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Commit e7fc278c authored by Laxman Dewangan's avatar Laxman Dewangan Committed by Mark Brown
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regulator: max77620: Add details of device specific ramp rate setting 



It is observed that the ramp rate measured on platform is not same as
advertised ramp rate due to platform design variation. On this case,
measured ramp rate is provided with property regulator-ramp-rate.

For such cases, add DT property for device specific configurations.

Signed-off-by: default avatarLaxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f55532a0

Documentation/devicetree/bindings/regulator/regulator-max77620.txt

+22 −0
Original line number Original line Diff line number Diff line
@@ -94,6 +94,28 @@ Following are additional properties: 
					This is applicable if suspend state

					This is applicable if suspend state

					FPS source is selected as FPS0, FPS1 or

					FPS source is selected as FPS0, FPS1 or

					FPS2.

					FPS2.

- maxim,ramp-rate-setting:		integer, ramp rate(uV/us) setting to be

					configured to the device.

					The platform may have different ramp

					rate than advertised ramp rate if it has

					design variation from Maxim's

					recommended. On this case, platform

					specific ramp rate is used for ramp time

					calculation and this property is used

					for device register configurations.

					The measured ramp rate of platform is

					provided by the regulator-ramp-delay

					as described in <devicetree/bindings/

					regulator/regulator.txt>.

					Maxim Max77620 supports following ramp

					delay:

					  SD: 13.75mV/us, 27.5mV/us, 55mV/us

					  LDOs: 5mV/us, 100mV/us



Note: If the measured ramp delay is same as advertised ramp delay then it is not

required to provide the ramp delay with property "maxim,ramp-rate-setting". The

ramp rate can be provided by the regulator-ramp-delay which will be used for

ramp time calculation for voltage change as well as for device configuration.





Example:

Example:

--------

--------