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Lt9611c v12 - #1128

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mohitdsor wants to merge 2 commits into
qualcomm-linux:qcom-6.18.yfrom
mohitdsor:lt9611c-v12
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mohitdsor wants to merge 2 commits into
qualcomm-linux:qcom-6.18.yfrom
mohitdsor:lt9611c-v12

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@mohitdsor

@mohitdsor mohitdsor commented Sep 16, 2026

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Add driver for the Lontium LT9611C(EX/UXD) DSI-to-HDMI bridge chip.

The LT9611C(EX/UXD) is an I2C-controlled bridge that receives single
or dual MIPI DSI input and outputs HDMI. Hardware variants:

  • LT9611C: single DSI, HDMI 1.4 (max 340 MHz TMDS)
  • LT9611EX: dual DSI, HDMI 1.4 (max 340 MHz TMDS)
  • LT9611UXD: dual DSI, HDMI 2.0 (max 600 MHz TMDS)

The driver supports:

  • HDMI audio via I2S/SPDIF
  • EDID read via custom MCU command protocol
  • HPD detection via interrupt
  • Firmware upgrade via sysfs
  • Runtime PM (suspend/resume)

This reverts the previous version of the driver and replaces it with
v12 which incorporates all review feedback received upstream.

Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@oss.qualcomm.com
Signed-off-by: Sunyun Yang syyang@lontium.com
Co-developed-by: Mohit Dsor mohit.dsor@oss.qualcomm.com
Signed-off-by: Mohit Dsor mohit.dsor@oss.qualcomm.com

Upstream: https://lore.kernel.org/dri-devel/20260903-lt9611c-v7-v12-2-9414d2b3bd6d@oss.qualcomm.com/
CRs-Fixed: 4560244

@qswat-orbit-external

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Merge Check Failed: No CR Numbers Found

Error: No Change Request numbers were found.

Please add Change Request numbers to your pull request description in the format CRs-Fixed: 12345 or link GitHub issues that are associated with Change Requests.

@qswat-orbit-external

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Merge Check Failed: No Change Task Found

No associated change tasks found for CR 4560244 on any of the following entities:

Entities:

  • kernel.qli.2.0

CR: 4560244

Please ensure the CR has a change task associated with at least one of the entities for this branch.

mohitdsor and others added 2 commits September 17, 2026 03:04
… HDMI driver"

This reverts commit f1b7693.

Signed-off-by: Mohit Dsor <mohit.dsor@oss.qualcomm.com>
…iver

LT9611C(EX/UXD) is an I2C-controlled chip that Receiver signal/dual port
mipi dsi and output hdmi, differences in hardware features:

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Sunyun Yang <syyang@lontium.com>
Co-developed-by: Mohit Dsor <mohit.dsor@oss.qualcomm.com>
Link: https://patch.msgid.link/20260903-lt9611c-v7-v12-2-9414d2b3bd6d@oss.qualcomm.com
Signed-off-by: Mohit Dsor <mohit.dsor@oss.qualcomm.com>
@qswat-orbit-external

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Merge Check Failed: No Change Task Found

No associated change tasks found for CR 4560244 on any of the following entities:

Entities:

  • kernel.qli.2.0

CR: 4560244

Please ensure the CR has a change task associated with at least one of the entities for this branch.

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