On Wed 22 Aug 10:36 PDT 2018, Douglas Anderson wrote:
> Set the various nodes to "okay" and hook up the regulators.
>
> NOTE: For now the main USB port (the one that goes out the Type C
> connector) is forced to host. Eventually someone will need to get the
> Type C detection hooked up and get this all integrated with the
> PMI8998 PMIC. The reason for forcing to "host" in the meantime is
> that this will leave us with one "host" and one "peripheral" port.
>
> In order for host mode this to work, we assume that the bootloader
> left things configured enough for us. Apparently the magic for that
> is is to do these writes on pmi8998:
> - pm_comm_write_byte(2, 0x1153, 0x2C, 0);
> - pm_comm_write_byte(2, 0x1152, 0x07, 0);
> - pm_comm_write_byte(2, 0x1140, 0x00, 0);
> - pm_comm_write_byte(2, 0x1140, 0x01, 0);
>
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
>
> Changes in v3: None
> Changes in v2: None
>
> arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 61 +++++++++++++++++++++++++
> 1 file changed, 61 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> index ef53c4ae60b0..eedfaf8922e2 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> @@ -356,6 +356,67 @@
> status = "okay";
> };
>
> +&usb_1 {
> + status = "okay";
> +};
> +
> +&usb_1_dwc3 {
> + /* Until we have Type C hooked up we'll force this as host. */
> + dr_mode = "host";
> +};
> +
> +&usb_1_hsphy {
> + status = "okay";
> +
> + vdd-supply = <&vdda_usb1_ss_core>;
> + vdda-pll-supply = <&vdda_qusb_hs0_1p8>;
> + vdda-phy-dpdm-supply = <&vdda_qusb_hs0_3p1>;
> +
> + qcom,imp-res-offset-value = <8>;
> + qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_21_6_MA>;
> + qcom,preemphasis-level = <QUSB2_V2_PREEMPHASIS_5_PERCENT>;
> + qcom,preemphasis-width = <QUSB2_V2_PREEMPHASIS_WIDTH_HALF_BIT>;
> +};
> +
> +&usb_1_qmpphy {
> + status = "okay";
> +
> + vdda-phy-supply = <&vdda_usb1_ss_1p2>;
> + vdda-pll-supply = <&vdda_usb1_ss_core>;
> +};
> +
> +&usb_2 {
> + status = "okay";
> +};
> +
> +&usb_2_dwc3 {
> + /*
> + * Though the USB block on SDM845 can support host, there's no vbus
> + * signal for this port on MTP. Thus (unless you have a non-compliant
> + * hub that works without vbus) the only sensible thing is to force
> + * peripheral mode.
> + */
> + dr_mode = "peripheral";
> +};
> +
> +&usb_2_hsphy {
> + status = "okay";
> +
> + vdd-supply = <&vdda_usb2_ss_core>;
> + vdda-pll-supply = <&vdda_qusb_hs0_1p8>;
> + vdda-phy-dpdm-supply = <&vdda_qusb_hs0_3p1>;
> +
> + qcom,imp-res-offset-value = <8>;
> + qcom,hstx-trim-value = <QUSB2_V2_HSTX_TRIM_22_8_MA>;
> +};
> +
> +&usb_2_qmpphy {
> + status = "okay";
> +
> + vdda-phy-supply = <&vdda_usb2_ss_1p2>;
> + vdda-pll-supply = <&vdda_usb2_ss_core>;
> +};
> +
> /* PINCTRL - additions to nodes defined in sdm845.dtsi */
>
> &qup_i2c10_default {
> --
> 2.18.0.1017.ga543ac7ca45-goog
>
