Commit 4f042e40 authored by Maximilian Luz's avatar Maximilian Luz Committed by Hans de Goede
Browse files

platform/surface: aggregator_registry: Add support for Surface Laptop Studio 



Add support for the Surface Laptop Studio.

In contrast to previous Surface Laptop models, this one has its HID
devices attached to target ID 1 (instead of 2). It also has a couple
more of them, including a new notifier for when the pen is stashed /
taken out of its place, a "Sys Control" device, and two other
unidentified HID devices with unknown usages.

Battery and performance profile interfaces remain the same.

Cc: stable@vger.kernel.org # 5.14+
Signed-off-by: default avatarMaximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20211021130904.862610-2-luzmaximilian@gmail.com


Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent ef51b9a5

drivers/platform/surface/surface_aggregator_registry.c

+54 −0
Original line number Diff line number Diff line
@@ -77,6 +77,42 @@ static const struct software_node ssam_node_bas_dtx = { 
	.parent = &ssam_node_root,

};



/* HID keyboard (TID1). */

static const struct software_node ssam_node_hid_tid1_keyboard = {

	.name = "ssam:01:15:01:01:00",

	.parent = &ssam_node_root,

};



/* HID pen stash (TID1; pen taken / stashed away evens). */

static const struct software_node ssam_node_hid_tid1_penstash = {

	.name = "ssam:01:15:01:02:00",

	.parent = &ssam_node_root,

};



/* HID touchpad (TID1). */

static const struct software_node ssam_node_hid_tid1_touchpad = {

	.name = "ssam:01:15:01:03:00",

	.parent = &ssam_node_root,

};



/* HID device instance 6 (TID1, unknown HID device). */

static const struct software_node ssam_node_hid_tid1_iid6 = {

	.name = "ssam:01:15:01:06:00",

	.parent = &ssam_node_root,

};



/* HID device instance 7 (TID1, unknown HID device). */

static const struct software_node ssam_node_hid_tid1_iid7 = {

	.name = "ssam:01:15:01:07:00",

	.parent = &ssam_node_root,

};



/* HID system controls (TID1). */

static const struct software_node ssam_node_hid_tid1_sysctrl = {

	.name = "ssam:01:15:01:08:00",

	.parent = &ssam_node_root,

};



/* HID keyboard. */

static const struct software_node ssam_node_hid_main_keyboard = {

	.name = "ssam:01:15:02:01:00",
@@ -159,6 +195,21 @@ static const struct software_node *ssam_node_group_sl3[] = { 
	NULL,

};



/* Devices for Surface Laptop Studio. */

static const struct software_node *ssam_node_group_sls[] = {

	&ssam_node_root,

	&ssam_node_bat_ac,

	&ssam_node_bat_main,

	&ssam_node_tmp_pprof,

	&ssam_node_hid_tid1_keyboard,

	&ssam_node_hid_tid1_penstash,

	&ssam_node_hid_tid1_touchpad,

	&ssam_node_hid_tid1_iid6,

	&ssam_node_hid_tid1_iid7,

	&ssam_node_hid_tid1_sysctrl,

	NULL,

};



/* Devices for Surface Laptop Go. */

static const struct software_node *ssam_node_group_slg1[] = {

	&ssam_node_root,
@@ -507,6 +558,9 @@ static const struct acpi_device_id ssam_platform_hub_match[] = { 
	/* Surface Laptop Go 1 */

	{ "MSHW0118", (unsigned long)ssam_node_group_slg1 },



	/* Surface Laptop Studio */

	{ "MSHW0123", (unsigned long)ssam_node_group_sls },



	{ },

};

MODULE_DEVICE_TABLE(acpi, ssam_platform_hub_match);