Merge branch 'pm-cpuidle'

[firefly-linux-kernel-4.4.55.git] / drivers / acpi / thermal.c

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index a33821ca3895e672a32d1d145aca7108751667e5..6a0329340b42ad188add760db66ebcc17ba9ab22 100644 (file)
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -50,11 +50,6 @@
 
 #define ACPI_THERMAL_CLASS             "thermal_zone"
 #define ACPI_THERMAL_DEVICE_NAME       "Thermal Zone"
-#define ACPI_THERMAL_FILE_STATE                "state"
-#define ACPI_THERMAL_FILE_TEMPERATURE  "temperature"
-#define ACPI_THERMAL_FILE_TRIP_POINTS  "trip_points"
-#define ACPI_THERMAL_FILE_COOLING_MODE "cooling_mode"
-#define ACPI_THERMAL_FILE_POLLING_FREQ "polling_frequency"
 #define ACPI_THERMAL_NOTIFY_TEMPERATURE        0x80
 #define ACPI_THERMAL_NOTIFY_THRESHOLDS 0x81
 #define ACPI_THERMAL_NOTIFY_DEVICES    0x82
@@ -190,7 +185,6 @@ struct acpi_thermal {
        struct thermal_zone_device *thermal_zone;
        int tz_enabled;
        int kelvin_offset;
-       struct mutex lock;
 };
 
 /* --------------------------------------------------------------------------
@@ -239,26 +233,16 @@ static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)
 
 static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
 {
-       acpi_status status = AE_OK;
-       union acpi_object arg0 = { ACPI_TYPE_INTEGER };
-       struct acpi_object_list arg_list = { 1, &arg0 };
-       acpi_handle handle = NULL;
-
-
        if (!tz)
                return -EINVAL;
 
-       status = acpi_get_handle(tz->device->handle, "_SCP", &handle);
-       if (ACPI_FAILURE(status)) {
+       if (!acpi_has_method(tz->device->handle, "_SCP")) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
                return -ENODEV;
-       }
-
-       arg0.integer.value = mode;
-
-       status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
-       if (ACPI_FAILURE(status))
+       } else if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
+                                                          "_SCP", mode))) {
                return -ENODEV;
+       }
 
        return 0;
 }
@@ -491,14 +475,14 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
                        break;
        }
 
-       if (flag & ACPI_TRIPS_DEVICES) {
-               memset(&devices, 0, sizeof(struct acpi_handle_list));
+       if ((flag & ACPI_TRIPS_DEVICES)
+           && acpi_has_method(tz->device->handle, "_TZD")) {
+               memset(&devices, 0, sizeof(devices));
                status = acpi_evaluate_reference(tz->device->handle, "_TZD",
                                                NULL, &devices);
-               if (memcmp(&tz->devices, &devices,
-                               sizeof(struct acpi_handle_list))) {
-                       memcpy(&tz->devices, &devices,
-                               sizeof(struct acpi_handle_list));
+               if (ACPI_SUCCESS(status)
+                   && memcmp(&tz->devices, &devices, sizeof(devices))) {
+                       tz->devices = devices;
                        ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
                }
        }
@@ -769,7 +753,6 @@ static int thermal_notify(struct thermal_zone_device *thermal, int trip,
        else
                return 0;
 
-       acpi_bus_generate_proc_event(tz->device, type, 1);
        acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
                                        dev_name(&tz->device->dev), type, 1);
 
@@ -850,12 +833,13 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
                if (ACPI_SUCCESS(status) && (dev == device)) {
                        if (bind)
                                result = thermal_zone_bind_cooling_device
-                                               (thermal, -1, cdev,
-                                                THERMAL_NO_LIMIT,
+                                               (thermal, THERMAL_TRIPS_NONE,
+                                                cdev, THERMAL_NO_LIMIT,
                                                 THERMAL_NO_LIMIT);
                        else
                                result = thermal_zone_unbind_cooling_device
-                                               (thermal, -1, cdev);
+                                               (thermal, THERMAL_TRIPS_NONE,
+                                                cdev);
                        if (result)
                                goto failed;
                }
@@ -980,14 +964,12 @@ static void acpi_thermal_notify(struct acpi_device *device, u32 event)
        case ACPI_THERMAL_NOTIFY_THRESHOLDS:
                acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_THRESHOLDS);
                acpi_thermal_check(tz);
-               acpi_bus_generate_proc_event(device, event, 0);
                acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                  dev_name(&device->dev), event, 0);
                break;
        case ACPI_THERMAL_NOTIFY_DEVICES:
                acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_DEVICES);
                acpi_thermal_check(tz);
-               acpi_bus_generate_proc_event(device, event, 0);
                acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                  dev_name(&device->dev), event, 0);
                break;
@@ -1101,8 +1083,6 @@ static int acpi_thermal_add(struct acpi_device *device)
        strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
        strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
        device->driver_data = tz;
-       mutex_init(&tz->lock);
-
 
        result = acpi_thermal_get_info(tz);
        if (result)
@@ -1135,7 +1115,6 @@ static int acpi_thermal_remove(struct acpi_device *device)
        tz = acpi_driver_data(device);
 
        acpi_thermal_unregister_thermal_zone(tz);
-       mutex_destroy(&tz->lock);
        kfree(tz);
        return 0;
 }