Re: [PATCH] arm64: dts: qcom: x1e78100-t14s: enable SDX62 modem

[Dennis Gilmore]

Resending it as plain text so it ends up on the lists. My phone does
not allow me to send plain text emails. The modem shows up as device
ID 1eac:1007

Tested-by: Dennis Gilmore <dgilmore@xxxxxxxxxx>


On Fri, Mar 28, 2025 at 7:05 AM Dennis Gilmore <dgilmore@xxxxxxxxxx> wrote:
>
> Tested-by: Dennis Gilmore <dgilmore@xxxxxxxxxx>
>
> It worked fine here, the modem already exists in mhi and the fcc- unlock code is already upstream in ModemManager
>
> Dennis
>
> On Thu, 27 Mar 2025, 03:24 Johan Hovold, <johan+linaro@xxxxxxxxxx> wrote:
>>
>> Enable PCIe5 and the SDX62 modem present on some T14s.
>>
>> Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
>> ---
>>
>> I don't have a modem in my T14s, but this is based on the work I did to
>> enable the modem on the CRD reference design and the T14s schematics.
>>
>> I'm hopping Dennis will be able to help out with testing.
>>
>> Note that we may possibly need a new entry for SDX62 in the MHI driver
>> device id table (mhi_pci_id_table) as well. The output of 'lspci -n'
>> will tell.
>>
>> Johan
>>
>>
>>  .../qcom/x1e78100-lenovo-thinkpad-t14s.dtsi   | 65 +++++++++++++++++++
>>  1 file changed, 65 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
>> index 962fb050c55c..8b3f715bfc0b 100644
>> --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
>> @@ -310,6 +310,22 @@ vph_pwr: regulator-vph-pwr {
>>                 regulator-boot-on;
>>         };
>>
>> +       vreg_wwan: regulator-wwan {
>> +               compatible = "regulator-fixed";
>> +
>> +               regulator-name = "VCC3B_WAN_RCM";
>> +               regulator-min-microvolt = <3300000>;
>> +               regulator-max-microvolt = <3300000>;
>> +
>> +               gpio = <&tlmm 221 GPIO_ACTIVE_HIGH>;
>> +               enable-active-high;
>> +
>> +               pinctrl-0 = <&wwan_sw_en>;
>> +               pinctrl-names = "default";
>> +
>> +               regulator-boot-on;
>> +       };
>> +
>>         sound {
>>                 compatible = "qcom,x1e80100-sndcard";
>>                 model = "X1E80100-LENOVO-Thinkpad-T14s";
>> @@ -1028,6 +1044,25 @@ &pcie4_phy {
>>         status = "okay";
>>  };
>>
>> +&pcie5 {
>> +       perst-gpios = <&tlmm 149 GPIO_ACTIVE_LOW>;
>> +       wake-gpios = <&tlmm 151 GPIO_ACTIVE_LOW>;
>> +
>> +       vddpe-3v3-supply = <&vreg_wwan>;
>> +
>> +       pinctrl-0 = <&pcie5_default>;
>> +       pinctrl-names = "default";
>> +
>> +       status = "okay";
>> +};
>> +
>> +&pcie5_phy {
>> +       vdda-phy-supply = <&vreg_l3i_0p8>;
>> +       vdda-pll-supply = <&vreg_l3e_1p2>;
>> +
>> +       status = "okay";
>> +};
>> +
>>  &pcie6a {
>>         perst-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>;
>>         wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>;
>> @@ -1309,6 +1344,29 @@ wake-n-pins {
>>                 };
>>         };
>>
>> +       pcie5_default: pcie5-default-state {
>> +               clkreq-n-pins {
>> +                       pins = "gpio150";
>> +                       function = "pcie5_clk";
>> +                       drive-strength = <2>;
>> +                       bias-pull-up;
>> +               };
>> +
>> +               perst-n-pins {
>> +                       pins = "gpio149";
>> +                       function = "gpio";
>> +                       drive-strength = <2>;
>> +                       bias-disable;
>> +               };
>> +
>> +               wake-n-pins {
>> +                       pins = "gpio151";
>> +                       function = "gpio";
>> +                       drive-strength = <2>;
>> +                       bias-pull-up;
>> +               };
>> +       };
>> +
>>         pcie6a_default: pcie6a-default-state {
>>                 clkreq-n-pins {
>>                         pins = "gpio153";
>> @@ -1367,6 +1425,13 @@ wcd_default: wcd-reset-n-active-state {
>>                 bias-disable;
>>                 output-low;
>>         };
>> +
>> +       wwan_sw_en: wwan-sw-en-state {
>> +               pins = "gpio221";
>> +               function = "gpio";
>> +               drive-strength = <4>;
>> +               bias-disable;
>> +       };
>>  };
>>
>>  &usb_1_ss0_hsphy {
>> --
>> 2.48.1
>>


-- 
Dennis Gilmore
Senior Manager Systems Enablement OpenShift Development