linux-kernel - [PATCH 0/2] wifi: ath: Use static calibration variant table for devicetree platforms

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Message-Id: <20251114-ath-variant-tbl-v1-0-a9adfc49e3f3@oss.qualcomm.com>
Date: Fri, 14 Nov 2025 15:52:18 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
To: Jeff Johnson <jjohnson@...nel.org>,
        Johannes Berg <johannes@...solutions.net>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org,
        ath10k@...ts.infradead.org, ath11k@...ts.infradead.org,
        devicetree@...r.kernel.org, ath12k@...ts.infradead.org,
        Miaoqing Pan <miaoqing.pan@....qualcomm.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
Subject: [PATCH 0/2] wifi: ath: Use static calibration variant table for
 devicetree platforms

Hi,

This series aims to deprecate the usage of "qcom,*calibration-variant"
devicetree property to select the calibration variant for the WLAN devices. This
is necessary for WLAN devices connected using PCI bus, as hardcoding the device
specific information in PCI devicetree node causes the node to be updated every
time when a new device variant is attached to the PCI slot. This approach is not
scalable and causes bad user experience.

So to avoid relying on the "qcom,*calibration-variant" property, this series
introduces a new static calibration variant table based lookup. The newly
introduced helper, ath_get_calib_variant() will parse the model name from
devicetree and use it to do the variant lookup during runtime. The
ath_calib_variant_table[] will hold all the model and calibration variant
entries for the supported devices.

Going forward, new entries will be added to this table to support calibration
variants.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>
---
Manivannan Sadhasivam (2):
      wifi: ath: Use static calibration variant table for devicetree platforms
      dt-bindings: wireless: ath: Deprecate 'qcom,calibration-variant' property

 .../bindings/net/wireless/qcom,ath10k.yaml         |  1 +
 .../bindings/net/wireless/qcom,ath11k-pci.yaml     |  3 +-
 .../bindings/net/wireless/qcom,ath11k.yaml         |  1 +
 .../bindings/net/wireless/qcom,ath12k-wsi.yaml     |  6 +-
 .../bindings/net/wireless/qcom,ipq5332-wifi.yaml   |  2 +-
 drivers/net/wireless/ath/ath.h                     | 98 ++++++++++++++++++++++
 drivers/net/wireless/ath/ath10k/core.c             |  5 ++
 drivers/net/wireless/ath/ath11k/core.c             |  7 ++
 8 files changed, 115 insertions(+), 8 deletions(-)
---
base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787
change-id: 20251114-ath-variant-tbl-22865456a527

Best regards,
-- 
Manivannan Sadhasivam <manivannan.sadhasivam@....qualcomm.com>