diff options
| -rw-r--r-- | drivers/soc/tegra/regulators-tegra20.c | 8 | ||||
| -rw-r--r-- | drivers/soc/tegra/regulators-tegra30.c | 6 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/soc/tegra/regulators-tegra20.c b/drivers/soc/tegra/regulators-tegra20.c index ea0eede48802..367a71a3cd10 100644 --- a/drivers/soc/tegra/regulators-tegra20.c +++ b/drivers/soc/tegra/regulators-tegra20.c @@ -162,6 +162,9 @@ static int tegra20_core_rtc_update(struct tegra_regulator_coupler *tegra, core_target_uV = max(rtc_uV - max_spread, core_target_uV); } + if (core_uV == core_target_uV) + goto update_rtc; + err = regulator_set_voltage_rdev(core_rdev, core_target_uV, core_max_uV, @@ -170,7 +173,7 @@ static int tegra20_core_rtc_update(struct tegra_regulator_coupler *tegra, return err; core_uV = core_target_uV; - +update_rtc: if (rtc_uV < rtc_min_uV) { rtc_target_uV = min(rtc_uV + max_spread, rtc_min_uV); rtc_target_uV = min(core_uV + max_spread, rtc_target_uV); @@ -179,6 +182,9 @@ static int tegra20_core_rtc_update(struct tegra_regulator_coupler *tegra, rtc_target_uV = max(core_uV - max_spread, rtc_target_uV); } + if (rtc_uV == rtc_target_uV) + continue; + err = regulator_set_voltage_rdev(rtc_rdev, rtc_target_uV, rtc_max_uV, diff --git a/drivers/soc/tegra/regulators-tegra30.c b/drivers/soc/tegra/regulators-tegra30.c index 8e623ff18e70..7f21f31de09d 100644 --- a/drivers/soc/tegra/regulators-tegra30.c +++ b/drivers/soc/tegra/regulators-tegra30.c @@ -209,6 +209,9 @@ static int tegra30_voltage_update(struct tegra_regulator_coupler *tegra, cpu_target_uV = max(core_uV - max_spread, cpu_target_uV); } + if (cpu_uV == cpu_target_uV) + goto update_core; + err = regulator_set_voltage_rdev(cpu_rdev, cpu_target_uV, cpu_max_uV, @@ -231,6 +234,9 @@ update_core: core_target_uV = max(core_target_uV, core_uV - core_max_step); } + if (core_uV == core_target_uV) + continue; + err = regulator_set_voltage_rdev(core_rdev, core_target_uV, core_max_uV, |