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| author | Fabio Estevam <festevam@nabladev.com> | 2026-01-21 02:19:29 +0300 |
|---|---|---|
| committer | Liu Ying <victor.liu@nxp.com> | 2026-01-28 06:23:19 +0300 |
| commit | 2ae03ce28679e45dc3c5cb7b93a8507edfe313b0 (patch) | |
| tree | 36ba7ffb547e9a90121c9cee43c6a176e06022a9 | |
| parent | 5d9d1247b2d5aa75ceccc9f9a915d4ed1109a205 (diff) | |
| download | linux-2ae03ce28679e45dc3c5cb7b93a8507edfe313b0.tar.xz | |
dt-bindings: display: bridge: ldb: Document nxp, enable-termination-resistor
Document the optional nxp,enable-termination-resistor property for the
i.MX LVDS display bridge.
This boolean property indicates that the built-in 100 Ohm termination
resistor on the LVDS output is enabled. It is controlled via the HS_EN
bit in the LVDS_CTRL register. Enabling the resistor can improve LVDS
signal quality and may prevent visual artifacts on some boards, but
increases the power consumption.
Signed-off-by: Fabio Estevam <festevam@nabladev.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Link: https://lore.kernel.org/r/20260120231930.2782444-1-festevam@gmail.com
| -rw-r--r-- | Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml index 07388bf2b90d..828b7a40e9b6 100644 --- a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml +++ b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml @@ -35,6 +35,15 @@ properties: - const: ldb - const: lvds + nxp,enable-termination-resistor: + type: boolean + description: + Indicates that the built-in 100 Ohm termination resistor on the LVDS + output is enabled. This property is optional and controlled via the + HS_EN bit in the LVDS_CTRL register. Enabling it can improve signal + quality and prevent visual artifacts on some boards, but increases + power consumption. + ports: $ref: /schemas/graph.yaml#/properties/ports @@ -74,6 +83,15 @@ allOf: properties: port@2: false + - if: + properties: + compatible: + contains: + const: fsl,imx6sx-ldb + then: + properties: + nxp,enable-termination-resistor: false + additionalProperties: false examples: |