6.3 DTSI Document Intro

Qualcomm platforms have a DTS folder. This folder contains setting files such as: apq8074-dragonboard.dtsi. The following shows the part where it is most related to touch features.

focaltech@38 {

    compatible = "focaltech, fts";

    reg = <0x38>;

    interrupt-parent = <&msm_gpio>;

    interrupts = <13 0x8>;

    vdd-supply = <&pm8916_l17>;

    vcc_i2c-supply = <&pm8916_l6>;

    focaltech.name = "fts";

    focaltech.family-id = <0x54>;

    focaltech.reset-gpio = <&msmgpio 16 0x00>;

    focaltech.irq-gpio =&lt;&amp;msm_gpio 13 0x00&gt;;

    focaltech.id1-gpio = &lt;&amp;msm_gpio 109 0x00&gt;;

    focaltech.id2-gpio = &lt;&amp;msm_gpio 114 0x00&gt;;

    focaltech,id3-gpio = &lt;&amp;msm_gpio 121 0x00&gt;;

    focaltech,display-coords = &lt;0 0 480 854&gt;;

    focaltech,panel-coords = &lt;0 0 1080 2000&gt;;

    focaltech,button-map= &lt;70 150 907&gt;;

    focaltech,no-force-update;

    focaltech,i2c-pull-up;

focaltech,group-id = &lt;1&gt;;

focaltech,hard-reset-delay-ms = &lt;20&gt;;

focaltech,soft-reset-delay-ms = &lt;150&gt;;

focaltech,num-max-touches = &lt;10&gt;;

focaltech,fw-name = &quot;FT_Upgrade_App.i&quot;;

focaltech,fw-delay-aa-ms = &lt;50&gt;;

focaltech,fw-delay-55-ms = &lt;30&gt;;

focaltech,fw-upgrade-id1 = &lt;0x79&gt;;

focaltech,fw-upgrade-id2 = &lt;0x03&gt;;

focaltech,fw-delay-readid-ms = &lt;10&gt;;

focaltech,fw-delay-era-flsh-ms = &lt;2000&gt;;

};

This document mainly sets some pins in the platform. (such as reset,irq)