diff options
Diffstat (limited to 'drivers/platform/x86/intel-vbtn.c')
| -rw-r--r-- | drivers/platform/x86/intel-vbtn.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c index 500fae82e12c..4921fc15dc6c 100644 --- a/drivers/platform/x86/intel-vbtn.c +++ b/drivers/platform/x86/intel-vbtn.c @@ -158,12 +158,22 @@ static void detect_tablet_mode(struct platform_device *device) static bool intel_vbtn_has_switches(acpi_handle handle) { const char *chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); + unsigned long chassis_type_int; unsigned long long vgbs; acpi_status status; - if (!(chassis_type && strcmp(chassis_type, "31") == 0)) + if (kstrtoul(chassis_type, 10, &chassis_type_int)) return false; + switch (chassis_type_int) { + case 8: /* Portable */ + case 31: /* Convertible */ + case 32: /* Detachable */ + break; + default: + return false; + } + status = acpi_evaluate_integer(handle, "VGBS", NULL, &vgbs); return ACPI_SUCCESS(status); } |