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>
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index d0a7b12..bec5d57 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -10,7 +10,7 @@
- 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:
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 73a3d87..ce0a346 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2319,11 +2319,11 @@
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");
}
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index ddc155d..84f999ed 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -173,7 +173,7 @@
*
* @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_
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index 5f37ad3..40dd0a3 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -92,7 +92,7 @@
* 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 {