platform/x86: alienware-wmi: lightbar LED support for Dell Inspiron 5675

Inspiron 5675 lightbar compatible with WMI interface on alienware,
the difference lies in the zone number and color control.
Add Inspiron 5675 DMI quirks to detect by dmi_check_system().

Signed-off-by: Chang Liu <chang_liu4@dell.com>
Acked-by: Mario Limonciello <mario.limonciello@dell.com>
[andy: massaged commit message]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

drivers/platform/x86/alienware-wmi.c

@@ -68,6 +68,14 @@ struct quirk_entry {
 
 static struct quirk_entry *quirks;
 
+
+static struct quirk_entry quirk_inspiron5675 = {
+	.num_zones = 2,
+	.hdmi_mux = 0,
+	.amplifier = 0,
+	.deepslp = 0,
+};
+
 static struct quirk_entry quirk_unknown = {
 	.num_zones = 2,
 	.hdmi_mux = 0,
@@ -171,6 +179,15 @@ static const struct dmi_system_id alienware_quirks[] __initconst = {
 		     },
 	 .driver_data = &quirk_asm201,
 	 },
+	 {
+	 .callback = dmi_matched,
+	 .ident = "Dell Inc. Inspiron 5675",
+	 .matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5675"),
+		     },
+	 .driver_data = &quirk_inspiron5675,
+	 },
 	{}
 };