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Message-ID: <878qw6hs4s.fsf@kernel.org> Date: Thu, 05 Sep 2024 21:28:35 +0300 From: Kalle Valo <kvalo@...nel.org> To: Bartosz Golaszewski <brgl@...ev.pl> Cc: "David S . Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Jeff Johnson <jjohnson@...nel.org>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, devicetree@...r.kernel.org, ath11k@...ts.infradead.org, linux-kernel@...r.kernel.org, Bartosz Golaszewski <bartosz.golaszewski@...aro.org> Subject: Re: [PATCH net-next v2] dt-bindings: net: ath11k: document the inputs of the ath11k on WCN6855 Bartosz Golaszewski <brgl@...ev.pl> writes: > On Thu, Sep 5, 2024 at 5:47 PM Kalle Valo <kvalo@...nel.org> wrote: >> >> Bartosz Golaszewski <brgl@...ev.pl> writes: >> >> >> > + - if: >> >> > + properties: >> >> > + compatible: >> >> > + contains: >> >> > + const: pci17cb,1103 >> >> > + then: >> >> > + required: >> >> > + - vddrfacmn-supply >> >> > + - vddaon-supply >> >> > + - vddwlcx-supply >> >> > + - vddwlmx-supply >> >> > + - vddrfa0p8-supply >> >> > + - vddrfa1p2-supply >> >> > + - vddrfa1p8-supply >> >> > + - vddpcie0p9-supply >> >> > + - vddpcie1p8-supply >> >> >> >> Like we discussed before, shouldn't these supplies be optional as not >> >> all modules need them? >> >> >> > >> > The answer is still the same: the ATH11K inside a WCN6855 does - in >> > fact - always need them. The fact that the X13s doesn't define them is >> > bad representation of HW and I'm fixing it in a subsequent DTS patch. >> >> But, like we discussed earlier, M.2 boards don't need these so I think >> this should be optional. >> > > If they are truly dynamic, plug-and-play M.2 boards then they > shouldn't need any description in device-tree. If they are M.2 sockets > that use custom, vendor-specific pins (like what is the case on > sc8280xp-crd and X13s) then the HW they carry needs to be described > correctly. We've discussed that before. Sigh. Please reread the previous discussion. In some cases we need to set qcom,ath11k-calibration-variant even for M.2 boards. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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