ACPI: thinkpad-acpi: register with the device model

[powerpc.git] / drivers / misc / thinkpad_acpi.c

diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 9b4eea4..e47eaf7 100644 (file)
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -474,6 +474,25 @@ static char *next_cmd(char **cmds)
 }
 
 
+/****************************************************************************
+ ****************************************************************************
+ *
+ * Device model: hwmon and platform
+ *
+ ****************************************************************************
+ ****************************************************************************/
+
+static struct platform_device *tpacpi_pdev = NULL;
+static struct class_device *tpacpi_hwmon = NULL;
+
+static struct platform_driver tpacpi_pdriver = {
+       .driver = {
+               .name = IBM_DRVR_NAME,
+               .owner = THIS_MODULE,
+       },
+};
+
+
 /****************************************************************************
  ****************************************************************************
  *
@@ -3225,10 +3244,12 @@ static int __init thinkpad_acpi_module_init(void)
 {
        int ret, i;
 
+       /* Driver-level probe */
        ret = probe_for_thinkpad();
        if (ret)
                return ret;
 
+       /* Driver initialization */
        ibm_thinkpad_ec_found = check_dmi_for_ec();
        IBM_ACPIHANDLE_INIT(ecrd);
        IBM_ACPIHANDLE_INIT(ecwr);
@@ -3241,6 +3262,31 @@ static int __init thinkpad_acpi_module_init(void)
        }
        proc_dir->owner = THIS_MODULE;
 
+       ret = platform_driver_register(&tpacpi_pdriver);
+       if (ret) {
+               printk(IBM_ERR "unable to register platform driver\n");
+               thinkpad_acpi_module_exit();
+               return ret;
+       }
+
+       /* Device initialization */
+       tpacpi_pdev = platform_device_register_simple(IBM_DRVR_NAME, -1,
+                                                       NULL, 0);
+       if (IS_ERR(tpacpi_pdev)) {
+               ret = PTR_ERR(tpacpi_pdev);
+               tpacpi_pdev = NULL;
+               printk(IBM_ERR "unable to register platform device\n");
+               thinkpad_acpi_module_exit();
+               return ret;
+       }
+       tpacpi_hwmon = hwmon_device_register(&tpacpi_pdev->dev);
+       if (IS_ERR(tpacpi_hwmon)) {
+               ret = PTR_ERR(tpacpi_hwmon);
+               tpacpi_hwmon = NULL;
+               printk(IBM_ERR "unable to register hwmon device\n");
+               thinkpad_acpi_module_exit();
+               return ret;
+       }
        for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
                ret = ibm_init(&ibms_init[i]);
                if (ret >= 0 && *ibms_init[i].param)
@@ -3266,6 +3312,14 @@ static void thinkpad_acpi_module_exit(void)
 
        dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
 
+       if (tpacpi_hwmon)
+               hwmon_device_unregister(tpacpi_hwmon);
+
+       if (tpacpi_pdev)
+               platform_device_unregister(tpacpi_pdev);
+
+       platform_driver_unregister(&tpacpi_pdriver);
+
        if (proc_dir)
                remove_proc_entry(IBM_PROC_DIR, acpi_root_dir);