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Commit 32fdb624 authored Nov 30, 2017 by Peter Ujfalusi Committed by Tomi Valkeinen Dec 19, 2017

dt-bindings: display/ti: Add optional property to set memory bandwidth limit



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>

parent aa8eeb99

Documentation/devicetree/bindings/display/ti/ti,dra7-dss.txt

+5 −0

Original line number	Diff line number	Diff line
		@@ -47,6 +47,11 @@ Required properties:
		- clocks: handle to fclk
		- clock-names: "fck"

		Optional properties:
		- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
		in bytes per second


		HDMI
		----

Documentation/devicetree/bindings/display/ti/ti,omap2-dss.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -28,6 +28,10 @@ Required properties:
		- ti,hwmods: "dss_dispc"
		- interrupts: the DISPC interrupt

		Optional properties:
		- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
		in bytes per second


		RFBI
		----

Documentation/devicetree/bindings/display/ti/ti,omap3-dss.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,10 @@ Required properties:
		- clocks: handle to fclk
		- clock-names: "fck"

		Optional properties:
		- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
		in bytes per second


		RFBI
		----

Documentation/devicetree/bindings/display/ti/ti,omap4-dss.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,10 @@ Required properties:
		- clocks: handle to fclk
		- clock-names: "fck"

		Optional properties:
		- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
		in bytes per second


		RFBI
		----

Documentation/devicetree/bindings/display/ti/ti,omap5-dss.txt

+4 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,10 @@ Required properties:
		- clocks: handle to fclk
		- clock-names: "fck"

		Optional properties:
		- max-memory-bandwidth: Input memory (from main memory to dispc) bandwidth limit
		in bytes per second


		RFBI
		----