The Thinkpad T14s embeds a transparent 4lanes DP->HDMI transceiver
connected to the third QMP Combo PHY 4 lanes.
Add all the data routing, disable mode switching and specify the
QMP Combo PHY should be in DP-Only mode to route the 4 lanes to
the underlying DP phy.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
.../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 82 ++++++++++++++++++++++
1 file changed, 82 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
index 23213b0d9582822e9503e4acf18c62d5c8c7867d..077aa71e79b548cb1f7c76d297a6afae717f7663 100644
--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
@@ -9,6 +9,7 @@
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/gpio-keys.h>
#include <dt-bindings/input/input.h>
+#include <dt-bindings/phy/phy.h>
#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
@@ -62,6 +63,45 @@ switch-lid {
};
};
+ hdmi-bridge {
+ compatible = "realtek,rtd2171";
+
+ pinctrl-0 = <&hdmi_hpd_default>;
+ pinctrl-names = "default";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ hdmi_bridge_dp_in: endpoint {
+ remote-endpoint = <&usb_1_ss2_qmpphy_out_dp>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ hdmi_bridge_tmds_out: endpoint {
+ remote-endpoint = <&hdmi_con>;
+ };
+ };
+ };
+ };
+
+ hdmi-connector {
+ compatible = "hdmi-connector";
+ type = "a";
+
+ port {
+ hdmi_con: endpoint {
+ remote-endpoint = <&hdmi_bridge_tmds_out>;
+ };
+ };
+ };
+
pmic-glink {
compatible = "qcom,x1e80100-pmic-glink",
"qcom,sm8550-pmic-glink",
@@ -1005,6 +1045,14 @@ &mdss_dp1_out {
link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
};
+&mdss_dp2 {
+ status = "okay";
+};
+
+&mdss_dp2_out {
+ link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+};
+
&mdss_dp3 {
/delete-property/ #sound-dai-cells;
@@ -1264,6 +1312,12 @@ &tlmm {
<72 2>, /* Secure EC I2C connection (?) */
<238 1>; /* UFS Reset */
+ hdmi_hpd_default: hdmi-hpd-default-state {
+ pins = "gpio126";
+ function = "usb2_dp";
+ bias-disable;
+ };
+
eusb3_reset_n: eusb3-reset-n-state {
pins = "gpio6";
function = "gpio";
@@ -1487,6 +1541,34 @@ &usb_1_ss0_qmpphy_out {
remote-endpoint = <&retimer_ss0_ss_in>;
};
+&usb_1_ss2_qmpphy {
+ vdda-phy-supply = <&vreg_l2j_1p2>;
+ vdda-pll-supply = <&vreg_l2d_0p9>;
+
+ /delete-property/ mode-switch;
+ /delete-property/ orientation-switch;
+
+ status = "okay";
+
+ ports {
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /delete-node/ endpoint;
+
+ usb_1_ss2_qmpphy_out_dp: endpoint@0 {
+ reg = <0>;
+
+ data-lanes = <0 1 2 3>;
+ remote-endpoint = <&hdmi_bridge_dp_in>;
+ };
+
+ /* No USB3 lanes connected */
+ };
+ };
+};
+
&usb_1_ss1_hsphy {
vdd-supply = <&vreg_l3j_0p8>;
vdda12-supply = <&vreg_l2j_1p2>;
--
2.34.1