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authorLinus Walleij <linus.walleij@linaro.org>2011-03-17 15:24:36 +0300
committerLiam Girdwood <lrg@slimlogic.co.uk>2011-03-26 17:15:06 +0300
commit77af1b2641faf45788a0d480db94082ebee931dc (patch)
tree66f06c3244e6c961f15b22e66156f388e0420994 /include/linux
parent79568b941277b5986a8a7f0fb8578b2ccfc3e87e (diff)
downloadlinux-77af1b2641faf45788a0d480db94082ebee931dc.tar.xz
regulator: add set_voltage_time_sel infrastructure
This makes it possible to set the stabilization time for voltage regulators in the same manner as enable_time(). The interface only supports regulators that implements fixed selectors. Cc: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/regulator/driver.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index b8ed16a33c47..6c433b89c80d 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -63,7 +63,11 @@ enum regulator_status {
* when running with the specified parameters.
*
* @enable_time: Time taken for the regulator voltage output voltage to
- * stabalise after being enabled, in microseconds.
+ * stabilise after being enabled, in microseconds.
+ * @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.
*
* @set_suspend_voltage: Set the voltage for the regulator when the system
* is suspended.
@@ -103,8 +107,11 @@ struct regulator_ops {
int (*set_mode) (struct regulator_dev *, unsigned int mode);
unsigned int (*get_mode) (struct regulator_dev *);
- /* Time taken to enable the regulator */
+ /* Time taken to enable or set voltage on the regulator */
int (*enable_time) (struct regulator_dev *);
+ int (*set_voltage_time_sel) (struct regulator_dev *,
+ unsigned int old_selector,
+ unsigned int new_selector);
/* report regulator status ... most other accessors report
* control inputs, this reports results of combining inputs