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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>
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1 changed files with 22 additions and 1 deletions
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@ -13,6 +13,7 @@
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#include <linux/list.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/slab.h>
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#include <linux/dmi.h>
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#include <acpi/acpi.h>
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#include <acpi/acpi.h>
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#include <acpi/acpixf.h>
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#include <acpi/acpixf.h>
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@ -22,6 +23,21 @@
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#define ATK_HID "ATK0110"
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#define ATK_HID "ATK0110"
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static bool new_if;
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module_param(new_if, bool, 0);
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MODULE_PARM_DESC(new_if, "Override detection heuristic and force the use of the new ATK0110 interface");
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static const struct dmi_system_id __initconst atk_force_new_if[] = {
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{
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/* Old interface has broken MCH temp monitoring */
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.ident = "Asus Sabertooth X58",
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.matches = {
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DMI_MATCH(DMI_BOARD_NAME, "SABERTOOTH X58")
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}
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},
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{ }
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};
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/* Minimum time between readings, enforced in order to avoid
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/* Minimum time between readings, enforced in order to avoid
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* hogging the CPU.
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* hogging the CPU.
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*/
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*/
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@ -1302,7 +1318,9 @@ static int atk_probe_if(struct atk_data *data)
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* analysis of multiple DSDTs indicates that when both interfaces
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* analysis of multiple DSDTs indicates that when both interfaces
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* are present the new one (GGRP/GITM) is not functional.
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* are present the new one (GGRP/GITM) is not functional.
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*/
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*/
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if (data->rtmp_handle && data->rvlt_handle && data->rfan_handle)
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if (new_if)
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dev_info(dev, "Overriding interface detection\n");
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if (data->rtmp_handle && data->rvlt_handle && data->rfan_handle && !new_if)
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data->old_interface = true;
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data->old_interface = true;
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else if (data->enumerate_handle && data->read_handle &&
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else if (data->enumerate_handle && data->read_handle &&
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data->write_handle)
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data->write_handle)
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@ -1420,6 +1438,9 @@ static int __init atk0110_init(void)
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return -EBUSY;
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return -EBUSY;
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}
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}
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if (dmi_check_system(atk_force_new_if))
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new_if = true;
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ret = acpi_bus_register_driver(&atk_driver);
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ret = acpi_bus_register_driver(&atk_driver);
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if (ret)
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if (ret)
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pr_info("acpi_bus_register_driver failed: %d\n", ret);
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pr_info("acpi_bus_register_driver failed: %d\n", ret);
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