Re: [PATCH v3 6/6] arm64: boot: dts: qcom: pm8150b: Add DTS node for PMIC VBUS booster

Bjorn Andersson
2020-06-21T07:10:46Z

On Wed 17 Jun 11:02 PDT 2020, Wesley Cheng wrote:

> Add the required DTS node for the USB VBUS output regulator, which is
> available on PM8150B. This will provide the VBUS source to connected
> peripherals.
>
> Signed-off-by: Wesley Cheng <wcheng@codeaurora.org>
> ---
> arch/arm64/boot/dts/qcom/pm8150b.dtsi | 6 ++++++
> arch/arm64/boot/dts/qcom/sm8150-mtp.dts | 7 +++++++
> 2 files changed, 13 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/pm8150b.dtsi b/arch/arm64/boot/dts/qcom/pm8150b.dtsi
> index ec44a8bc2f84..b7274d9d7341 100644
> --- a/arch/arm64/boot/dts/qcom/pm8150b.dtsi
> +++ b/arch/arm64/boot/dts/qcom/pm8150b.dtsi
> @@ -22,6 +22,12 @@ power-on@800 {
> status = "disabled";
> };
>
> + qcom,dcdc@1100 {

You shouldn't use "qcom," in node names and whenever possible you should
try to use generic node names. It would also be good to have a label on
this, to allow the regulator to be referenced by a client.

So please make this something like:
pm8150b_vbus: regulator@1100 {

> + compatible = "qcom,pm8150b-vbus-reg";
> + status = "disabled";
> + reg = <0x1100>;
> + };
> +
> qcom,typec@1500 {
> compatible = "qcom,pm8150b-usb-typec";
> status = "disabled";
> diff --git a/arch/arm64/boot/dts/qcom/sm8150-mtp.dts b/arch/arm64/boot/dts/qcom/sm8150-mtp.dts
> index 6c6325c3af59..3845d19893eb 100644
> --- a/arch/arm64/boot/dts/qcom/sm8150-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8150-mtp.dts
> @@ -426,6 +426,13 @@ &usb_1 {
> status = "okay";
> };
>
> +&spmi_bus {
> + pmic@2 {
> + qcom,dcdc@1100 {
> + status = "okay";
> + };
> +};

And then you can enable &pm8150b_vbus here instead.

Regards,
Bjorn

> +
> &usb_1_dwc3 {
> dr_mode = "peripheral";
> };
> --
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