From 1e22b0256db8bbe18b48c481e236cfa140f8684b Mon Sep 17 00:00:00 2001
From: Sean Rhodes <sean@starlabs.systems>
Date: Thu, 17 Oct 2024 13:17:29 +0100
Subject: [PATCH] mb/starlabs/starlite_adl: Add SSDT entry for volume keys

Add entries to the SSDT so that the volume keys, which
use the PS2 keyboard interface, are correctly registered.

Change-Id: Ie80491559de50d72bf1ff97fd30c1a74e6b0f7a6
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85695
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
---
 .../starlabs/starlite_adl/mainboard.c          | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/mainboard/starlabs/starlite_adl/mainboard.c b/src/mainboard/starlabs/starlite_adl/mainboard.c
index d394f2579d..99b59253a5 100644
--- a/src/mainboard/starlabs/starlite_adl/mainboard.c
+++ b/src/mainboard/starlabs/starlite_adl/mainboard.c
@@ -1,5 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
+#include <acpi/acpigen_ps2_keybd.h>
 #include <device/device.h>
 #include <soc/ramstage.h>
 #include <option.h>
@@ -22,6 +23,23 @@ static void init_mainboard(void *chip_info)
 	devtree_update();
 }
 
+static void mainboard_fill_ssdt(const struct device *dev)
+{
+	enum ps2_action_key ps2_action_keys[2] = {
+		PS2_KEY_VOL_DOWN,
+		PS2_KEY_VOL_UP
+	};
+	acpigen_ps2_keyboard_dsd("_SB.PCI0.PS2K", ARRAY_SIZE(ps2_action_keys),
+		ps2_action_keys, false, false, false, false, false);
+}
+
+static void enable_mainboard(struct device *dev)
+{
+	dev->ops->acpi_fill_ssdt = mainboard_fill_ssdt;
+}
+
+
 struct chip_operations mainboard_ops = {
 	.init = init_mainboard,
+	.enable_dev = enable_mainboard,
 };