drivers/char/ipmi/ipmi_si_parisc.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2
   3 #include <linux/module.h>
   4 #include <asm/hardware.h>       /* for register_parisc_driver() stuff */
   5 #include <asm/parisc-device.h>
   6 #include "ipmi_si.h"
   7
   8 static bool parisc_registered;
   9
  10 static int __init ipmi_parisc_probe(struct parisc_device *dev)
  11 {
  12         struct si_sm_io io;
  13
  14         memset(&io, 0, sizeof(io));
  15
  16         io.si_type      = SI_KCS;
  17         io.addr_source  = SI_DEVICETREE;
  18         io.addr_space   = IPMI_MEM_ADDR_SPACE;
  19         io.addr_data    = dev->hpa.start;
  20         io.regsize      = 1;
  21         io.regspacing   = 1;
  22         io.regshift     = 0;
  23         io.irq          = 0; /* no interrupt */
  24         io.irq_setup    = NULL;
  25         io.dev          = &dev->dev;
  26
  27         dev_dbg(&dev->dev, "addr 0x%lx\n", io.addr_data);
  28
  29         return ipmi_si_add_smi(&io);
  30 }
  31
  32 static int __exit ipmi_parisc_remove(struct parisc_device *dev)
  33 {
  34         return ipmi_si_remove_by_dev(&dev->dev);
  35 }
  36
  37 static const struct parisc_device_id ipmi_parisc_tbl[] __initconst = {
  38         { HPHW_MC, HVERSION_REV_ANY_ID, 0x004, 0xC0 },
  39         { 0, }
  40 };
  41
  42 MODULE_DEVICE_TABLE(parisc, ipmi_parisc_tbl);
  43
  44 static struct parisc_driver ipmi_parisc_driver __refdata = {
  45         .name =         "ipmi",
  46         .id_table =     ipmi_parisc_tbl,
  47         .probe =        ipmi_parisc_probe,
  48         .remove =       __exit_p(ipmi_parisc_remove),
  49 };
  50
  51 void ipmi_si_parisc_init(void)
  52 {
  53         register_parisc_driver(&ipmi_parisc_driver);
  54         parisc_registered = true;
  55 }
  56
  57 void ipmi_si_parisc_shutdown(void)
  58 {
  59         if (parisc_registered)
  60                 unregister_parisc_driver(&ipmi_parisc_driver);
  61 }