On 22.08.2024 4:56 PM, Johan Hovold wrote:
> On Tue, Aug 13, 2024 at 09:06:36PM +0200, Bartosz Golaszewski wrote:
>> From: Konrad Dybcio <konradybcio@xxxxxxxxxx>
>>
>> Add nodes for the WCN6855 PMU, the WLAN module and relevant regulators
>> and pin functions to enable wifi support on sc8280xp-crd.
>
> What are you guys smoking? The Wi-Fi has been enabled on the CRD since
> 6.2 and commit d907fe5acbf1 ("arm64: dts: qcom: sc8280xp-crd: enable
> WiFi controller").
Smells like copypasta..
>
>> Signed-off-by: Konrad Dybcio <konradybcio@xxxxxxxxxx>
>> [Bartosz:
>> - write the commit message,
>> - rebase Konrad's commit,
>> - fix one of the supplies' name]
>> Co-developed-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>> ---
>> arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 112 ++++++++++++++++++++++
>> 1 file changed, 112 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
>> index 6020582b0a59..57efeefbc89e 100644
>> --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
>> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
>> @@ -177,6 +177,17 @@ vreg_misc_3p3: regulator-misc-3p3 {
>> regulator-always-on;
>> };
>>
>> + vreg_s10b: regulator-s10b {
>> + compatible = "regulator-fixed";
>
> I don't think this is a fixed regulator.
It effectively is
>
>> +
>> + regulator-name = "VREG_S10B";
>> + regulator-min-microvolt = <1800000>;
>> + regulator-max-microvolt = <1800000>;
>> +
>> + regulator-always-on;
>> + regulator-boot-on;
>> + };
>> +
>> vreg_wlan: regulator-wlan {
>> compatible = "regulator-fixed";
>>
>
>> +&pcie4_port0 {
>> + wifi@0 {
>> + compatible = "pci17cb,1103";
>> + reg = <0x10000 0x0 0x0 0x0 0x0>;
>> +
>> + vddrfacmn-supply = <&vreg_pmu_rfa_cmn_0p8>;
>> + vddaon-supply = <&vreg_pmu_aon_0p8>;
>> + vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
>> + vddwlmx-supply = <&vreg_pmu_wlmx_0p8>;
>> + vddpcie1p8-supply = <&vreg_pmu_pcie_1p8>;
>> + vddpcie0p9-supply = <&vreg_pmu_pcie_0p9>;
>> + vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
>> + vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
>> + vddrfa1p8-supply = <&vreg_pmu_rfa_1p7>;
>> +
>> + qcom,ath11k-calibration-variant = "LE_X13S";
>
> This is not the right calibration variant either. In fact, Qualcomm has
> not yet released any calibration data for this CRD yet:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=216036
>
> I use a patch like this locally, but we shouldn't merge this upstream.
Agreed
>
>> + wlan_en: wlan-en-state {
>> + pins = "gpio134";
>> + function = "gpio";
>> + drive-strength = <8>;
>
> Why increase the drive strength?
This is what's used on Windows, for lack of a better idea, not sure
if this is actually necessary
Konrad
