ACPI: delete un-reliable concept of cooling mode

[linux-drm-fsl-dcu.git] / drivers / acpi / thermal.c

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 73b6fe7093e99b6247056fec5f8d6ddbdc08ea9f..1ada017d01efb8c8d03630b7c87bd7b01565fd5b 100644 (file)
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -59,8 +59,6 @@
 #define ACPI_THERMAL_NOTIFY_CRITICAL   0xF0
 #define ACPI_THERMAL_NOTIFY_HOT                0xF1
 #define ACPI_THERMAL_MODE_ACTIVE       0x00
-#define ACPI_THERMAL_MODE_PASSIVE      0x01
-#define ACPI_THERMAL_MODE_CRITICAL     0xff
 #define ACPI_THERMAL_PATH_POWEROFF     "/sbin/poweroff"
 
 #define ACPI_THERMAL_MAX_ACTIVE        10
@@ -164,7 +162,6 @@ struct acpi_thermal {
        unsigned long temperature;
        unsigned long last_temperature;
        unsigned long polling_frequency;
-       u8 cooling_mode;
        volatile u8 zombie;
        struct acpi_thermal_flags flags;
        struct acpi_thermal_state state;
@@ -293,11 +290,6 @@ static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
        if (ACPI_FAILURE(status))
                return -ENODEV;
 
-       tz->cooling_mode = mode;
-
-       ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling mode [%s]\n",
-                         mode ? "passive" : "active"));
-
        return 0;
 }
 
@@ -893,15 +885,10 @@ static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset)
        if (!tz)
                goto end;
 
-       if (!tz->flags.cooling_mode) {
+       if (!tz->flags.cooling_mode)
                seq_puts(seq, "<setting not supported>\n");
-       }
-
-       if (tz->cooling_mode == ACPI_THERMAL_MODE_CRITICAL)
-               seq_printf(seq, "cooling mode:  critical\n");
        else
-               seq_printf(seq, "cooling mode:  %s\n",
-                          tz->cooling_mode ? "passive" : "active");
+               seq_puts(seq, "0 - Active; 1 - Passive\n");
 
       end:
        return 0;
@@ -1158,28 +1145,6 @@ static int acpi_thermal_get_info(struct acpi_thermal *tz)
        result = acpi_thermal_set_cooling_mode(tz, ACPI_THERMAL_MODE_ACTIVE);
        if (!result)
                tz->flags.cooling_mode = 1;
-       else {
-               /* Oh,we have not _SCP method.
-                  Generally show cooling_mode by _ACx, _PSV,spec 12.2 */
-               tz->flags.cooling_mode = 0;
-               if (tz->trips.active[0].flags.valid
-                   && tz->trips.passive.flags.valid) {
-                       if (tz->trips.passive.temperature >
-                           tz->trips.active[0].temperature)
-                               tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE;
-                       else
-                               tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE;
-               } else if (!tz->trips.active[0].flags.valid
-                          && tz->trips.passive.flags.valid) {
-                       tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE;
-               } else if (tz->trips.active[0].flags.valid
-                          && !tz->trips.passive.flags.valid) {
-                       tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE;
-               } else {
-                       /* _ACx and _PSV are optional, but _CRT is required */
-                       tz->cooling_mode = ACPI_THERMAL_MODE_CRITICAL;
-               }
-       }
 
        /* Get default polling frequency [_TZP] (optional) */
        if (tzp)