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authorMatthias Kaehlcke <mka@chromium.org>2016-09-14 19:52:08 +0300
committerMark Brown <broonie@kernel.org>2016-09-16 20:38:22 +0300
commit73e705bf81ceb84b39ef9cf6ffb8d12ca0c58a23 (patch)
treed9b12334afd63697d21e46788c7a79c80abd0da7 /include/linux
parentd89564efe79419a093e966a959bf5ba2c94e693f (diff)
downloadlinux-73e705bf81ceb84b39ef9cf6ffb8d12ca0c58a23.tar.xz
regulator: core: Add set_voltage_time op
The new op is analogous to set_voltage_time_sel. It can be used by regulators which don't have a table of discrete voltages. The function returns the time for the regulator output voltage to stabilize after being set to a new value, in microseconds. If the op is not set a default implementation is used to calculate the delay. This change also removes the ramp_delay calculation in the PWM regulator, since the driver now uses the core code for the calculation of the delay. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/regulator/driver.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index fcfa40a6692c..37b532410528 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -113,10 +113,14 @@ struct regulator_linear_range {
* stabilise after being enabled, in microseconds.
* @set_ramp_delay: Set the ramp delay for the regulator. The driver should
* select ramp delay equal to or less than(closest) ramp_delay.
+ * @set_voltage_time: Time taken for the regulator voltage output voltage
+ * to stabilise after being set to a new value, in microseconds.
+ * The function receives the from and to voltage as input, it
+ * should return the worst case.
* @set_voltage_time_sel: Time taken for the regulator voltage output voltage
* to stabilise after being set to a new value, in microseconds.
- * The function provides the from and to voltage selector, the
- * function should return the worst case.
+ * The function receives the from and to voltage selector as
+ * input, it should return the worst case.
* @set_soft_start: Enable soft start for the regulator.
*
* @set_suspend_voltage: Set the voltage for the regulator when the system
@@ -168,6 +172,8 @@ struct regulator_ops {
/* Time taken to enable or set voltage on the regulator */
int (*enable_time) (struct regulator_dev *);
int (*set_ramp_delay) (struct regulator_dev *, int ramp_delay);
+ int (*set_voltage_time) (struct regulator_dev *, int old_uV,
+ int new_uV);
int (*set_voltage_time_sel) (struct regulator_dev *,
unsigned int old_selector,
unsigned int new_selector);