diff options
| author | Luca Tettamanti <kronos.it@gmail.com> | 2011-01-22 16:07:11 +0100 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-01-23 09:30:08 -0800 |
| commit | 86ca33e82597c0aeb15fbdfb9619e86ef6b0f704 (patch) | |
| tree | affd4f5f31d8295f0f629512325ece4621ba78f4 /drivers/hwmon/asus_atk0110.c | |
| parent | 9d1f8a40ddab65a5cedb69b369ee4c0c6e4acf6b (diff) | |
| download | linux-86ca33e82597c0aeb15fbdfb9619e86ef6b0f704.tar.gz | |
hwmon: (asus_atk0110) Override interface detection on Sabertooth X58
ASUS Sabertooth X58 has a bug in ACPI that prevents the reading of MCH temperature when the "old" ATK0110 interface is used. Add a DMI entry to override the detection heuristic and force the use of the "new" interface on this board. Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Tested-by: Joris Creyghton <jorisctn@gmail.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'drivers/hwmon/asus_atk0110.c')
| -rw-r--r-- | drivers/hwmon/asus_atk0110.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index 2d68cf3c223b..b5e892017e0c 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -13,6 +13,7 @@ #include <linux/list.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/dmi.h> #include <acpi/acpi.h> #include <acpi/acpixf.h> @@ -22,6 +23,21 @@ #define ATK_HID "ATK0110" +static bool new_if; +module_param(new_if, bool, 0); +MODULE_PARM_DESC(new_if, "Override detection heuristic and force the use of the new ATK0110 interface"); + +static const struct dmi_system_id __initconst atk_force_new_if[] = { + { + /* Old interface has broken MCH temp monitoring */ + .ident = "Asus Sabertooth X58", + .matches = { + DMI_MATCH(DMI_BOARD_NAME, "SABERTOOTH X58") + } + }, + { } +}; + /* Minimum time between readings, enforced in order to avoid * hogging the CPU. */ @@ -1302,7 +1318,9 @@ static int atk_probe_if(struct atk_data *data) * analysis of multiple DSDTs indicates that when both interfaces * are present the new one (GGRP/GITM) is not functional. */ - if (data->rtmp_handle && data->rvlt_handle && data->rfan_handle) + if (new_if) + dev_info(dev, "Overriding interface detection\n"); + if (data->rtmp_handle && data->rvlt_handle && data->rfan_handle && !new_if) data->old_interface = true; else if (data->enumerate_handle && data->read_handle && data->write_handle) @@ -1420,6 +1438,9 @@ static int __init atk0110_init(void) return -EBUSY; } + if (dmi_check_system(atk_force_new_if)) + new_if = true; + ret = acpi_bus_register_driver(&atk_driver); if (ret) pr_info("acpi_bus_register_driver failed: %d\n", ret); |