Re: [PATCH] arm64: dts: qcom: x1e80100-hp-x14: drop bogus USB retimer

[Konrad Dybcio]

On 3/28/25 9:41 AM, Johan Hovold wrote:
> Jens reported that the sanity checks added to the new ps883x USB retimer
> driver breaks USB and display on the HP X14. Turns out the X14 only has
> a retimer on one of the ports, but this initially went unnoticed due to
> the missing sanity check (and error handling) in the retimer driver.
> 
> Drop the non-existing retimer from the devicetree to enable the second
> USB port and the display subsystem.
> 
> Note that this also matches the ACPI tables.
> 
> Fixes: 6f18b8d4142c ("arm64: dts: qcom: x1e80100-hp-x14: dt for HP Omnibook X Laptop 14")
> Cc: Jens Glathe <jens.glathe@xxxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> ---
> 
> The devicetree went upstream before the retimer driver so the display
> would already be broken in 6.14 and there's no need to backport this
> one (but it should go into 6.15).
> 
> Note that the SBU mux can be added later when/if someone figures out how
> it is connected.

I am shocked, but this product photo [1] (is this the right laptop? there's a
bunch with similar naming) on the HP website suggests that indeed only one port
has a USB-40Gbps marking on it, with the other type-C only being supposed to do
10Gbps

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad

[1] https://ssl-product-images.www8-hp.com/digmedialib/prodimg/lowres/c08993265.png