Commit 17590927 authored by Maximilian Luz's avatar Maximilian Luz Committed by Hans de Goede
Browse files

platform/surface: aggregator_registry: Add battery subsystem devices 



Add battery subsystem (TC=0x02) devices (battery and AC) to the SSAM
device registry. These devices need to be registered for 7th-generation
Surface models. On 5th- and 6th-generation models, these devices are
handled via the standard ACPI battery/AC interface, which in turn
accesses the same SSAM interface via the Surface ACPI Notify (SAN)
driver.

Signed-off-by: default avatarMaximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20210212115439.1525216-4-luzmaximilian@gmail.com


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent 797e7856

drivers/platform/surface/surface_aggregator_registry.c

+27 −0
Original line number Diff line number Diff line
@@ -47,6 +47,24 @@ static const struct software_node ssam_node_hub_base = { 
	.parent = &ssam_node_root,

};



/* AC adapter. */

static const struct software_node ssam_node_bat_ac = {

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

	.parent = &ssam_node_root,

};



/* Primary battery. */

static const struct software_node ssam_node_bat_main = {

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

	.parent = &ssam_node_root,

};



/* Secondary battery (Surface Book 3). */

static const struct software_node ssam_node_bat_sb3base = {

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

	.parent = &ssam_node_hub_base,

};



/* Devices for Surface Book 2. */

static const struct software_node *ssam_node_group_sb2[] = {

	&ssam_node_root,
@@ -57,6 +75,9 @@ static const struct software_node *ssam_node_group_sb2[] = { 
static const struct software_node *ssam_node_group_sb3[] = {

	&ssam_node_root,

	&ssam_node_hub_base,

	&ssam_node_bat_ac,

	&ssam_node_bat_main,

	&ssam_node_bat_sb3base,

	NULL,

};
@@ -75,12 +96,16 @@ static const struct software_node *ssam_node_group_sl2[] = { 
/* Devices for Surface Laptop 3. */

static const struct software_node *ssam_node_group_sl3[] = {

	&ssam_node_root,

	&ssam_node_bat_ac,

	&ssam_node_bat_main,

	NULL,

};



/* Devices for Surface Laptop Go. */

static const struct software_node *ssam_node_group_slg1[] = {

	&ssam_node_root,

	&ssam_node_bat_ac,

	&ssam_node_bat_main,

	NULL,

};
@@ -99,6 +124,8 @@ static const struct software_node *ssam_node_group_sp6[] = { 
/* Devices for Surface Pro 7. */

static const struct software_node *ssam_node_group_sp7[] = {

	&ssam_node_root,

	&ssam_node_bat_ac,

	&ssam_node_bat_main,

	NULL,

};