Re: [PATCH v2] dt-bindings: wireless: ath12k: allow calibration variant for WCN7850
From: Rob Herring (Arm)
Date: Fri Oct 30 2026 - 10:57:25 EST
On Mon, 07 Sep 2026 16:17:20 +0200, Ernest Van Hoecke wrote:
> From: Ernest Van Hoecke <ernest.vanhoecke@xxxxxxxxxxx>
>
> qcom,calibration-variant is the generic Qualcomm Wi-Fi DT property for
> selecting board-specific calibration data when the device identity alone
> is ambiguous.
>
> Commit 06cca100ad08 ("wifi: ath12k: support calibration-variant from
> device tree") implemented support for this property in the ath12k
> driver.
>
> WCN7850 can be used in systems where the PCI device ID and machine
> compatible are identical across product variants, or across regions with
> different regulations. For regulatory changes, the hardware description
> does not change, but the vendor-provided calibration data can differ. In
> that case neither the PCI identity nor the machine compatible can
> identify the required data, so DT needs an explicit calibration variant.
>
> The ath10k, ath11k and ath12k WSI bindings already allow this generic
> property for the same class of board-data selection. Allow it for
> WCN7850 PCIe devices as well.
>
> Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@xxxxxxxxxxx>
> ---
> Changes in v2:
> - Rebased
> - Updated commit message
> - Link to v1: https://lore.kernel.org/r/20260701-ath12k-calibration-variant-v1-1-d3eddaabf026@xxxxxxxxxxx
> ---
> Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml | 6 ++++++
> 1 file changed, 6 insertions(+)
>
Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
Sorry, not sure why this wasn't showing up for me. You may want to
resend it in case it is not in wireless queue.
Rob