[PATCH 2/4] regulator: add support for struct regulator_desc::off_on_delay

[Ahmad Fatoum]

We already honour the enable time in the device tree, read it out
of a new regulator_desc::off_on_delay as well, same as Linux does.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 drivers/regulator/core.c | 3 +++
 include/regulator.h      | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7ced283c116c..ac3a9b048ea8 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -176,6 +176,9 @@ int of_regulator_register(struct regulator_dev *rd, struct device_node *node)
 
 	ri->node = node;
 
+	if (rd->desc->off_on_delay)
+		ri->enable_time_us = rd->desc->off_on_delay;
+
 	if (rd->desc->fixed_uV && rd->desc->n_voltages == 1)
 		ri->min_uv = ri->max_uv = rd->desc->fixed_uV;
 
diff --git a/include/regulator.h b/include/regulator.h
index 524e53042c92..83a8813265ff 100644
--- a/include/regulator.h
+++ b/include/regulator.h
@@ -52,6 +52,7 @@ struct regulator_bulk_data {
  * @enable_is_inverted: A flag to indicate set enable_mask bits to disable
  *                      when using regulator_enable_regmap and friends APIs.
  * @fixed_uV: Fixed voltage of rails.
+ * @off_on_delay: guard time (in uS), before re-enabling a regulator
  */
 
 struct regulator_desc {
@@ -75,6 +76,7 @@ struct regulator_desc {
 	const struct regulator_linear_range *linear_ranges;
 	int n_linear_ranges;
 	int fixed_uV;
+	unsigned int off_on_delay;
 };
 
 struct regulator_dev {
-- 
2.30.0