linux-kernel - [PATCH v2 5/6] platform/surface: aggregator

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Date:   Thu, 11 Feb 2021 20:46:35 +0100
From:   Maximilian Luz <luzmaximilian@...il.com>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     Maximilian Luz <luzmaximilian@...il.com>,
        Mark Gross <mgross@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/6] platform/surface: aggregator_registry: Add DTX device

Add the detachment system (DTX) SSAM device for the Surface Book 3. This
device is accessible under the base (TC=0x11) subsystem.

Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>
---
 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 913fa5cae705..4c74e80dc34a 100644
--- a/drivers/platform/surface/surface_aggregator_registry.c
+++ b/drivers/platform/surface/surface_aggregator_registry.c
@@ -71,6 +71,12 @@ static const struct software_node ssam_node_tmp_pprof = {
 	.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",
+	.parent = &ssam_node_root,
+};
+
 /* Devices for Surface Book 2. */
 static const struct software_node *ssam_node_group_sb2[] = {
 	&ssam_node_root,
@@ -86,6 +92,7 @@ static const struct software_node *ssam_node_group_sb3[] = {
 	&ssam_node_bat_main,
 	&ssam_node_bat_sb3base,
 	&ssam_node_tmp_pprof,
+	&ssam_node_bas_dtx,
 	NULL,
 };
 
-- 
2.30.0