2022-06-24 18:45:08

by Maximilian Luz

[permalink] [raw]
Subject: [PATCH 4/4] platform/surface: aggregator_registry: Add support for tablet mode switch on Surface Laptop Studio

Add a POS subsystem tablet-mode switch device for the Surface Laptop
Studio. The respective driver for this device provides SW_TABLET_MODE
input events for user-space based on the posture of the screen.

Signed-off-by: Maximilian Luz <[email protected]>
---
drivers/platform/surface/surface_aggregator_registry.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c
index 8f249df673a4..f1c5905f1c16 100644
--- a/drivers/platform/surface/surface_aggregator_registry.c
+++ b/drivers/platform/surface/surface_aggregator_registry.c
@@ -191,6 +191,12 @@ static const struct software_node ssam_node_hid_kip_iid5 = {
.parent = &ssam_node_hub_kip,
};

+/* Tablet-mode switch via POS subsystem. */
+static const struct software_node ssam_node_pos_tablet_switch = {
+ .name = "ssam:01:26:01:00:01",
+ .parent = &ssam_node_root,
+};
+
/*
* Devices for 5th- and 6th-generations models:
* - Surface Book 2,
@@ -237,6 +243,7 @@ static const struct software_node *ssam_node_group_sls[] = {
&ssam_node_bat_ac,
&ssam_node_bat_main,
&ssam_node_tmp_pprof,
+ &ssam_node_pos_tablet_switch,
&ssam_node_hid_tid1_keyboard,
&ssam_node_hid_tid1_penstash,
&ssam_node_hid_tid1_touchpad,
--
2.36.1