[PATCH v4 02/14] regulator: Add function to map modes to struct regulator_desc

Javier Martinez Canillas
2014-11-03T14:42:27Z

The regulator-initial-mode and regulator-mode DT properties allows to
configure the regulator operating modes at startup or when a system
enters into a susend state.

But these properties use as valid values the operating modes supported
by each device while the core deals with the standard operating modes.
So a mapping function is needed to translate from the hardware specific
modes to the standard ones.

This mapping is a non-varying configuration for each regulator, so add
a function pointer to struct regulator_desc that will allow drivers to
define their callback to do the modes translation.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
---
include/linux/regulator/driver.h | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 28da08e..b54d037 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -243,6 +243,8 @@ enum regulator_type {
*
* @enable_time: Time taken for initial enable of regulator (in uS).
* @off_on_delay: guard time (in uS), before re-enabling a regulator
+ *
+ * @map_modes: Callback invoked to translate between hardware to standard modes.
*/
struct regulator_desc {
const char *name;
@@ -285,6 +287,8 @@ struct regulator_desc {
unsigned int enable_time;

unsigned int off_on_delay;
+
+ unsigned int (*map_modes)(unsigned int mode);
};

/**
--
2.1.0