target/linux/ipq806x/patches-4.14/0051-PM-OPP-Add-a-helper-to-get-an-opp-regulator-for-devi.patch

   1 From d06ca5e7a3cf726f5be5ffd96e93ccd798b8c09a Mon Sep 17 00:00:00 2001
   2 From: Georgi Djakov <georgi.djakov@linaro.org>
   3 Date: Thu, 12 May 2016 14:41:33 +0300
   4 Subject: [PATCH 51/69] PM / OPP: Add a helper to get an opp regulator for
   5  device
   6
   7 Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
   8 ---
   9  drivers/base/power/opp/core.c | 21 +++++++++++++++++++++
  10  include/linux/pm_opp.h        |  1 +
  11  2 files changed, 22 insertions(+)
  12
  13 --- a/drivers/base/power/opp/core.c
  14 +++ b/drivers/base/power/opp/core.c
  15 @@ -126,6 +126,27 @@ unsigned long dev_pm_opp_get_freq(struct
  16  }
  17  EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq);
  18
  19 +struct regulator *dev_pm_opp_get_regulator(struct device *dev)
  20 +{
  21 +       struct opp_table *opp_table;
  22 +       struct regulator *reg;
  23 +
  24 +       rcu_read_lock();
  25 +
  26 +       opp_table = _find_opp_table(dev);
  27 +       if (IS_ERR(opp_table)) {
  28 +               rcu_read_unlock();
  29 +               return ERR_CAST(opp_table);
  30 +       }
  31 +
  32 +       reg = opp_table->regulators[0];
  33 +
  34 +       rcu_read_unlock();
  35 +
  36 +       return reg;
  37 +}
  38 +EXPORT_SYMBOL_GPL(dev_pm_opp_get_regulator);
  39 +
  40  /**
  41   * dev_pm_opp_is_turbo() - Returns if opp is turbo OPP or not
  42   * @opp: opp for which turbo mode is being verified
  43 --- a/include/linux/pm_opp.h
  44 +++ b/include/linux/pm_opp.h
  45 @@ -85,6 +85,7 @@ void dev_pm_opp_put_opp_table(struct opp
  46  unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
  47
  48  unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
  49 +struct regulator *dev_pm_opp_get_regulator(struct device *dev);
  50
  51  bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp);
  52