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Commit 80d452d2 authored by Karthik Anantha Ram's avatar Karthik Anantha Ram
Browse files

Documentation: Add description for ubwc fetch/write config 



Add description for ubwc fetch/write config for ipe & bps
based on DDR device type.

Change-Id: Iea3a93d2f7354c292c4ce5944b1ad6f6d4316afb
Signed-off-by: default avatarKarthik Anantha Ram <kartanan@codeaurora.org>
parent 4aa0af4a

Documentation/devicetree/bindings/media/video/msm-cam-icp.txt

+30 −4
Original line number Diff line number Diff line
@@ -136,10 +136,31 @@ and name of firmware image. 
  Value type: <string>

  Definition: Name of firmware image.



- ubwc-cfg

- ubwc-ipe-fetch-cfg

  Usage: required

  Value type: <u32>

  Definition: UBWC IPE fetch configuration based on DDR device type.



- ubwc-ipe-write-cfg

  Usage: required

  Value type: <u32>

  Definition: UBWC configuration.

  Definition: UBWC IPE write configuration based on DDR device type.



- ubwc-bps-fetch-cfg

  Usage: required

  Value type: <u32>

  Definition: UBWC BPS fetch configuration based on DDR device type.



- ubwc-bps-write-cfg

  Usage: required

  Value type: <u32>

  Definition: UBWC BPS write configuration based on DDR device type.



- ubwc-cfg

  Usage: optional

  Value type: <u32>

  Definition: UBWC configuration, this is mandatory if above

              ipe/bps ubwc properties are not used.



Examples:

a5: qcom,a5@ac00000 {
@@ -179,8 +200,13 @@ a5: qcom,a5@ac00000 { 
	clock-rates = <0 0 0 80000000 0 0 0 0 600000000 0 0>;

	clock-cntl-level = "turbo";

	fw_name = "CAMERA_ICP.elf";

	ubwc-cfg = <0x7F 0x1FF>;

};

	/* "ubwc-cfg" is not used, even if defined the new property

	tags will be priortized. If the new properties are not used

	please specify "ubwc-cfg" in that case */

	ubwc-ipe-fetch-cfg = <0x707b 0x7083>;

	ubwc-ipe-write-cfg = <0x161ef 0x1620f>;

	ubwc-bps-fetch-cfg = <0x707b 0x7083>

	ubwc-bps-write-cfg = <0x161ef 0x1620f>;



qcom,ipe0 {

	cell-index = <0>;