[PATCH] dt-bindings: wireless: ath12k: allow calibration variant for WCN7850

From: Ernest Van Hoecke

Date: Wed Jul 01 2026 - 11:47:17 EST


From: Ernest Van Hoecke <ernest.vanhoecke@xxxxxxxxxxx>

qcom,calibration-variant selects board-specific calibration data for
systems where the bus and device IDs are not unique.

This is not specific to WSI-capable QCN9274 devices. The WSI binding
already allows the property, so allow it in the WCN7850 PCI binding too.

Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@xxxxxxxxxxx>
---
Document qcom,calibration-variant in the WCN7850 PCI binding. The
generic property is already documented for ath12k WSI devices in
qcom,ath12k-wsi.yaml, and selecting board-specific calibration data is
not specific to WSI-capable QCN9274 designs.

This complements Andrew LaMarche's ath12k driver series, which adds
driver support for reading qcom,calibration-variant from the device tree
and drops the deprecated qcom,ath12k-calibration-variant from the WSI
binding:

https://lore.kernel.org/ath12k/20260630133001.1426824-1-andrewjlamarche@xxxxxxxxx/T/#t

That series makes the generic property effective in the driver while
this patch closes the schema gap for WCN7850 devices.
---
Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
index dc68dd59988f..cf3e1fd99c12 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
@@ -54,6 +54,12 @@ properties:
vddpcie1p8-supply:
description: VDD_PCIE_1P8 supply regulator handle

+ qcom,calibration-variant:
+ $ref: /schemas/types.yaml#/definitions/string
+ description:
+ String to uniquely identify variant of the calibration data for designs
+ with colliding bus and device ids
+
required:
- compatible
- reg

---
base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
change-id: 20260701-ath12k-calibration-variant-b7850f7ffd7c

Best regards,
--
Ernest Van Hoecke <ernest.vanhoecke@xxxxxxxxxxx>