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Message-Id: <c585acc9d9f8434070d74e6209bef05ef8ad4729.1653564321.git.viresh.kumar@linaro.org>
Date: Thu, 26 May 2022 17:12:27 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
Stephen Boyd <sboyd@...nel.org>,
"Rafael J. Wysocki" <rafael@...nel.org>
Cc: Viresh Kumar <viresh.kumar@...aro.org>, linux-pm@...r.kernel.org,
Vincent Guittot <vincent.guittot@...aro.org>,
Rafael Wysocki <rjw@...ysocki.net>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
linux-kernel@...r.kernel.org
Subject: [PATCH 28/31] OPP: Remove dev_pm_opp_register_set_opp_helper() and friends
Now that everyone has migrated to dev_pm_opp_set_config(), remove the
public interface for dev_pm_opp_register_set_opp_helper() and friends.
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
drivers/opp/core.c | 89 ++++++++++--------------------------------
include/linux/pm_opp.h | 17 --------
2 files changed, 21 insertions(+), 85 deletions(-)
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index c2590c0c05a0..412af91d2039 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2200,7 +2200,7 @@ static void _opp_put_clkname(struct opp_table *opp_table)
}
/**
- * dev_pm_opp_register_set_opp_helper() - Register custom set OPP helper
+ * _opp_register_set_opp_helper() - Register custom set OPP helper
* @dev: Device for which the helper is getting registered.
* @set_opp: Custom set OPP helper.
*
@@ -2209,32 +2209,18 @@ static void _opp_put_clkname(struct opp_table *opp_table)
*
* This must be called before any OPPs are initialized for the device.
*/
-struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
- int (*set_opp)(struct dev_pm_set_opp_data *data))
+static int _opp_register_set_opp_helper(struct opp_table *opp_table,
+ struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data))
{
struct dev_pm_set_opp_data *data;
- struct opp_table *opp_table;
-
- if (!set_opp)
- return ERR_PTR(-EINVAL);
-
- opp_table = _add_opp_table(dev, false);
- if (IS_ERR(opp_table))
- return opp_table;
-
- /* This should be called before OPPs are initialized */
- if (WARN_ON(!list_empty(&opp_table->opp_list))) {
- dev_pm_opp_put_opp_table(opp_table);
- return ERR_PTR(-EBUSY);
- }
/* Another CPU that shares the OPP table has set the helper ? */
if (opp_table->set_opp)
- return opp_table;
+ return 0;
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
- return ERR_PTR(-ENOMEM);
+ return -ENOMEM;
mutex_lock(&opp_table->lock);
opp_table->set_opp_data = data;
@@ -2247,60 +2233,26 @@ struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
opp_table->set_opp = set_opp;
- return opp_table;
+ return 0;
}
-EXPORT_SYMBOL_GPL(dev_pm_opp_register_set_opp_helper);
/**
- * dev_pm_opp_unregister_set_opp_helper() - Releases resources blocked for
- * set_opp helper
- * @opp_table: OPP table returned from dev_pm_opp_register_set_opp_helper().
+ * _opp_unregister_set_opp_helper() - Releases resources blocked for set_opp helper
+ * @opp_table: OPP table returned from _opp_register_set_opp_helper().
*
* Release resources blocked for platform specific set_opp helper.
*/
-void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table)
-{
- if (unlikely(!opp_table))
- return;
-
- opp_table->set_opp = NULL;
-
- mutex_lock(&opp_table->lock);
- kfree(opp_table->set_opp_data);
- opp_table->set_opp_data = NULL;
- mutex_unlock(&opp_table->lock);
-
- dev_pm_opp_put_opp_table(opp_table);
-}
-EXPORT_SYMBOL_GPL(dev_pm_opp_unregister_set_opp_helper);
-
-static void devm_pm_opp_unregister_set_opp_helper(void *data)
-{
- dev_pm_opp_unregister_set_opp_helper(data);
-}
-
-/**
- * devm_pm_opp_register_set_opp_helper() - Register custom set OPP helper
- * @dev: Device for which the helper is getting registered.
- * @set_opp: Custom set OPP helper.
- *
- * This is a resource-managed version of dev_pm_opp_register_set_opp_helper().
- *
- * Return: 0 on success and errorno otherwise.
- */
-int devm_pm_opp_register_set_opp_helper(struct device *dev,
- int (*set_opp)(struct dev_pm_set_opp_data *data))
+static void _opp_unregister_set_opp_helper(struct opp_table *opp_table)
{
- struct opp_table *opp_table;
-
- opp_table = dev_pm_opp_register_set_opp_helper(dev, set_opp);
- if (IS_ERR(opp_table))
- return PTR_ERR(opp_table);
+ if (opp_table->set_opp) {
+ opp_table->set_opp = NULL;
- return devm_add_action_or_reset(dev, devm_pm_opp_unregister_set_opp_helper,
- opp_table);
+ mutex_lock(&opp_table->lock);
+ kfree(opp_table->set_opp_data);
+ opp_table->set_opp_data = NULL;
+ mutex_unlock(&opp_table->lock);
+ }
}
-EXPORT_SYMBOL_GPL(devm_pm_opp_register_set_opp_helper);
static void _opp_detach_genpd(struct opp_table *opp_table)
{
@@ -2513,9 +2465,11 @@ struct opp_table *dev_pm_opp_set_config(struct device *dev,
// Configure opp helper
if (config->set_opp) {
- ret = dev_pm_opp_register_set_opp_helper(dev, config->set_opp);
- if (IS_ERR(ret))
+ err = _opp_register_set_opp_helper(opp_table, dev, config->set_opp);
+ if (err) {
+ ret = ERR_PTR(err);
goto err;
+ }
}
// Configure supported hardware
@@ -2577,8 +2531,7 @@ void dev_pm_opp_clear_config(struct opp_table *opp_table)
_opp_put_supported_hw(opp_table);
- if (opp_table->set_opp)
- dev_pm_opp_unregister_set_opp_helper(opp_table);
+ _opp_unregister_set_opp_helper(opp_table);
if (opp_table->prop_name)
dev_pm_opp_put_prop_name(opp_table);
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 7afa8160590d..0ad60c7dca02 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -186,9 +186,6 @@ void dev_pm_opp_clear_config(struct opp_table *opp_table);
struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name);
void dev_pm_opp_put_prop_name(struct opp_table *opp_table);
-struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
-void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table);
-int devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
struct opp_table *dev_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs);
void dev_pm_opp_detach_genpd(struct opp_table *opp_table);
int devm_pm_opp_attach_genpd(struct device *dev, const char * const *names, struct device ***virt_devs);
@@ -363,20 +360,6 @@ static inline int dev_pm_opp_unregister_notifier(struct device *dev, struct noti
return -EOPNOTSUPP;
}
-static inline struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev,
- int (*set_opp)(struct dev_pm_set_opp_data *data))
-{
- return ERR_PTR(-EOPNOTSUPP);
-}
-
-static inline void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table) {}
-
-static inline int devm_pm_opp_register_set_opp_helper(struct device *dev,
- int (*set_opp)(struct dev_pm_set_opp_data *data))
-{
- return -EOPNOTSUPP;
-}
-
static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
{
return ERR_PTR(-EOPNOTSUPP);
--
2.31.1.272.g89b43f80a514
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