linux-kernel - Re: [PATCH] arm64: dts: qcom: sa8775p-ride: add WiFi/BT nodes

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Message-ID: <6to5p2dgsu6pvebkmkliojv5kfhnairigd46tmbraimxij7ddu@h6ziv7uwjeeq>
Date: Fri, 6 Sep 2024 03:49:06 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Miaoqing Pan <quic_miaoqing@...cinc.com>, ath11k@...ts.infradead.org
Cc: Dmitry Baryshkov <dbaryshkov@...il.com>, linux-arm-msm@...r.kernel.org, 
	linux-media@...r.kernel.org, agross@...nel.org, andersson@...nel.org, 
	linux-kernel@...r.kernel.org, konrad.dybcio@...aro.org, mchehab@...nel.org, 
	quic_vgarodia@...cinc.com, stanimir.k.varbanov@...il.com, Kalle Valo <kvalo@...nel.org>
Subject: Re: [PATCH] arm64: dts: qcom: sa8775p-ride: add WiFi/BT nodes

On Fri, Sep 06, 2024 at 08:19:28AM GMT, Miaoqing Pan wrote:
> 
> 
> On 9/5/2024 8:49 PM, Dmitry Baryshkov wrote:
> > On Thu, Sep 05, 2024 at 02:48:17PM GMT, Miaoqing Pan wrote:
> > > Add a node for the PMU module of the WCN6855 present on the sa8775p-ride
> > > board. Assign its LDO power outputs to the existing WiFi/Bluetooth module.
> > > 
> > > Signed-off-by: Miaoqing Pan <quic_miaoqing@...cinc.com>
> > > ---
> > >   arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi | 119 +++++++++++++++++++++
> > >   arch/arm64/boot/dts/qcom/sa8775p.dtsi      |   2 +-
> > >   2 files changed, 120 insertions(+), 1 deletion(-)
> > > 
> > > @@ -837,3 +939,20 @@ &usb_2_hsphy {
> > >   &xo_board_clk {
> > >   	clock-frequency = <38400000>;
> > >   };
> > > +
> > > +&pcieport0 {
> > > +	wifi@0 {
> > > +		compatible = "pci17cb,1101";
> > > +		reg = <0x10000 0x0 0x0 0x0 0x0>;
> > > +
> > > +		vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
> > > +		vddaon-supply = <&vreg_pmu_aon_0p59>;
> > > +		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
> > > +		vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
> > > +		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
> > > +		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
> > > +		vddrfa1p7-supply = <&vreg_pmu_rfa_1p7>;
> > > +		vddpcie0p9-supply = <&vreg_pmu_pcie_0p9>;
> > > +		vddpcie1p8-supply = <&vreg_pmu_pcie_1p8>;
> > 
> > Please add
> > 
> > qcom,ath11k-calibration-variant = "name";
> 
> No need, here the WiFi node is for 'drivers/pci/pwrctl', not ath11k driver.

NAK, nodes describe hardware, not drivers. And we have had enough issues
with the WCN wifi having collisions on the board-id / chip-id / etc.

Maybe we should make calibration-data required for the DT-based systems?
Kalle, WDYT?

-- 
With best wishes
Dmitry