platform/surface: SAM: Add support for Surface Pro 12in

Add a SAM client device node group and registry entry for the
Microsoft Surface Pro, 12-inch with Snapdragon.

This set enables the use of the following devices.
1: cover keyboard
2: cover touchpad
3: pen stash events.

The battery info and charger info devices have been
purposefully omitted as they are also reported by
other drivers and cause conflicts.

Signed-off-by: Harrison Vanderbyl <harrison.vanderbyl@gmail.com>
Link: https://patch.msgid.link/ab458aadea651396d9ea7629419a32dc7510c593.1778822464.git.harrison.vanderbyl@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c
index f0881edfb616100de8d085cb2810fc8283b921b7..d37a7e4c6b02a6828f4df9afe022df6d9e0b624e 100644 (file)
--- a/drivers/platform/surface/surface_aggregator_registry.c
+++ b/drivers/platform/surface/surface_aggregator_registry.c
@@ -420,6 +420,19 @@ static const struct software_node *ssam_node_group_sp11[] = {
        NULL,
 };
 
+/* Devices for Surface Pro 12" first edition (ARM/QCOM) */
+static const struct software_node *ssam_node_group_sp12in[] = {
+       &ssam_node_root,
+       &ssam_node_hub_kip,
+       &ssam_node_tmp_sensors,
+       &ssam_node_hid_kip_keyboard,
+       &ssam_node_hid_sam_penstash,
+       &ssam_node_hid_kip_touchpad,
+       &ssam_node_hid_kip_fwupd,
+       &ssam_node_pos_tablet_switch,
+       NULL,
+};
+
 /* -- SSAM platform/meta-hub driver. ---------------------------------------- */
 
 static const struct acpi_device_id ssam_platform_hub_acpi_match[] = {
@@ -498,6 +511,8 @@ static const struct of_device_id ssam_platform_hub_of_match[] __maybe_unused = {
        { .compatible = "microsoft,arcata", (void *)ssam_node_group_sp9_5g },
        /* Surface Pro 11 (ARM/QCOM) */
        { .compatible = "microsoft,denali", (void *)ssam_node_group_sp11 },
+       /* Surface Pro 12in First Edition (ARM/QCOM) */
+       { .compatible = "microsoft,surface-pro-12in", (void *)ssam_node_group_sp12in },
        /* Surface Laptop 7 */
        { .compatible = "microsoft,romulus13", (void *)ssam_node_group_sl7 },
        { .compatible = "microsoft,romulus15", (void *)ssam_node_group_sl7 },