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Message-ID: <20250105174159.227831-2-mitltlatltl@gmail.com>
Date: Mon, 6 Jan 2025 01:41:55 +0800
From: Pengyu Luo <mitltlatltl@...il.com>
To: Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>,
Hans de Goede <hdegoede@...hat.com>,
Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
Sebastian Reichel <sre@...nel.org>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jean Delvare <jdelvare@...e.com>,
Guenter Roeck <linux@...ck-us.net>
Cc: devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-arm-msm@...r.kernel.org,
platform-driver-x86@...r.kernel.org,
linux-pm@...r.kernel.org,
linux-usb@...r.kernel.org,
linux-hwmon@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Pengyu Luo <mitltlatltl@...il.com>
Subject: [PATCH v2 1/5] dt-bindings: platform: Add Huawei Matebook E Go EC
Add binding for the EC found in the Huawei Matebook E Go and
Huawei Matebook E Go LTE 2-in-1 tablets, the former one is a QS sc8280xp
based tablet, the latter one is QS sc8180x based tablet.
This series has a codename, gaokun. More information about gaokun, please
check https://bugzilla.kernel.org/show_bug.cgi?id=219645
Signed-off-by: Pengyu Luo <mitltlatltl@...il.com>
---
.../bindings/platform/huawei,gaokun-ec.yaml | 127 ++++++++++++++++++
1 file changed, 127 insertions(+)
create mode 100644 Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml
diff --git a/Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml b/Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml
new file mode 100644
index 000000000..149c0cbe4
--- /dev/null
+++ b/Documentation/devicetree/bindings/platform/huawei,gaokun-ec.yaml
@@ -0,0 +1,127 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/platform/huawei,gaokun-ec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Huawei Matebook E Go Embedded Controller
+
+maintainers:
+ - Pengyu Luo <mitltlatltl@...il.com>
+
+description:
+ Different from other Qualcomm Snapdragon sc8180x and sc8280xp-based
+ machines, the Huawei Matebook E Go tablets use embedded controllers
+ while others use a system called PMIC GLink which handles battery,
+ UCSI, USB Type-C DP Alt Mode. In addition, Huawei's implementation
+ also handles additional features, such as charging thresholds, FN
+ lock, smart charging, tablet lid status, thermal sensors, and more.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - huawei,gaokun2
+ - huawei,gaokun3
+ - const: huawei,gaokun-ec
+
+ reg:
+ const: 0x38
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ interrupts:
+ maxItems: 1
+
+patternProperties:
+ '^connector@[01]$':
+ $ref: /schemas/connector/usb-connector.yaml#
+
+ properties:
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |+
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ embedded-controller@38 {
+ compatible = "huawei,gaokun3", "huawei,gaokun-ec";
+ reg = <0x38>;
+
+ interrupts-extended = <&tlmm 107 IRQ_TYPE_LEVEL_LOW>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ connector@0 {
+ compatible = "usb-c-connector";
+ reg = <0>;
+ power-role = "dual";
+ data-role = "dual";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ ucsi0_ss_in: endpoint {
+ remote-endpoint = <&usb_0_qmpphy_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ucsi0_sbu: endpoint {
+ remote-endpoint = <&usb0_sbu_mux>;
+ };
+ };
+ };
+ };
+
+ connector@1 {
+ compatible = "usb-c-connector";
+ reg = <1>;
+ power-role = "dual";
+ data-role = "dual";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ ucsi1_ss_in: endpoint {
+ remote-endpoint = <&usb_1_qmpphy_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ ucsi1_sbu: endpoint {
+ remote-endpoint = <&usb1_sbu_mux>;
+ };
+ };
+ };
+ };
+ };
+ };
--
2.47.1
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