[PATCH v2 7/8] arm64: dts: qcom: sm8350: add PCIe devices
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Thu Nov 10 06:20:11 PST 2022
On 10/11/2022 13:53, Johan Hovold wrote:
> On Thu, Nov 10, 2022 at 01:33:44PM +0300, Dmitry Baryshkov wrote:
>> Add PCIe0 and PCIe1 (and corresponding PHY) devices found on SM8350
>> platform. The PCIe0 is a 1-lane Gen3 host, PCIe1 is a 2-lane Gen3 host.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
>> ---
>> arch/arm64/boot/dts/qcom/sm8350.dtsi | 246 ++++++++++++++++++++++++++-
>> 1 file changed, 244 insertions(+), 2 deletions(-)
>
>> @@ -1761,6 +1957,52 @@ tlmm: pinctrl at f100000 {
>> gpio-ranges = <&tlmm 0 0 204>;
>> wakeup-parent = <&pdc>;
>>
>> + pcie0_default_state: pcie0-default-state {
>> + perst-pins {
>> + pins = "gpio94";
>> + function = "gpio";
>> + drive-strength = <2>;
>> + bias-pull-down;
>> + };
>> +
>> + clkreq-pins {
>> + pins = "gpio95";
>> + function = "pcie0_clkreqn";
>> + drive-strength = <2>;
>> + bias-pull-up;
>> + };
>> +
>> + wake-pins {
>> + pins = "gpio96";
>> + function = "gpio";
>> + drive-strength = <2>;
>> + bias-pull-up;
>> + };
>> + };
>
> The pinconfig should go in the board file.
Usually yes. However for the PCIe we usually put them into the main
.dtsi. See sm8[124]50.dtsi.
--
With best wishes
Dmitry
More information about the linux-phy
mailing list