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dt-bindings: i2c: maxim,max96712: Require setting bus-type property
The MAX96712 can support both a CSI-2 C-PHY and D-PHY bus. The initial staging driver however only supported D-PHY and the bus-type property was left optional. In preparation for adding C-PHY support to the staging driver make the bus-type property mandatory as it is needed to select the correct PHY mode. Without the bus-type property present, the driver falls-back to D-PHY mode, so the change is functionally backward compatible with old DTS files lacking the property. The only in-tree DTS file (renesas/r8a779a0-falcon-csi-dsi.dtsi) that lacked the property uses D-PHY and have been updated. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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@ -65,9 +65,14 @@ properties:
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properties:
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data-lanes: true
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bus-type:
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enum:
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- 1 # MEDIA_BUS_TYPE_CSI2_CPHY
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- 4 # MEDIA_BUS_TYPE_CSI2_DPHY
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required:
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- data-lanes
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- bus-type
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required:
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- port@4
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@ -82,6 +87,7 @@ additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/media/video-interfaces.h>
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i2c@e6508000 {
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#address-cells = <1>;
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@ -101,6 +107,7 @@ examples:
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port@4 {
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reg = <4>;
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max96712_out0: endpoint {
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bus-type = <MEDIA_BUS_TYPE_CSI2_DPHY>;
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clock-lanes = <0>;
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data-lanes = <1 2 3 4>;
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remote-endpoint = <&csi40_in>;
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