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authorDmitry Osipenko <digetx@gmail.com>2021-01-18 01:55:21 +0100
committerViresh Kumar <viresh.kumar@linaro.org>2021-02-02 05:57:32 +0100
commitb4b9e223eccaeec6e05d927c292d4425fd18f243 (patch)
tree2a9ff398f3b65fb03ebd4a384017d2a96bc7a88b /drivers/opp
parentopp: Add devm_pm_opp_register_set_opp_helper (diff)
downloadlinux-b4b9e223eccaeec6e05d927c292d4425fd18f243.tar.xz
linux-b4b9e223eccaeec6e05d927c292d4425fd18f243.zip
opp: Add devm_pm_opp_attach_genpd
Add resource-managed version of dev_pm_opp_attach_genpd(). Signed-off-by: Dmitry Osipenko <digetx@gmail.com> [ Viresh: Manually apply the patch and relocate the routines ] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/opp')
-rw-r--r--drivers/opp/core.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 09069a564896..ce0ec5bde22a 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2275,6 +2275,42 @@ void dev_pm_opp_detach_genpd(struct opp_table *opp_table)
}
EXPORT_SYMBOL_GPL(dev_pm_opp_detach_genpd);
+static void devm_pm_opp_detach_genpd(void *data)
+{
+ dev_pm_opp_detach_genpd(data);
+}
+
+/**
+ * devm_pm_opp_attach_genpd - Attach genpd(s) for the device and save virtual
+ * device pointer
+ * @dev: Consumer device for which the genpd is getting attached.
+ * @names: Null terminated array of pointers containing names of genpd to attach.
+ * @virt_devs: Pointer to return the array of virtual devices.
+ *
+ * This is a resource-managed version of dev_pm_opp_attach_genpd().
+ *
+ * Return: pointer to 'struct opp_table' on success and errorno otherwise.
+ */
+struct opp_table *
+devm_pm_opp_attach_genpd(struct device *dev, const char **names,
+ struct device ***virt_devs)
+{
+ struct opp_table *opp_table;
+ int err;
+
+ opp_table = dev_pm_opp_attach_genpd(dev, names, virt_devs);
+ if (IS_ERR(opp_table))
+ return opp_table;
+
+ err = devm_add_action_or_reset(dev, devm_pm_opp_detach_genpd,
+ opp_table);
+ if (err)
+ return ERR_PTR(err);
+
+ return opp_table;
+}
+EXPORT_SYMBOL_GPL(devm_pm_opp_attach_genpd);
+
/**
* dev_pm_opp_xlate_performance_state() - Find required OPP's pstate for src_table.
* @src_table: OPP table which has dst_table as one of its required OPP table.