[PATCH v2] dt-bindings: phy: sc8280xp-qmp-pcie: Disallow bifurcation register on Purwa

[Rob Herring (Arm)]

On Wed, 10 Jun 2026 11:45:12 +0200, Konrad Dybcio wrote:
> From: Konrad Dybcio <konrad.dybcio at oss.qualcomm.com>
> 
> Neither of the two Gen4x4 PHYs found on Purwa supports bifurcation.
> The PHY is however physically laid out as if it were to, since there
> are two separate ports (A/B).
> 
> Split out a new if-then block to un-require the bifurcation register
> handle to squash this warning:
> 
> purwa-iot-evk.dtb: phy at 1bd4000 (qcom,x1p42100-qmp-gen4x4-pcie-phy): 'qcom,4ln-config-sel' is a required property
> 
> Fixes: 2e1ffd4c1805 ("dt-bindings: phy: qcom,qmp-pcie: Add X1P42100 PCIe Gen4x4 PHY")
> Reported-by: Rob Herring <robh at kernel.org>
> Closes: https://lore.kernel.org/linux-arm-msm/176857775469.1631885.16133311938753588148.robh@kernel.org/
> Signed-off-by: Konrad Dybcio <konrad.dybcio at oss.qualcomm.com>
> ---
> Changes in v2:
> - Rebase
> - Don't drop the mention of the warning, as it now actually exists in
>   the tree..
> - Link to v1: https://lore.kernel.org/r/20260119-topic-purwa_phy_shutup_warning-v1-1-997a692b31c6@oss.qualcomm.com
> 
> To: Vinod Koul <vkoul at kernel.org>
> To: Neil Armstrong <neil.armstrong at linaro.org>
> To: Rob Herring <robh at kernel.org>
> To: Krzysztof Kozlowski <krzk+dt at kernel.org>
> To: Conor Dooley <conor+dt at kernel.org>
> To: Konrad Dybcio <konrad.dybcio at oss.qualcomm.com>
> Cc: Krzysztof Kozlowski <krzk at kernel.org>
> Cc: linux-arm-msm at vger.kernel.org
> Cc: linux-phy at lists.infradead.org
> Cc: devicetree at vger.kernel.org
> Cc: linux-kernel at vger.kernel.org
> ---
>  .../devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 

Acked-by: Rob Herring (Arm) <robh at kernel.org>