Re: [PATCH v9 3/3] arm64: dts: qcom: sc8280xp-blackrock: dt definition for WDK2023

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On 12/3/2024 12:37 PM, Jens Glathe wrote:
On 03.12.24 06:08, Krishna Kurapati wrote:

[...]

Although functionally unused, there is one more connector node that
runs between QMPPHY and DWC3 node. For example in [1], please check
"usb_dp_qmpphy_usb_ss_in" and "usb_1_dwc3_ss"

Would be good to check why it is missing and add it further.

[1]:
https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts


I checked, there's an extra endpoint for usb_?_qmpphy_usb_ss_in and
usb_?_qmpphy_dp_in.  usb_?_qmpphy_usb_ss_in  are defined (and "wired")
between port@1 of usb_?_qmpphy and port@1 of usb_?_dwc3, in
sc8280xp.dtsi. On port@2 of the qmpphy is usb_?_qmpphy_dp_in as
endpoint, which is further defined in sc8280xp-microsoft-blackrock.dts
as connecting to mdss0_dp?_out. Maybe that's wrong, it's the same as in
sc8280xp-lenvo-thinkpad-x13s.dts.


You are right.
Ignore my comment, that node is specified in the base dtsi file for sc8280xp.

From usb pov, your code looks good.

Thanks,
Krishna,




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