The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm64/qcom/sc7180-trogdor-kingoftown-r0.dts

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    1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
    2 /*
    3  * Google Kingoftown board device tree source
    4  *
    5  * Copyright 2021 Google LLC.
    6  */
    7 
    8 /dts-v1/;
    9 
   10 #include "sc7180-trogdor.dtsi"
   11 #include "sc7180-trogdor-ti-sn65dsi86.dtsi"
   12 #include "sc7180-trogdor-kingoftown.dtsi"
   13 
   14 / {
   15         model = "Google Kingoftown (rev0)";
   16         compatible = "google,kingoftown-rev0", "qcom,sc7180";
   17 };
   18 
   19 /*
   20  * In rev1+, the enable pin of pp3300_fp_tp will be tied to pp1800_l10a
   21  * power rail instead, since kingoftown does not have FP.
   22  */
   23 &pp3300_fp_tp {
   24         gpio = <&tlmm 74 GPIO_ACTIVE_HIGH>;
   25         enable-active-high;
   26 
   27         pinctrl-names = "default";
   28         pinctrl-0 = <&en_fp_rails>;
   29 };
   30 
   31 &tlmm {
   32         en_fp_rails: en-fp-rails {
   33                 pinmux {
   34                         pins = "gpio74";
   35                         function = "gpio";
   36                 };
   37 
   38                 pinconf {
   39                         pins = "gpio74";
   40                         drive-strength = <2>;
   41                         bias-disable;
   42                 };
   43         };
   44 };

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