# Configure

Source: [https://docs.qualcomm.com/doc/80-70014-18/topic/configure.html](https://docs.qualcomm.com/doc/80-70014-18/topic/configure.html)

Qualcomm Linux display supports the third-party DSI-to-HDMI bridge chip extensions. The
            basic configurations required to integrate the bridge chips are explained here.
Figure : Bridge chip configuration
                
                ![](data:image/png;base64,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)

### Third-party DSI-to-HDMI bridge chip extensions

LT9611uxc DSI-to-HDMI bridge chip is used in the reference platform. For more
                information on the LT9611uxc DSI-to-HDMI bridge chip, see the Lontium semiconductor
                datasheet at [http://www.lontiumsemi.com](http://www.lontiumsemi.com). Use the reference DSI-to-HDMI bridge chip DTSI file located
                    [here](https://git.codelinaro.org/clo/le/platform/vendor/opensource/display-devicetree/-/blob/display-kernel.qclinux.1.0.r2-rel/display/dsi-panel-ext-bridge-1080p.dtsi?ref_type=heads).

### DSI-to-HDMI advanced features

The advanced features for the bridge chip are as follows: 
- Splash screen is enabled when you power On the device

Note: The splash screen is only visible for one
                            second.
- HPD is supported over DSI-to-HDMI

### Reference bridge chip configurations

The basic configurations that are required to integrate the bridge chips are
                explained as follows:

Table : Configurations for bridge chip integration

| Description | DTSI node |
| --- | --- |
| Set the DSI to the HDMI bridge panel as Primary | &sde_dsi {<br>    qcom,dsi-default-panel = <&dsi_ext_bridge_1080p>;Copy to clipboard |
| Reference power supply entries for the bridge chip | &sde_dsi {<br>    vddio-supply = <&vreg_l8c_1p62>;<br>    vdda-0p9-supply = <&vreg_l10c_0p88>;<br>    vdda-0p9-supply = <&vreg_l10c_0p88>;Copy to clipboard |
| Panel reset GPIO for the bridge chip | lt9611: lt,lt9611@2b { <br>    reset-gpios = <&pm7250b_gpios 2 0>;Copy to clipboard |
| Configure the DSI host driver in the external bridge mode to<br>                                    work with the third-party DSI-to-HDMI bridges | qcom,mdss-dsi-ext-bridge-mode;Copy to clipboard |

Last Published: Jul 16, 2024

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