add ACPI methods for setting fan speeds

Change-Id: Ib6548c571de300cec476f06f526d4c032e438f34
system76 · Jun 9, 2023 · 2c2f6ac · 2c2f6ac
1 parent b7dc12d
commit 2c2f6ac
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/src/ec/system76/ec/acpi/s76.asl b/src/ec/system76/ec/acpi/s76.asl
@@ -145,6 +145,24 @@ Device (S76D) {
 		Return ((Local1 << 8) | Local0)
 	}
 
+	// Set Fan speed
+	Method (SFD0, 1, Serialized) {
+		If (^^PCI0.LPCB.EC0.ECOK) {
+			^^PCI0.LPCB.EC0.FDAT = Zero
+			^^PCI0.LPCB.EC0.FBUF = Arg0
+			^^PCI0.LPCB.EC0.FCMD = 0xCE
+		}
+	}
+#if CONFIG(EC_SYSTEM76_EC_DGPU)
+	Method (SFD1, 1, Serialized) {
+		If (^^PCI0.LPCB.EC0.ECOK) {
+			^^PCI0.LPCB.EC0.FDAT = Zero
+			^^PCI0.LPCB.EC0.FBUF = Arg0
+			^^PCI0.LPCB.EC0.FCMD = 0xCF
+		}
+	}
+#endif // CONFIG(EC_SYSTEM76_EC_DGPU)
+
 	// Temperature names
 	Method (NTMP, 0, Serialized) {
 		Return (Package() {