lkml.org 
[lkml]   [2018]   [Jul]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 3/3] arm64: dts: qcom: sdm845-mtp: Add nodes for USB
    Date
    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@chromium.org>
    ---

    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 1db4b9735e70..4e14f5f5c2f7 100644
    --- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
    +++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
    @@ -481,6 +481,67 @@
    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 {
    --
    2.18.0.203.gfac676dfb9-goog
    \
     
     \ /
      Last update: 2018-07-11 00:04    [W:2.119 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site