm);
  36         return 0;
  37 }
  38
  39 static void pwm_lpss_remove_pci(struct pci_dev *pdev)
  40 {
  41         struct pwm_lpss_chip *lpwm = pci_get_drvdata(pdev);
  42
  43         pwm_lpss_remove(lpwm);
  44 }
  45
  46 static const struct pci_device_id pwm_lpss_pci_ids[] = {
  47         { PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&pwm_lpss_byt_info},
  48         { PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&pwm_lpss_byt_info},
  49         { PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&pwm_lpss_bsw_info},
  50         { PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&pwm_lpss_bsw_info},
  51         { },
  52 };
  53 MODULE_DEVICE_TABLE(pci, pwm_lpss_pci_ids);
  54
  55 static struct pci_driver pwm_lpss_driver_pci = {
  56         .name = "pwm-lpss",
  57         .id_table = pwm_lpss_pci_ids,
  58         .probe = pwm_lpss_probe_pci,
  59         .remove = pwm_lpss_remove_pci,
  60 };
  61 module_pci_driver(pwm_lpss_driver_pci);
  62
  63 MODULE_DESCRIPTION("PWM PCI driver for Intel LPSS");
  64 MODULE_LICENSE("GPL v2");