diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/acpi_video.c | 27 | ||||
| -rw-r--r-- | drivers/acpi/button.c | 24 | ||||
| -rw-r--r-- | drivers/acpi/scan.c | 2 |
3 files changed, 49 insertions, 4 deletions
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 76fb96966f7b..2f2e737be0f8 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -2123,6 +2123,25 @@ static int __init intel_opregion_present(void) return opregion; } +static bool dmi_is_desktop(void) +{ + const char *chassis_type; + + chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); + if (!chassis_type) + return false; + + if (!strcmp(chassis_type, "3") || /* 3: Desktop */ + !strcmp(chassis_type, "4") || /* 4: Low Profile Desktop */ + !strcmp(chassis_type, "5") || /* 5: Pizza Box */ + !strcmp(chassis_type, "6") || /* 6: Mini Tower */ + !strcmp(chassis_type, "7") || /* 7: Tower */ + !strcmp(chassis_type, "11")) /* 11: Main Server Chassis */ + return true; + + return false; +} + int acpi_video_register(void) { int ret = 0; @@ -2143,8 +2162,12 @@ int acpi_video_register(void) * win8 ready (where we also prefer the native backlight driver, so * normally the acpi_video code should not register there anyways). */ - if (only_lcd == -1) - only_lcd = acpi_osi_is_win8(); + if (only_lcd == -1) { + if (dmi_is_desktop() && acpi_osi_is_win8()) + only_lcd = true; + else + only_lcd = false; + } dmi_check_system(video_dmi_table); diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index e1eee7a60fad..f1cc4f9d31cd 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -635,4 +635,26 @@ module_param_call(lid_init_state, NULL, 0644); MODULE_PARM_DESC(lid_init_state, "Behavior for reporting LID initial state"); -module_acpi_driver(acpi_button_driver); +static int acpi_button_register_driver(struct acpi_driver *driver) +{ + /* + * Modules such as nouveau.ko and i915.ko have a link time dependency + * on acpi_lid_open(), and would therefore not be loadable on ACPI + * capable kernels booted in non-ACPI mode if the return value of + * acpi_bus_register_driver() is returned from here with ACPI disabled + * when this driver is built as a module. + */ + if (acpi_disabled) + return 0; + + return acpi_bus_register_driver(driver); +} + +static void acpi_button_unregister_driver(struct acpi_driver *driver) +{ + if (!acpi_disabled) + acpi_bus_unregister_driver(driver); +} + +module_driver(acpi_button_driver, acpi_button_register_driver, + acpi_button_unregister_driver); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index cc234e6a6297..970dd87d347c 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2166,10 +2166,10 @@ int __init acpi_scan_init(void) acpi_cmos_rtc_init(); acpi_container_init(); acpi_memory_hotplug_init(); + acpi_watchdog_init(); acpi_pnp_init(); acpi_int340x_thermal_init(); acpi_amba_init(); - acpi_watchdog_init(); acpi_init_lpit(); acpi_scan_add_handler(&generic_device_handler); |