projects / people / pmueller / ipfire-2.x.git / blame
| Commit | Line | Data |
|---|---|---|
| 2cb7cef9 BS |
1 | From: Thomas Renninger <trenn@suse.de> |
| 2 | Subject: Avoid critical temp shutdowns on specific ThinkPad T4x(p) and R40 | |
| 3 | References: https://bugzilla.novell.com/show_bug.cgi?id=333043 | |
| 4 | ||
| 5 | --- | |
| 6 | drivers/acpi/thermal.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++ | |
| 7 | 1 file changed, 73 insertions(+) | |
| 8 | ||
| 9 | --- a/drivers/acpi/thermal.c | |
| 10 | +++ b/drivers/acpi/thermal.c | |
| 11 | @@ -42,6 +42,7 @@ | |
| 12 | #include <linux/kmod.h> | |
| 13 | #include <linux/seq_file.h> | |
| 14 | #include <linux/reboot.h> | |
| 15 | +#include <linux/dmi.h> | |
| 16 | #include <asm/uaccess.h> | |
| 17 | #include <linux/thermal.h> | |
| 18 | #include <acpi/acpi_bus.h> | |
| 19 | @@ -1640,6 +1641,66 @@ static int acpi_thermal_get_info(struct | |
| 20 | return 0; | |
| 21 | } | |
| 22 | ||
| 23 | +static struct dmi_system_id thermal_psv_dmi_table[] = { | |
| 24 | + { | |
| 25 | + .ident = "IBM ThinkPad T41", | |
| 26 | + .matches = { | |
| 27 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 28 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad T41"), | |
| 29 | + }, | |
| 30 | + }, | |
| 31 | + { | |
| 32 | + .ident = "IBM ThinkPad T42", | |
| 33 | + .matches = { | |
| 34 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 35 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad T42"), | |
| 36 | + }, | |
| 37 | + }, | |
| 38 | + { | |
| 39 | + .ident = "IBM ThinkPad T43", | |
| 40 | + .matches = { | |
| 41 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 42 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad T43"), | |
| 43 | + }, | |
| 44 | + }, | |
| 45 | + { | |
| 46 | + .ident = "IBM ThinkPad T41p", | |
| 47 | + .matches = { | |
| 48 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 49 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad T41p"), | |
| 50 | + }, | |
| 51 | + }, | |
| 52 | + { | |
| 53 | + .ident = "IBM ThinkPad T42p", | |
| 54 | + .matches = { | |
| 55 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 56 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad T42p"), | |
| 57 | + }, | |
| 58 | + }, | |
| 59 | + { | |
| 60 | + .ident = "IBM ThinkPad T43p", | |
| 61 | + .matches = { | |
| 62 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 63 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad T43p"), | |
| 64 | + }, | |
| 65 | + }, | |
| 66 | + { | |
| 67 | + .ident = "IBM ThinkPad R40", | |
| 68 | + .matches = { | |
| 69 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 70 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad R40"), | |
| 71 | + }, | |
| 72 | + }, | |
| 73 | + { | |
| 74 | + .ident = "IBM ThinkPad R50p", | |
| 75 | + .matches = { | |
| 76 | + DMI_MATCH(DMI_BIOS_VENDOR,"IBM"), | |
| 77 | + DMI_MATCH(DMI_PRODUCT_VERSION,"ThinkPad R50p"), | |
| 78 | + }, | |
| 79 | + }, | |
| 80 | + {}, | |
| 81 | +}; | |
| 82 | + | |
| 83 | static int acpi_thermal_add(struct acpi_device *device) | |
| 84 | { | |
| 85 | int result = 0; | |
| 86 | @@ -1670,6 +1731,18 @@ static int acpi_thermal_add(struct acpi_ | |
| 87 | if (result) | |
| 88 | goto free_memory; | |
| 89 | ||
| 90 | + if (dmi_check_system(thermal_psv_dmi_table)) { | |
| 91 | + if (tz->trips.passive.flags.valid && | |
| 92 | + tz->trips.passive.temperature > CELSIUS_TO_KELVIN(85)) { | |
| 93 | + printk (KERN_INFO "Adjust passive trip point from %lu" | |
| 94 | + " to %lu\n", | |
| 95 | + KELVIN_TO_CELSIUS(tz->trips.passive.temperature), | |
| 96 | + KELVIN_TO_CELSIUS(tz->trips.passive.temperature - 150)); | |
| 97 | + tz->trips.passive.temperature -= 150; | |
| 98 | + acpi_thermal_set_polling(tz, 5); | |
| 99 | + } | |
| 100 | + } | |
| 101 | + | |
| 102 | result = acpi_thermal_add_fs(device); | |
| 103 | if (result) | |
| 104 | goto unregister_thermal_zone; |