diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2018-01-12 10:03:45 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2018-05-09 10:15:19 +0530 |
| commit | e2f4b5f8dc59c28605a320ea923905e519fd2ca7 (patch) | |
| tree | 3cd38123affd84dd6b6f58a79e583cb98673a85a /drivers/opp | |
| parent | a88bd2a51e901ed8081841d647157de8153df813 (diff) | |
| download | linux-e2f4b5f8dc59c28605a320ea923905e519fd2ca7.tar.bz2 | |
PM / OPP: Implement dev_pm_opp_get_of_node()
This adds a new helper to let the power domain drivers to access
opp->np, so that they can read platform specific properties from the
node.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/of.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 6380ec3d695b..de41e68b780f 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -727,3 +727,22 @@ put_opp_table: return opp; } EXPORT_SYMBOL_GPL(of_dev_pm_opp_find_required_opp); + +/** + * dev_pm_opp_get_of_node() - Gets the DT node corresponding to an opp + * @opp: opp for which DT node has to be returned for + * + * Return: DT node corresponding to the opp, else 0 on success. + * + * The caller needs to put the node with of_node_put() after using it. + */ +struct device_node *dev_pm_opp_get_of_node(struct dev_pm_opp *opp) +{ + if (IS_ERR_OR_NULL(opp)) { + pr_err("%s: Invalid parameters\n", __func__); + return NULL; + } + + return of_node_get(opp->np); +} +EXPORT_SYMBOL_GPL(dev_pm_opp_get_of_node); |