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Unverified Commit c85964de authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Mark Brown
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dt-bindings: mfd: bd9571mwv: Document DDR Backup Mode properties 



Document the new optional properties related to DDR Backup Mode and
toggle/momentary power switches.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 60cc43fc

Documentation/devicetree/bindings/mfd/bd9571mwv.txt

+21 −0
Original line number Diff line number Diff line
@@ -25,6 +25,25 @@ Required properties: 
			    Each child node is defined using the standard

			    binding for regulators.



Optional properties:

  - rohm,ddr-backup-power : Value to use for DDR-Backup Power (default 0).

			    This is a bitmask that specifies which DDR power

			    rails need to be kept powered when backup mode is

			    entered, for system suspend:

			      - bit 0: DDR0

			      - bit 1: DDR1

			      - bit 2: DDR0C

			      - bit 3: DDR1C

			    These bits match the KEEPON_DDR* bits in the

			    documentation for the "BKUP Mode Cnt" register.

  - rohm,rstbmode-level: The RSTB signal is configured for level mode, to

			 accommodate a toggle power switch (the RSTBMODE pin is

			 strapped low).

  - rohm,rstbmode-pulse: The RSTB signal is configured for pulse mode, to

			 accommodate a momentary power switch (the RSTBMODE pin

			 is strapped high).

			 The two properties above are mutually exclusive.



Example:



	pmic: pmic@30 {
@@ -36,6 +55,8 @@ Example: 
		#interrupt-cells = <2>;

		gpio-controller;

		#gpio-cells = <2>;

		rohm,ddr-backup-power = <0xf>;

		rohm,rstbmode-pulse;



		regulators {

			dvfs: dvfs {