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PM / OPP: Update voltage even if target rate is equal to initial rate

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The regulator is shared between several devices on some platforms,
if cpu target rate is equal to initial rate, the min_uV and max_uV
of cpu regulator will be always equal to zero, other devices may
set a low voltage which can't meet cpu initial rate.

Change-Id: I97e4815a2422417cd9bd605c93138f5ffda9cc86
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
This commit is contained in:
Finley Xiao
2018-05-04 15:03:14 +08:00
committed by Tao Huang
parent 016724119e
commit dc1acdf19f
1 changed files with 1 additions and 4 deletions
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5
drivers/base/power/opp/core.c
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@@ -771,10 +771,7 @@ int dev_pm_opp_check_initial_rate(struct device *dev, unsigned long *cur_freq)
dev_dbg(dev, "%lu Hz %d uV --> %lu Hz %lu uV\n", old_freq, old_volt,
target_freq, u_volt);
if (old_freq == target_freq && old_volt == u_volt)
return 0;
if (old_freq == target_freq && old_volt != u_volt) {
if (old_freq == target_freq) {
ret = _set_opp_voltage(dev, reg, u_volt, u_volt_min,
u_volt_max);
if (ret) {