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path: root/drivers/acpi/acpi_video.c
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Diffstat (limited to 'drivers/acpi/acpi_video.c')
-rw-r--r--drivers/acpi/acpi_video.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 667dc5c86fef..ea0573176894 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -2069,21 +2069,29 @@ static int __init intel_opregion_present(void)
return opregion;
}
+/* Check if the chassis-type indicates there is no builtin LCD panel */
static bool dmi_is_desktop(void)
{
const char *chassis_type;
+ unsigned long 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 */
+ if (kstrtoul(chassis_type, 10, &type) != 0)
+ return false;
+
+ switch (type) {
+ case 0x03: /* Desktop */
+ case 0x04: /* Low Profile Desktop */
+ case 0x05: /* Pizza Box */
+ case 0x06: /* Mini Tower */
+ case 0x07: /* Tower */
+ case 0x10: /* Lunch Box */
+ case 0x11: /* Main Server Chassis */
return true;
+ }
return false;
}