The laptop contains an embedded controller that provides a set of
features:
- Battery and charger monitoring
- USB Type-C DP alt mode HPD monitoring
- Lid status detection
- Small amount of keyboard configuration*
[*] The keyboard is handled by the same EC but it has a dedicated i2c
bus and is already enabled. This port only provides fn key behavior
configuration.
Add the EC to the device tree and describe the relationship between the
EC-managed type-c port and the SoC DisplayPort.
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Signed-off-by: Nikita Travkin <nikita@xxxxxxx>
---
arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts | 40 +++++++++++++++++++++++-
1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts b/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts
index 5afcb8212f49..3f0d3e33894a 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts
@@ -255,7 +255,25 @@ &i2c2 {
clock-frequency = <400000>;
status = "okay";
- /* embedded-controller@76 */
+ embedded-controller@76 {
+ compatible = "acer,aspire1-ec";
+ reg = <0x76>;
+
+ interrupts-extended = <&tlmm 30 IRQ_TYPE_LEVEL_LOW>;
+
+ pinctrl-0 = <&ec_int_default>;
+ pinctrl-names = "default";
+
+ connector {
+ compatible = "usb-c-connector";
+
+ port {
+ ec_dp_in: endpoint {
+ remote-endpoint = <&mdss_dp_out>;
+ };
+ };
+ };
+ };
};
&i2c4 {
@@ -419,6 +437,19 @@ &mdss {
status = "okay";
};
+&mdss_dp {
+ data-lanes = <0 1>;
+
+ vdda-1p2-supply = <&vreg_l3c_1p2>;
+ vdda-0p9-supply = <&vreg_l4a_0p8>;
+
+ status = "okay";
+};
+
+&mdss_dp_out {
+ remote-endpoint = <&ec_dp_in>;
+};
+
&mdss_dsi0 {
vdda-supply = <&vreg_l3c_1p2>;
status = "okay";
@@ -857,6 +888,13 @@ codec_irq_default: codec-irq-deault-state {
bias-disable;
};
+ ec_int_default: ec-int-default-state {
+ pins = "gpio30";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
edp_bridge_irq_default: edp-bridge-irq-default-state {
pins = "gpio11";
function = "gpio";
--
2.43.2
