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| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2019-03-05 00:51:18 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2019-06-08 02:36:04 +0300 |
| commit | f54b4df6b14fb5858bec605aee4356a2e801dddb (patch) | |
| tree | f153e52681bb227e89587d73e33f2f18064f0eb2 /Documentation | |
| parent | 1ddf2d4ad898e5e793681680489fc4c1173d2d42 (diff) | |
| download | linux-f54b4df6b14fb5858bec605aee4356a2e801dddb.tar.xz | |
dt-bindings: display: renesas: lvds: Add renesas,companion property
Add a new optional renesas,companion property to point to the companion
LVDS encoder. This is used to support dual-link operation where the main
LVDS encoder splits even-numbered and odd-numbered pixels between the
two LVDS encoders.
The new property doesn't control the mode of operation, it only
describes the relationship between the master and companion LVDS
encoders.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt index 86a691a5dcf5..c6a196d0b075 100644 --- a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt @@ -46,14 +46,24 @@ OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. Each port shall have a single endpoint. +Optional properties: + +- renesas,companion : phandle to the companion LVDS encoder. This property is + mandatory for the first LVDS encoder on D3 and E3 SoCs, and shall point to + the second encoder to be used as a companion in dual-link mode. It shall not + be set for any other LVDS encoder. + Example: lvds0: lvds@feb90000 { - compatible = "renesas,r8a7790-lvds"; - reg = <0 0xfeb90000 0 0x1c>; - clocks = <&cpg CPG_MOD 726>; - resets = <&cpg 726>; + compatible = "renesas,r8a77990-lvds"; + reg = <0 0xfeb90000 0 0x20>; + clocks = <&cpg CPG_MOD 727>; + power-domains = <&sysc R8A77990_PD_ALWAYS_ON>; + resets = <&cpg 727>; + + renesas,companion = <&lvds1>; ports { #address-cells = <1>; |