Re: [PATCH v9 2/2] dt-bindings: net: wireless: describe the ath12k PCI module

Bartosz Golaszewski
2024-06-06T13:37:56Z

On Thu, Jun 6, 2024 at 3:34 PM Kalle Valo <kvalo@kernel.org> wrote:
>
> Bartosz Golaszewski <brgl@bgdev.pl> writes:
>
> > From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> >
> > Add device-tree bindings for the ATH12K module found in the WCN7850
> > package.
> >
> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> > Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
> > ---
> > .../bindings/net/wireless/qcom,ath12k.yaml | 99 +++++++++++++++++++
> > 1 file changed, 99 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
> > new file mode 100644
> > index 000000000000..1b5884015b15
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath12k.yaml
> > @@ -0,0 +1,99 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +# Copyright (c) 2024 Linaro Limited
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/wireless/qcom,ath12k.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Qualcomm Technologies ath12k wireless devices (PCIe)
> > +
> > +maintainers:
> > + - Jeff Johnson <quic_jjohnson@quicinc.com>
> > + - Kalle Valo <kvalo@kernel.org>
> > +
> > +description:
> > + Qualcomm Technologies IEEE 802.11be PCIe devices.
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - pci17cb,1107 # WCN7850
> > +
> > + reg:
> > + maxItems: 1
> > +
> > + vddaon-supply:
> > + description: VDD_AON supply regulator handle
> > +
> > + vddwlcx-supply:
> > + description: VDD_WLCX supply regulator handle
> > +
> > + vddwlmx-supply:
> > + description: VDD_WLMX supply regulator handle
> > +
> > + vddrfacmn-supply:
> > + description: VDD_RFA_CMN supply regulator handle
> > +
> > + vddrfa0p8-supply:
> > + description: VDD_RFA_0P8 supply regulator handle
> > +
> > + vddrfa1p2-supply:
> > + description: VDD_RFA_1P2 supply regulator handle
> > +
> > + vddrfa1p8-supply:
> > + description: VDD_RFA_1P8 supply regulator handle
> > +
> > + vddpcie0p9-supply:
> > + description: VDD_PCIE_0P9 supply regulator handle
> > +
> > + vddpcie1p8-supply:
> > + description: VDD_PCIE_1P8 supply regulator handle
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - vddaon-supply
> > + - vddwlcx-supply
> > + - vddwlmx-supply
> > + - vddrfacmn-supply
> > + - vddrfa0p8-supply
> > + - vddrfa1p2-supply
> > + - vddrfa1p8-supply
> > + - vddpcie0p9-supply
> > + - vddpcie1p8-supply
>
> Same comment here. To my understanding there are ath12k PCI devices
> which do not need the supplies. But I guess we change this to optional
> later?
>

Sure we can. But "pci17cb,1107" refers to a QCom variant and it always
comes powered by a PMU so these supplies really are required.

Bart

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