redonkable/remarkable-linux
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Pull thermal into release branch

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This commit is contained in:
Len Brown 2007-08-24 22:26:19 -04:00
parent b7011d5386 2db9ccba8d
commit 519ef1af47
2 changed files with 44 additions and 7 deletions
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4
Documentation/kernel-parameters.txt
View file

@ -1823,6 +1823,10 @@ and is between 256 and 4096 characters. It is defined in the file
-1: disable all active trip points in all thermal zones
<degrees C>: override all lowest active trip points
thermal.crt= [HW,ACPI]
-1: disable all critical trip points in all thermal zones
<degrees C>: lower all critical trip points
thermal.nocrt= [HW,ACPI]
Set to disable actions on ACPI thermal zone
critical and hot trip points.

47
drivers/acpi/thermal.c
View file

@ -77,23 +77,27 @@ MODULE_LICENSE("GPL");
static int act;
module_param(act, int, 0644);
MODULE_PARM_DESC(act, "Disable or override all lowest active trip points.\n");
MODULE_PARM_DESC(act, "Disable or override all lowest active trip points.");
static int crt;
module_param(crt, int, 0644);
MODULE_PARM_DESC(crt, "Disable or lower all critical trip points.");
static int tzp;
module_param(tzp, int, 0444);
MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n");
MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.");
static int nocrt;
module_param(nocrt, int, 0);
MODULE_PARM_DESC(nocrt, "Set to disable action on ACPI thermal zone critical and hot trips.\n");
MODULE_PARM_DESC(nocrt, "Set to take no action upon ACPI thermal zone critical trips points.");
static int off;
module_param(off, int, 0);
MODULE_PARM_DESC(off, "Set to disable ACPI thermal support.\n");
MODULE_PARM_DESC(off, "Set to disable ACPI thermal support.");
static int psv;
module_param(psv, int, 0644);
MODULE_PARM_DESC(psv, "Disable or override all passive trip points.\n");
MODULE_PARM_DESC(psv, "Disable or override all passive trip points.");
static int acpi_thermal_add(struct acpi_device *device);
static int acpi_thermal_remove(struct acpi_device *device, int type);
@ -340,6 +344,20 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
tz->trips.critical.temperature));
}
if (tz->trips.critical.flags.valid == 1) {
if (crt == -1) {
tz->trips.critical.flags.valid = 0;
} else if (crt > 0) {
unsigned long crt_k = CELSIUS_TO_KELVIN(crt);
/*
* Allow override to lower critical threshold
*/
if (crt_k < tz->trips.critical.temperature)
tz->trips.critical.temperature = crt_k;
}
}
/* Critical Sleep (optional) */
status =
@ -1067,9 +1085,9 @@ static int acpi_thermal_add_fs(struct acpi_device *device)
entry->owner = THIS_MODULE;
}
/* 'trip_points' [R/W] */
/* 'trip_points' [R] */
entry = create_proc_entry(ACPI_THERMAL_FILE_TRIP_POINTS,
S_IFREG | S_IRUGO | S_IWUSR,
S_IRUGO,
acpi_device_dir(device));
if (!entry)
return -ENODEV;
@ -1339,6 +1357,13 @@ static int thermal_act(struct dmi_system_id *d) {
}
return 0;
}
static int thermal_nocrt(struct dmi_system_id *d) {
printk(KERN_NOTICE "ACPI: %s detected: "
"disabling all critical thermal trip point actions.\n", d->ident);
nocrt = 1;
return 0;
}
static int thermal_tzp(struct dmi_system_id *d) {
if (tzp == 0) {
@ -1387,6 +1412,14 @@ static struct dmi_system_id thermal_dmi_table[] __initdata = {
DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
},
},
{
.callback = thermal_nocrt,
.ident = "Gigabyte GA-7ZX",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
DMI_MATCH(DMI_BOARD_NAME, "7ZX"),
},
},
{}
};
#endif /* CONFIG_DMI */