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authorViresh Kumar <viresh.kumar@linaro.org>2021-01-21 12:15:36 +0530
committerViresh Kumar <viresh.kumar@linaro.org>2021-02-02 10:28:07 +0530
commitabbe348340c7df9e08fd7c24491c1be31ab65370 (patch)
tree6f32224a209c63c6da8b1d57e1a9d0b525ba4162 /drivers/opp
parent509e4777ca41d30808deda5ae3c1e09e3f58a33f (diff)
opp: Implement dev_pm_opp_set_opp()
The new helper dev_pm_opp_set_opp() can be used for configuring the devices for a particular OPP and can be used by different type of devices, even the ones which don't change frequency (like power domains). Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Dmitry Osipenko <digetx@gmail.com>
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 2b5584ef0350..fac84d5a1d45 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1136,6 +1136,34 @@ put_opp_table:
}
EXPORT_SYMBOL_GPL(dev_pm_opp_set_rate);
+/**
+ * dev_pm_opp_set_opp() - Configure device for OPP
+ * @dev: device for which we do this operation
+ * @opp: OPP to set to
+ *
+ * This configures the device based on the properties of the OPP passed to this
+ * routine.
+ *
+ * Return: 0 on success, a negative error number otherwise.
+ */
+int dev_pm_opp_set_opp(struct device *dev, struct dev_pm_opp *opp)
+{
+ struct opp_table *opp_table;
+ int ret;
+
+ opp_table = _find_opp_table(dev);
+ if (IS_ERR(opp_table)) {
+ dev_err(dev, "%s: device opp doesn't exist\n", __func__);
+ return PTR_ERR(opp_table);
+ }
+
+ ret = _set_opp(dev, opp_table, opp, opp ? opp->rate : 0);
+ dev_pm_opp_put_opp_table(opp_table);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_set_opp);
+
/* OPP-dev Helpers */
static void _remove_opp_dev(struct opp_device *opp_dev,
struct opp_table *opp_table)