diff mbox series

[v2,08/48] regulator: Make regulator_sync_voltage() usable by coupled regulators

Message ID 20201217180638.22748-9-digetx@gmail.com (mailing list archive)
State New, archived
Headers show
Series Introduce core voltage scaling for NVIDIA Tegra20/30 SoCs | expand

Commit Message

Dmitry Osipenko Dec. 17, 2020, 6:05 p.m. UTC 
Make regulator_sync_voltage() to re-balance voltage state of a coupled
regulators instead of changing the voltage directly.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/regulator/core.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index ca03d8e70bd1..576efb815eb8 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4131,6 +4131,12 @@  int regulator_sync_voltage(struct regulator *regulator)
 	if (ret < 0)
 		goto out;
 
+	/* balance only if there are regulators coupled */
+	if (rdev->coupling_desc.n_coupled > 1) {
+		ret = regulator_balance_voltage(rdev, PM_SUSPEND_ON);
+		goto out;
+	}
+
 	ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
 
 out: