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max-memory-bandwidth can be used to specify the maximum bandwidth dispc can use when reading display data from main memory. In some SoC (am437x for example) we have memory bandwidth limitation which causes underflow in the display subsystem. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
58 lines
1.2 KiB
Text
58 lines
1.2 KiB
Text
Texas Instruments OMAP2 Display Subsystem
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=========================================
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See Documentation/devicetree/bindings/display/ti/ti,omap-dss.txt for generic
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description about OMAP Display Subsystem bindings.
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DSS Core
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--------
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Required properties:
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- compatible: "ti,omap2-dss"
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- reg: address and length of the register space
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- ti,hwmods: "dss_core"
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Optional nodes:
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- Video port for DPI output
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DPI Endpoint required properties:
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- data-lines: number of lines used
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DISPC
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-----
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Required properties:
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- compatible: "ti,omap2-dispc"
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- reg: address and length of the register space
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- ti,hwmods: "dss_dispc"
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- interrupts: the DISPC interrupt
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Optional properties:
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- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
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in bytes per second
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RFBI
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----
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Required properties:
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- compatible: "ti,omap2-rfbi"
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- reg: address and length of the register space
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- ti,hwmods: "dss_rfbi"
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VENC
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----
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Required properties:
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- compatible: "ti,omap2-venc"
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- reg: address and length of the register space
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- ti,hwmods: "dss_venc"
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- vdda-supply: power supply for DAC
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VENC Endpoint required properties:
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Required properties:
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- ti,invert-polarity: invert the polarity of the video signal
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- ti,channels: 1 for composite, 2 for s-video
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