regulator: of: Add support for parsing microvolts for suspend state

Leverage all the work that was done in (40e20d6 regulator: of: Add
support for parsing regulator_state for suspend state) and throw in
the ability to set suspend microvolts from the device tree.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 36a1f5cc14e9..50be70878d2d 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -107,6 +107,10 @@ static void of_get_regulation_constraints(struct device_node *np,
                                         "regulator-off-in-suspend"))
                         suspend_state->disabled = true;
 
+                if (!of_property_read_u32(suspend_np,
+                                        "regulator-suspend-microvolt", &pval))
+                        suspend_state->uV = pval;
+
                 of_node_put(suspend_np);
                 suspend_state = NULL;
                 suspend_np = NULL;