# Configure

Note

This content is applicable to QCS6490/QCS5430.

Qualcomm Linux display supports the third-party DSI-to-HDMI bridge chip
extensions. The basic configurations required to integrate the bridge
chips are explained as follows:

![../../_images/Reference_bridge_chip_configuration2.png](data:image/png;base64,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)

**Figure : Bridge chip configuration**

## Reference bridge chip configurations

The 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.

To use the reference DSI-to-HDMI bridge chip, see [.dtsi file](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).

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

> 
> 
> Table : Configurations for bridge chip integration
> 
> 
> | Description | DTSI node |
> | --- | --- |
> | Set the DSI-to-HDMI bridge panel as Primary | &sde_dsi {<br>    qcom,dsi-default-panel = <&dsi_ext_bridge_1080p>;<br>    Copy to clipboard |
> | Configure 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>;<br>    Copy to clipboard |
> | Configure panel reset GPIOs for the bridge chip | lt9611: lt,lt9611@2b {<br>    reset-gpios = <&pm7250b_gpios 2 0>;<br>    Copy to clipboard |
> | Configure the DSI host driver in the external bridge mode to<br>work with the third-party DSI-to-HDMI bridge chip | qcom,mdss-dsi-ext-bridge-mode;<br>    Copy to clipboard |

## Set up custom splash logo in UEFI

Setting up the custom splash logo in UEFI is available to licensed developers with authorized access. For more information, see **Configure** section in
[Qualcomm Linux Display Guide -
Addendum](https://docs.qualcomm.com/bundle/resource/topics/80-70015-18A/configure.html).

Last Published: Oct 14, 2024

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