Re: [PATCH 5/5] arm64: dts: qcom: sdm845-mtp: enable PCIe support

[Konrad Dybcio <konrad.dybcio@linaro.org>]

On 26.08.2023 00:08, Dmitry Baryshkov wrote:
> Enable two PCIe hosts support on Qualcomm SDM845 MTP board.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 81 +++++++++++++++++++++++++
>  1 file changed, 81 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> index aec3f358d426..9fb41d2453c8 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> @@ -533,6 +533,36 @@ &mss_pil {
>  	firmware-name = "qcom/sdm845/mba.mbn", "qcom/sdm845/modem.mbn";
>  };
>  
> +&pcie0 {
> +	status = "okay";
last

> +	perst-gpios = <&tlmm 35 GPIO_ACTIVE_LOW>;
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pcie0_default_state>;
flip

[...]

> +	pcie0_default_state: pcie0-default-state {
> +		clkreq-pins {
> +			pins = "gpio36";
> +			function = "pci_e0";
> +			bias-pull-up;
> +		};
> +
> +		perst-n-pins {
> +			pins = "gpio35";
> +			function = "gpio";
> +
> +			drive-strength = <2>;
drop newline

> +			output-low;
> +			bias-pull-down;
flip

Konrad