Make regulator_sync_voltage() to re-balance voltage state of a coupled regulators instead of changing the voltage directly.
Tested-by: Peter Geis <[email protected]> # Ouya T30 Tested-by: Dmitry Osipenko <[email protected]> # A500 T20 and Nexus7 T30 Tested-by: Nicolas Chauvet <[email protected]> # PAZ00 T20 Tested-by: Matt Merhar <[email protected]> # Ouya T30 Signed-off-by: Dmitry Osipenko <[email protected]> --- Changelog: v3: - This patch is factored out from [1] to ease merging of the patches that will use the regulator_sync_voltage(). The goal is to get this change merged into 5.12, it will remove dependency for the Tegra Core power domain driver which will target 5.13. [1] https://patchwork.ozlabs.org/project/linux-tegra/list/?series=221130 drivers/regulator/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 3ae5ccd9277d..032d4e7df682 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -4148,6 +4148,12 @@ 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: -- 2.29.2
