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Commit 9ef9bb58 authored by Sandeep Panda's avatar Sandeep Panda
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ARM: dts: Document guidelines for DCS command timeout issue 



Document the guidelines for changing dtsi file for timeout issue
of DCS short packets in LP mode, when video mode is enabled.

Change-Id: Iab4baa74c936e36b2c6b16aad9e3a4f20bdad838
Signed-off-by: default avatarSandeep Panda <spanda@codeaurora.org>
parent 90f1b5b9

Documentation/devicetree/bindings/fb/mdss-dsi-panel.txt

+13 −0
Original line number Diff line number Diff line
@@ -60,6 +60,19 @@ Required properties: 
					byte 5, 6: 16 bits length in network byte order

					byte 7 and beyond: number byte of payload



Note, if a short DCS packet(i.e packet with Byte 0:dcs data type as 05) mentioned in

qcom,mdss-dsi-on-command/qcom,mdss-dsi-off-command stream fails to transmit,

then 3 options can be tried.

	1. Send the packet as a long packet instead

				Byte 0: dcs data type = 05 (DCS short Packet)

				Byte 0: dcs data type = 29 (DCS long Packet)

	2. Send the packet in one burst by prepending with the next packet in packet stream

				Byte 1 = 01 (indicates this is an individual packet)

				Byte 1 = 00 (indicates this will be appended to the next

					     individual packet in the packet stream)

	3. Prepend a NULL packet to the short packet and send both in one burst instead of

	   combining multiple short packets and sending them in one burst.



Optional properties:

- qcom,mdss-dsi-panel-name:		A string used as a descriptive name of the panel

- qcom,cont-splash-enabled:		Boolean used to enable continuous splash mode.