Commit ea38d13f authored Jun 18, 2012 by Axel Lin Committed by Mark Brown Jun 18, 2012

regulator: core: Change the unit of ramp_delay from mV/uS to uV/uS



This change makes it possible to set ramp_delay with 0.xxx mV/uS without
truncation issue.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

parent 398715ab

Documentation/devicetree/bindings/regulator/regulator.txt

+1 −1

Original line number	Diff line number	Diff line
		@@ -10,7 +10,7 @@ Optional properties:
		- regulator-always-on: boolean, regulator should never be disabled
		- regulator-boot-on: bootloader/firmware enabled regulator
		- <name>-supply: phandle to the parent supply/regulator node
		- regulator-ramp-delay: ramp delay for regulator(in mV/uS)
		- regulator-ramp-delay: ramp delay for regulator(in uV/uS)

		Example:

drivers/regulator/core.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -2319,11 +2319,11 @@ int regulator_set_voltage_time_sel(struct regulator_dev *rdev,
		if (rdev->desc->uV_step) {
		return DIV_ROUND_UP(rdev->desc->uV_step *
		abs(new_selector - old_selector),
		ramp_delay * 1000);
		ramp_delay);
		} else if (rdev->desc->volt_table) {
		return DIV_ROUND_UP(abs(rdev->desc->volt_table[new_selector] -
		rdev->desc->volt_table[old_selector]),
		ramp_delay * 1000);
		ramp_delay);
		} else {
		rdev_warn(rdev, "Unsupported voltage mapping settings\n");
		}

include/linux/regulator/driver.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -173,7 +173,7 @@ enum regulator_type {
		*
		* @min_uV: Voltage given by the lowest selector (if linear mapping)
		* @uV_step: Voltage increase with each selector (if linear mapping)
		* @ramp_delay: Time to settle down after voltage change (unit: mV/us)
		* @ramp_delay: Time to settle down after voltage change (unit: uV/us)
		* @volt_table: Voltage mapping table (if table based mapping)
		*
		* @vsel_reg: Register for selector when using regulator_regmap_X_voltage_

include/linux/regulator/machine.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -92,7 +92,7 @@ struct regulator_state {
		* mode.
		* @initial_state: Suspend state to set by default.
		* @initial_mode: Mode to set at startup.
		* @ramp_delay: Time to settle down after voltage change (unit: mV/us)
		* @ramp_delay: Time to settle down after voltage change (unit: uV/us)
		*/
		struct regulation_constraints {