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

Marek Vasut
2026-03-12T05:14:03Z

On 3/12/26 5:37 AM, Sudarshan Shetty wrote:
> 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(-)
+CC Luca

You might want to look at recently posted:

[PATCH 2/3] drm/bridge: ti-sn65dsi83: halve horizontal syncs for dual
LVDS output