1.I2C configuration

1.1 I2C configuration by DCT tool

1.2 amt6797_64_open.dws

<?xml version="1.0" encoding="UTF-8"?>
<!--dct_version="2.2" buid_sn="160113" dws_modification_time="05.29.2016.13:03:38"-->
<dct_cfg>
    <general chip="MT6797">
        <proj>k97_v1</proj>
<module name="i2c">
            <i2c_bus1>
                <speed_kbps>400</speed_kbps>
                <pullPushEn>false</pullPushEn>
            </i2c_bus1>
            <device6>
                <varName>EXT_DISP</varName>
                <channel>I2C_CHANNEL_1</channel>
                <address>0x1d</address>
            </device6>
        </module>
   </general>
</dct_cfg>

<?xml version="1.0" encoding="UTF-8"?>

<dct_cfg>

<i2c_bus1>

<speed_kbps>400</speed_kbps>

<pullPushEn>false</pullPushEn>

</i2c_bus1>

<channel>I2C_CHANNEL_1</channel>

</device6>

</module>

</general>

</dct_cfg>

1.3 cust_i2c.dtsi

&i2c1 {
	#address-cells = <1>;
	#size-cells = <0>;
	clock-frequency = <400000>;
	mediatek,use-open-drain;
	
	ext_disp@1d {
		compatible = "mediatek,ext_disp";
		reg = <0x1d>;
		status = "okay";
	};
	
};

&i2c1 {

#address-cells = <1>;

#size-cells = <0>;

clock-frequency = <400000>;

mediatek,use-open-drain;

ext_disp@1d {

compatible = "mediatek,ext_disp";

reg = <0x1d>;

status = "okay";

};

MediaTek X20 软件开发

1.1 I2C configuration by DCT tool

1.2 amt6797_64_open.dws

1.3 cust_i2c.dtsi