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@quic-vishsain quic-vishsain commented Jan 21, 2026

Reverting V1 patch and updating V3 patch to add support for lontium lt8713sx bridge driver

The lt8713sx is a Type-C/DP1.4 to Type-C/DP1.4/HDMI2.0 converter,
with three configurable DP1.4/HDMI2.0/DP++ output interfaces and
audio output interface.
CRs-Fixed: 4373803

quic-vishsain and others added 8 commits January 21, 2026 17:21
Add bindings for lt8713sx.

Link: https://lore.kernel.org/all/20251228-lt8713sx-bridge-driver-v3-1-9169fbef0e5b@oss.qualcomm.com/
Co-developed-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
The lt8713sx is a Type-C/DP1.4 to Type-C/DP1.4/HDMI2.0 converter,
with three configurable DP1.4/HDMI2.0/DP++ output interfaces and
audio output interface.

Driver is required for firmware upgrade in the bridge chip.

Link: https://lore.kernel.org/all/20251228-lt8713sx-bridge-driver-v3-2-9169fbef0e5b@oss.qualcomm.com/
Co-developed-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
Monaco-evk has LT8713sx which act as DP to 3 DP output
converter. Edp PHY from monaco soc is connected to lt8713sx
as input and output of lt8713sx is connected to 3 mini DP ports.

Two ports are available in mainboard and one port
is available on Mezz board.

lt8713sx is connected to soc over i2c0 and with reset gpio
connected to pin6 of ioexpander5.

Enable the edp nodes from monaco and enable lontium lt8713sx
bridge node.

Link: https://lore.kernel.org/all/20251228-lt8713sx-bridge-linux-for-next-v3-1-3f77ad84d7d1@oss.qualcomm.com/
Co-developed-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Prahlad Valluru <vvalluru@qti.qualcomm.com>
Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
Lontium LT8713sx DP bridge hub can be found on a Qualcomm
Monaco EVK board for converting 1 DP to 3 DP output.

Link: https://lore.kernel.org/all/20251228-lt8713sx-bridge-linux-for-next-v3-2-3f77ad84d7d1@oss.qualcomm.com/
Signed-off-by: Vishnu Saini <vishnu.saini@oss.qualcomm.com>
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