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authorPaul Kocialkowski <paul.kocialkowski@bootlin.com>2022-04-15 18:21:31 +0300
committerVinod Koul <vkoul@kernel.org>2022-04-20 12:10:11 +0300
commitc20f80d0b89cf43be964797e6170f085b312ea01 (patch)
tree7dc48a1907cecbcc775656fc95a5c65d51e1ee97
parent3fbae284887de24c83e88b1ebbb0a5fe8dbe9ac1 (diff)
downloadlinux-c20f80d0b89cf43be964797e6170f085b312ea01.tar.xz
dt-bindings: sun6i-a31-mipi-dphy: Add optional direction property
The Allwinner A31 MIPI D-PHY block supports both tx and rx directions, although each instance of the block is meant to be used in one direction only. There will typically be one instance for MIPI DSI and one for MIPI CSI-2 (it seems unlikely to ever see a shared instance). Describe the direction with a new allwinner,direction property. For backwards compatibility, the property is optional and tx mode should be assumed by default. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220415152138.635525-2-paul.kocialkowski@bootlin.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
index d0b541a461f3..22636c9fdab8 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
@@ -37,6 +37,18 @@ properties:
resets:
maxItems: 1
+ allwinner,direction:
+ $ref: '/schemas/types.yaml#/definitions/string'
+ description: |
+ Direction of the D-PHY:
+ - "rx" for receiving (e.g. when used with MIPI CSI-2);
+ - "tx" for transmitting (e.g. when used with MIPI DSI).
+
+ enum:
+ - tx
+ - rx
+ default: tx
+
required:
- "#phy-cells"
- compatible