target/linux/ipq806x/patches-4.9/0051-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 diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c
  14 index 5e0f326061c6..d333dab7b9e1 100644
  15 --- a/drivers/base/power/opp/core.c
  16 +++ b/drivers/base/power/opp/core.c
  17 @@ -151,6 +151,27 @@ unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
  18  }
  19  EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq);
  20
  21 +struct regulator *dev_pm_opp_get_regulator(struct device *dev)
  22 +{
  23 +       struct opp_table *opp_table;
  24 +       struct regulator *reg;
  25 +
  26 +       rcu_read_lock();
  27 +
  28 +       opp_table = _find_opp_table(dev);
  29 +       if (IS_ERR(opp_table)) {
  30 +               rcu_read_unlock();
  31 +               return ERR_CAST(opp_table);
  32 +       }
  33 +
  34 +       reg = opp_table->regulator;
  35 +
  36 +       rcu_read_unlock();
  37 +
  38 +       return reg;
  39 +}
  40 +EXPORT_SYMBOL_GPL(dev_pm_opp_get_regulator);
  41 +
  42  /**
  43   * dev_pm_opp_is_turbo() - Returns if opp is turbo OPP or not
  44   * @opp: opp for which turbo mode is being verified
  45 diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
  46 index f5425e0331de..672783b3fd85 100644
  47 --- a/include/linux/pm_opp.h
  48 +++ b/include/linux/pm_opp.h
  49 @@ -31,6 +31,7 @@ enum dev_pm_opp_event {
  50  unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
  51
  52  unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
  53 +struct regulator *dev_pm_opp_get_regulator(struct device *dev);
  54
  55  bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp);
  56
  57 --
  58 2.11.0
  59