From 7f543c99f8fe2d554857a1973e6f86a07abf0f63 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Mon, 23 Nov 2020 20:45:41 -0700
Subject: [PATCH] Try to use GPIO PM modes

Change-Id: I97a9ecabf2839e29d00a76db0c5b17db99965ee3
---
 src/mainboard/system76/galp5/acpi/gpio.asl    | 44 +++++++++++++++++++
 .../system76/galp5/acpi/mainboard.asl         |  1 +
 src/mainboard/system76/lemp10/acpi/gpio.asl   | 44 +++++++++++++++++++
 .../system76/lemp10/acpi/mainboard.asl        |  1 +
 4 files changed, 90 insertions(+)
 create mode 100644 src/mainboard/system76/galp5/acpi/gpio.asl
 create mode 100644 src/mainboard/system76/lemp10/acpi/gpio.asl

diff --git a/src/mainboard/system76/galp5/acpi/gpio.asl b/src/mainboard/system76/galp5/acpi/gpio.asl
new file mode 100644
index 0000000000..0e9bb8c1c8
--- /dev/null
+++ b/src/mainboard/system76/galp5/acpi/gpio.asl
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <intelblocks/gpio.h>
+
+Method (PGPM, 1, Serialized)
+{
+	For (Local0 = 0, Local0 < 6, Local0++)
+	{
+		\_SB.PCI0.CGPM (Local0, Arg0)
+	}
+}
+
+/*
+ * Method called from _PTS prior to system sleep state entry
+ * Enables dynamic clock gating for all 5 GPIO communities
+ */
+Method (MPTS, 1, Serialized)
+{
+	PGPM (MISCCFG_ENABLE_GPIO_PM_CONFIG)
+}
+
+/*
+ * Method called from _WAK prior to system sleep state wakeup
+ * Disables dynamic clock gating for all 5 GPIO communities
+ */
+Method (MWAK, 1, Serialized)
+{
+	PGPM (0)
+}
+
+/*
+ * S0ix Entry/Exit Notifications
+ * Called from \_SB.PEPD._DSM
+ */
+Method (MS0X, 1, Serialized)
+{
+	If (Arg0 == 1) {
+		/* S0ix Entry */
+		PGPM (MISCCFG_ENABLE_GPIO_PM_CONFIG)
+	} Else {
+		/* S0ix Exit */
+		PGPM (0)
+	}
+}
diff --git a/src/mainboard/system76/galp5/acpi/mainboard.asl b/src/mainboard/system76/galp5/acpi/mainboard.asl
index c982a9ee4c..d893e22c0f 100644
--- a/src/mainboard/system76/galp5/acpi/mainboard.asl
+++ b/src/mainboard/system76/galp5/acpi/mainboard.asl
@@ -5,6 +5,7 @@
 #include <ec/system76/ec/acpi/ec.asl>
 
 Scope (\_SB) {
+	#include "gpio.asl"
 	#include "sleep.asl"
 	Scope (PCI0) {
 		#include "backlight.asl"
diff --git a/src/mainboard/system76/lemp10/acpi/gpio.asl b/src/mainboard/system76/lemp10/acpi/gpio.asl
new file mode 100644
index 0000000000..0e9bb8c1c8
--- /dev/null
+++ b/src/mainboard/system76/lemp10/acpi/gpio.asl
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <intelblocks/gpio.h>
+
+Method (PGPM, 1, Serialized)
+{
+	For (Local0 = 0, Local0 < 6, Local0++)
+	{
+		\_SB.PCI0.CGPM (Local0, Arg0)
+	}
+}
+
+/*
+ * Method called from _PTS prior to system sleep state entry
+ * Enables dynamic clock gating for all 5 GPIO communities
+ */
+Method (MPTS, 1, Serialized)
+{
+	PGPM (MISCCFG_ENABLE_GPIO_PM_CONFIG)
+}
+
+/*
+ * Method called from _WAK prior to system sleep state wakeup
+ * Disables dynamic clock gating for all 5 GPIO communities
+ */
+Method (MWAK, 1, Serialized)
+{
+	PGPM (0)
+}
+
+/*
+ * S0ix Entry/Exit Notifications
+ * Called from \_SB.PEPD._DSM
+ */
+Method (MS0X, 1, Serialized)
+{
+	If (Arg0 == 1) {
+		/* S0ix Entry */
+		PGPM (MISCCFG_ENABLE_GPIO_PM_CONFIG)
+	} Else {
+		/* S0ix Exit */
+		PGPM (0)
+	}
+}
diff --git a/src/mainboard/system76/lemp10/acpi/mainboard.asl b/src/mainboard/system76/lemp10/acpi/mainboard.asl
index c982a9ee4c..d893e22c0f 100644
--- a/src/mainboard/system76/lemp10/acpi/mainboard.asl
+++ b/src/mainboard/system76/lemp10/acpi/mainboard.asl
@@ -5,6 +5,7 @@
 #include <ec/system76/ec/acpi/ec.asl>
 
 Scope (\_SB) {
+	#include "gpio.asl"
 	#include "sleep.asl"
 	Scope (PCI0) {
 		#include "backlight.asl"