diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 8dfcbb8aff7398a5b75061b52eab15298726dd0e..a2b82c90a6838eaff23a83cd30e741e0c3422e2a 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -120,31 +120,6 @@ static struct acpi_ec { spinlock_t curr_lock; } *boot_ec, *first_ec; -/* - * Some Asus system have exchanged ECDT data/command IO addresses. - */ -static int print_ecdt_error(const struct dmi_system_id *id) -{ - printk(KERN_NOTICE PREFIX "%s detected - " - "ECDT has exchanged control/data I/O address\n", - id->ident); - return 0; -} - -static struct dmi_system_id __cpuinitdata ec_dmi_table[] = { - { - print_ecdt_error, "Asus L4R", { - DMI_MATCH(DMI_BIOS_VERSION, "1008.006"), - DMI_MATCH(DMI_PRODUCT_NAME, "L4R"), - DMI_MATCH(DMI_BOARD_NAME, "L4R") }, NULL}, - { - print_ecdt_error, "Asus M6R", { - DMI_MATCH(DMI_BIOS_VERSION, "0207"), - DMI_MATCH(DMI_PRODUCT_NAME, "M6R"), - DMI_MATCH(DMI_BOARD_NAME, "M6R") }, NULL}, - {}, -}; - /* -------------------------------------------------------------------------- Transaction Management -------------------------------------------------------------------------- */ @@ -983,8 +958,8 @@ static const struct acpi_device_id ec_device_ids[] = { int __init acpi_ec_ecdt_probe(void) { acpi_status status; + struct acpi_ec *saved_ec = NULL; struct acpi_table_ecdt *ecdt_ptr; - acpi_handle dummy; boot_ec = make_acpi_ec(); if (!boot_ec) @@ -998,21 +973,16 @@ int __init acpi_ec_ecdt_probe(void) pr_info(PREFIX "EC description table is found, configuring boot EC\n"); boot_ec->command_addr = ecdt_ptr->control.address; boot_ec->data_addr = ecdt_ptr->data.address; - if (dmi_check_system(ec_dmi_table)) { - /* - * If the board falls into ec_dmi_table, it means - * that ECDT table gives the incorrect command/status - * & data I/O address. Just fix it. - */ - boot_ec->data_addr = ecdt_ptr->control.address; - boot_ec->command_addr = ecdt_ptr->data.address; - } boot_ec->gpe = ecdt_ptr->gpe; boot_ec->handle = ACPI_ROOT_OBJECT; acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle); - /* Add some basic check against completely broken table */ - if (boot_ec->data_addr != boot_ec->command_addr) + /* Don't trust ECDT, which comes from ASUSTek */ + if (!dmi_name_in_vendors("ASUS")) goto install; + saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL); + if (!saved_ec) + return -ENOMEM; + memcpy(&saved_ec, boot_ec, sizeof(saved_ec)); /* fall through */ } /* This workaround is needed only on some broken machines, @@ -1023,12 +993,29 @@ int __init acpi_ec_ecdt_probe(void) /* Check that acpi_get_devices actually find something */ if (ACPI_FAILURE(status) || !boot_ec->handle) goto error; - /* We really need to limit this workaround, the only ASUS, - * which needs it, has fake EC._INI method, so use it as flag. - * Keep boot_ec struct as it will be needed soon. - */ - if (ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI", &dummy))) - return -ENODEV; + if (saved_ec) { + /* try to find good ECDT from ASUSTek */ + if (saved_ec->command_addr != boot_ec->command_addr || + saved_ec->data_addr != boot_ec->data_addr || + saved_ec->gpe != boot_ec->gpe || + saved_ec->handle != boot_ec->handle) + pr_info(PREFIX "ASUSTek keeps feeding us with broken " + "ECDT tables, which are very hard to workaround. " + "Trying to use DSDT EC info instead. Please send " + "output of acpidump to linux-acpi@vger.kernel.org\n"); + kfree(saved_ec); + saved_ec = NULL; + } else { + /* We really need to limit this workaround, the only ASUS, + * which needs it, has fake EC._INI method, so use it as flag. + * Keep boot_ec struct as it will be needed soon. + */ + acpi_handle dummy; + if (!dmi_name_in_vendors("ASUS") || + ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI", + &dummy))) + return -ENODEV; + } install: if (!ec_install_handlers(boot_ec)) { first_ec = boot_ec; diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 073ff09218a9be62ac2acc25601080b4c87976e6..99e6f1f8ea457677e1b989c711e37e1b339e60c3 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -416,7 +416,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) } /* Passive (optional) */ - if (flag & ACPI_TRIPS_PASSIVE) { + if (((flag & ACPI_TRIPS_PASSIVE) && tz->trips.passive.flags.valid) || + (flag == ACPI_TRIPS_INIT)) { valid = tz->trips.passive.flags.valid; if (psv == -1) { status = AE_SUPPORT; @@ -462,8 +463,11 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) memset(&devices, 0, sizeof(struct acpi_handle_list)); status = acpi_evaluate_reference(tz->device->handle, "_PSL", NULL, &devices); - if (ACPI_FAILURE(status)) + if (ACPI_FAILURE(status)) { + printk(KERN_WARNING PREFIX + "Invalid passive threshold\n"); tz->trips.passive.flags.valid = 0; + } else tz->trips.passive.flags.valid = 1; @@ -487,7 +491,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) if (act == -1) break; /* disable all active trip points */ - if (flag & ACPI_TRIPS_ACTIVE) { + if ((flag == ACPI_TRIPS_INIT) || ((flag & ACPI_TRIPS_ACTIVE) && + tz->trips.active[i].flags.valid)) { status = acpi_evaluate_integer(tz->device->handle, name, NULL, &tmp); if (ACPI_FAILURE(status)) { @@ -521,8 +526,11 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) memset(&devices, 0, sizeof(struct acpi_handle_list)); status = acpi_evaluate_reference(tz->device->handle, name, NULL, &devices); - if (ACPI_FAILURE(status)) + if (ACPI_FAILURE(status)) { + printk(KERN_WARNING PREFIX + "Invalid active%d threshold\n", i); tz->trips.active[i].flags.valid = 0; + } else tz->trips.active[i].flags.valid = 1;