diff options
| author | David Brownell <dbrownell@users.sourceforge.net> | 2009-01-14 23:03:17 -0800 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2009-03-31 09:56:20 +0100 |
| commit | 853116a10544206b6b2cf42ebc9d78fba2668888 (patch) | |
| tree | bc233aa343638575b36e300e863ce3d477374f57 /include/linux/regulator | |
| parent | 93e14baa4494607efe81608725f591e3ba31e3c1 (diff) | |
regulator: add get_status()
Based on previous LKML discussions:
* Update docs for regulator sysfs class attributes to highlight
the fact that all current attributes are intended to be control
inputs, including notably "state" and "opmode" which previously
implied otherwise.
* Define a new regulator driver get_status() method, which is the
first method reporting regulator outputs instead of inputs.
It can report on/off and error status; or instead of simply
"on", report the actual operating mode.
For the moment, this is a sysfs-only interface, not accessible to
regulator clients. Such clients can use the current notification
interfaces to detect errors, if the regulator reports them.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'include/linux/regulator')
| -rw-r--r-- | include/linux/regulator/driver.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 2dae05705f13..6e957aae7629 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -21,6 +21,17 @@ struct regulator_dev; struct regulator_init_data; +enum regulator_status { + REGULATOR_STATUS_OFF, + REGULATOR_STATUS_ON, + REGULATOR_STATUS_ERROR, + /* fast/normal/idle/standby are flavors of "on" */ + REGULATOR_STATUS_FAST, + REGULATOR_STATUS_NORMAL, + REGULATOR_STATUS_IDLE, + REGULATOR_STATUS_STANDBY, +}; + /** * struct regulator_ops - regulator operations. * @@ -72,6 +83,12 @@ struct regulator_ops { int (*set_mode) (struct regulator_dev *, unsigned int mode); unsigned int (*get_mode) (struct regulator_dev *); + /* report regulator status ... most other accessors report + * control inputs, this reports results of combining inputs + * from Linux (and other sources) with the actual load. + */ + int (*get_status)(struct regulator_dev *); + /* get most efficient regulator operating mode for load */ unsigned int (*get_optimum_mode) (struct regulator_dev *, int input_uV, int output_uV, int load_uA); |