On 21.08.25 15:53, Neil Armstrong wrote:
The Thinkpad T14s embeds a transparent 4lanes DP->HDMI transceiver
connected to the third QMP Combo PHY 4 lanes.
[...]
.../dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 44 ++++++++++++++++++++++
1 file changed, 44 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 4cf61c2a34e31233b1adc93332bcabef22de3f86..5b62b8c3123633360f249e3ecdc8ea23f44e8e09 100644
--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
[...]
+&mdss_dp2 {
+ status = "okay";
+};
+
+&mdss_dp2_out {
+ data-lanes = <0 1 2 3>;
+};
+
Hi Neil,
shouldn't mdss_dp2_out also have the link-frequencies property?
+ link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000
8100000000>;
Or is it something the bridge already negotiates?
with best regards
Jens
