platform/surface: aggregator_registry: Add support for tablet mode switch on Surface...

Add a KIP subsystem tablet-mode switch device for the Surface Pro 8.
The respective driver for this device provides SW_TABLET_MODE input
events for user-space based on the state of the keyboard cover (e.g.
detached, folded-back, normal/laptop mode).

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20220624183642.910893-4-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c
index bf3303f..8f249df 100644 (file)
--- a/drivers/platform/surface/surface_aggregator_registry.c
+++ b/drivers/platform/surface/surface_aggregator_registry.c
@@ -77,6 +77,12 @@ static const struct software_node ssam_node_tmp_pprof = {
        .parent = &ssam_node_root,
 };
 
+/* Tablet-mode switch via KIP subsystem. */
+static const struct software_node ssam_node_kip_tablet_switch = {
+       .name = "ssam:01:0e:01:00:01",
+       .parent = &ssam_node_root,
+};
+
 /* DTX / detachment-system device (Surface Book 3). */
 static const struct software_node ssam_node_bas_dtx = {
        .name = "ssam:01:11:01:00:00",
@@ -264,11 +270,11 @@ static const struct software_node *ssam_node_group_sp8[] = {
        &ssam_node_bat_ac,
        &ssam_node_bat_main,
        &ssam_node_tmp_pprof,
+       &ssam_node_kip_tablet_switch,
        &ssam_node_hid_kip_keyboard,
        &ssam_node_hid_kip_penstash,
        &ssam_node_hid_kip_touchpad,
        &ssam_node_hid_kip_iid5,
-       /* TODO: Add support for tablet mode switch. */
        NULL,
 };