linux-kernel - [PATCH] platform/surface: gpe: Add support for Surface Laptop Studio

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Message-Id: <20211021111053.564133-1-luzmaximilian@gmail.com>
Date:   Thu, 21 Oct 2021 13:10:53 +0200
From:   Maximilian Luz <luzmaximilian@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Maximilian Luz <luzmaximilian@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] platform/surface: gpe: Add support for Surface Laptop Studio

The new Surface Laptop Studio uses GPEs for lid events as well. Add an
entry for that so that the lid can be used to wake the device.

Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>
---
 drivers/platform/surface/surface_gpe.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/platform/surface/surface_gpe.c b/drivers/platform/surface/surface_gpe.c
index 86f6991b1215..c1775db29efb 100644
--- a/drivers/platform/surface/surface_gpe.c
+++ b/drivers/platform/surface/surface_gpe.c
@@ -26,6 +26,11 @@ static const struct property_entry lid_device_props_l17[] = {
 	{},
 };
 
+static const struct property_entry lid_device_props_l4B[] = {
+	PROPERTY_ENTRY_U32("gpe", 0x4B),
+	{},
+};
+
 static const struct property_entry lid_device_props_l4D[] = {
 	PROPERTY_ENTRY_U32("gpe", 0x4D),
 	{},
@@ -158,6 +163,14 @@ static const struct dmi_system_id dmi_lid_device_table[] = {
 		},
 		.driver_data = (void *)lid_device_props_l4D,
 	},
+	{
+		.ident = "Surface Laptop Studio",
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Surface Laptop Studio"),
+		},
+		.driver_data = (void *)lid_device_props_l4B,
+	},
 	{ }
 };
 
-- 
2.33.1