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authorFrans Pop <elendil@planet.nl>2009-11-17 14:27:33 -0800
committerLen Brown <len.brown@intel.com>2009-12-16 01:54:09 -0500
commitbf2abdd79ac81c52957bf0d0d5430cec5433cfb7 (patch)
treea81737912f6c93cdda0078061208e6011828dd6d
parentb552a8c56db8a74ceffdcbb9269664009a81d536 (diff)
downloadblackbird-op-linux-bf2abdd79ac81c52957bf0d0d5430cec5433cfb7.tar.gz
blackbird-op-linux-bf2abdd79ac81c52957bf0d0d5430cec5433cfb7.zip
acpi: thermal: display forced passive trip points in proc
Users can force a passive trip point for a thermal zone that does not have _PSV defined in ACPI by setting the passive attribute in sysfs. It's useful to display such trip points in /proc/acpi/thermal_zone. .../TZ1/cooling_mode:<setting not supported> .../TZ1/polling_frequency:polling frequency: 10 seconds .../TZ1/state:state: ok .../TZ1/temperature:temperature: 53 C .../TZ1/trip_points:critical (S5): 110 C .../TZ1/trip_points:passive (forced): 95 C And if not set (passive is 0): .../TZ1/trip_points:passive (forced):<not set> Signed-off-by: Frans Pop <elendil@planet.nl> Acked-by: Zhang Rui <rui.zhang@intel.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
-rw-r--r--drivers/acpi/thermal.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 65f67815902a..9073ada88835 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1052,6 +1052,13 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset)
acpi_device_bid(device));
}
seq_puts(seq, "\n");
+ } else {
+ seq_printf(seq, "passive (forced):");
+ if (tz->thermal_zone->forced_passive)
+ seq_printf(seq, " %i C\n",
+ tz->thermal_zone->forced_passive / 1000);
+ else
+ seq_printf(seq, "<not set>\n");
}
for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
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