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drm: bridge: ti-sn65dsi83: Improve dual-link LVDS support

Sudarshan Shetty dri-devel linux-devicetree lkml 1 version In review

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  1. v2 Latest2 patches 21 repliesIn review

Changes in v2 from the cover letter

- Introduce ti,dual-link-video-mode DT property
- Add DT binding documentation for the new property
- Update driver to read the DT property and apply dual-link configuration conditionally
- Adjust DSI mode flags when dual-link video mode is enabled
- Update commit messages

Patches in v2 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2dt-bindings: display: bridge: ti,sn65dsi83: Add dual-link video mode propertyDocumentation/devicetree/bindings/display/bridge/ti,sn65dsi83.yaml+9 -04 replies
2/2drm: bridge: ti-sn65dsi83: Add support for dual-link LVDS video modedrivers/gpu/drm/bridge/ti-sn65dsi83.c+48 -46 replies

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Cover letter [PATCH v2 0/2] drm: bridge: ti-sn65dsi83: Improve dual-link LVDS support

Hi all,

This patch series improves dual-link LVDS support in the SN65DSI83 DSI-to-LVDS bridge driver.

Currently the driver programs identical horizontal timing parameters for both single-link and dual-link LVDS modes. According to TI documentation, when operating in dual-link mode the horizontal timing values must be divided by two before being programmed into the device. Without this adjustment, some panels fail to light up or produce corrupted output.

TI also provides recommended register settings for dual-link LVDS operation. This series adds support for an optional DT property ti,dual-link-video-mode that enables the required configuration in the driver.

When the property is present, the driver applies the recommended register settings and uses a simplified DSI video mode configuration to ensure correct dual-link LVDS operation.

Summary:
- Add DT binding for ti,dual-link-video-mode
- Add driver support to enable dual-link LVDS configuration
- Apply recommended register settings for dual-link operation
- Adjust DSI mode flags when dual-link mode is enabled

Changes in v2:
- Introduce ti,dual-link-video-mode DT property
- Add DT binding documentation for the new property
- Update driver to read the DT property and apply dual-link configuration conditionally
- Adjust DSI mode flags when dual-link video mode is enabled
- Update commit messages

Thanks,
Anusha

Sudarshan Shetty (2):
dt-bindings: display: bridge: ti,sn65dsi83: Add dual-link video mode
property
drm: bridge: ti-sn65dsi83: Add support for dual-link LVDS video mode

 .../bindings/display/bridge/ti,sn65dsi83.yaml |  9 ++++
 drivers/gpu/drm/bridge/ti-sn65dsi83.c         | 52 +++++++++++++++++--
 2 files changed, 57 insertions(+), 4 deletions(-)
Signature · 1 line
2.34.1