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authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>2007-07-18 23:45:46 -0300
committerLen Brown <len.brown@intel.com>2007-07-21 23:50:05 -0400
commit3d6f99ca00ccf861305fd8630a21f2e696886708 (patch)
tree9c22295bbcccf8325cc690c691cf16f28bfeb3a4
parenta8fba3da3d11d808137be7ebeb3b6938a42f011f (diff)
ACPI: thinkpad-acpi: make EC-based thermal readings non-experimental
Reading the 16 thermal sensors directly from the EC has been stable for about one year, in all supported ThinkPad models. Remove its "experimental" label. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
-rw-r--r--Documentation/thinkpad-acpi.txt18
-rw-r--r--drivers/misc/thinkpad_acpi.c2
2 files changed, 6 insertions, 14 deletions
diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt
index 5d827ded34d..3eb949e14a0 100644
--- a/Documentation/thinkpad-acpi.txt
+++ b/Documentation/thinkpad-acpi.txt
@@ -710,23 +710,15 @@ Temperature sensors
procfs: /proc/acpi/ibm/thermal
sysfs device attributes: (hwmon) temp*_input
-Most ThinkPads include six or more separate temperature sensors but
-only expose the CPU temperature through the standard ACPI methods.
-This feature shows readings from up to eight different sensors on older
-ThinkPads, and it has experimental support for up to sixteen different
-sensors on newer ThinkPads.
-
-EXPERIMENTAL: The 16-sensors feature is marked EXPERIMENTAL because the
-implementation directly accesses hardware registers and may not work as
-expected. USE WITH CAUTION! To use this feature, you need to supply the
-experimental=1 parameter when loading the module. When EXPERIMENTAL
-mode is enabled, reading the first 8 sensors on newer ThinkPads will
-also use an new experimental thermal sensor access mode.
+Most ThinkPads include six or more separate temperature sensors but only
+expose the CPU temperature through the standard ACPI methods. This
+feature shows readings from up to eight different sensors on older
+ThinkPads, and up to sixteen different sensors on newer ThinkPads.
For example, on the X40, a typical output may be:
temperatures: 42 42 45 41 36 -128 33 -128
-EXPERIMENTAL: On the T43/p, a typical output may be:
+On the T43/p, a typical output may be:
temperatures: 48 48 36 52 38 -128 31 -128 48 52 48 -128 -128 -128 -128 -128
The mapping of thermal sensors to physical locations varies depending on
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index f74d7d600d8..84a1000e4ce 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -2709,7 +2709,7 @@ static int __init thermal_init(struct ibm_init_struct *iibm)
acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv");
- if (thinkpad_id.ec_model && experimental) {
+ if (thinkpad_id.ec_model) {
/*
* Direct EC access mode: sensors at registers
* 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for