linux-kernel - [PATCH 4/5] OPP: Use generic key finding helpers for level key

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Message-Id: <af798b8c4b87d5eb360d6184906fa6b7490768d8.1654235445.git.viresh.kumar@linaro.org>
Date:   Fri,  3 Jun 2022 11:50:18 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>, linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] OPP: Use generic key finding helpers for level key

Use the recently added generic key findings helpers to find level key
values.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/opp/core.c | 60 +++-------------------------------------------
 1 file changed, 3 insertions(+), 57 deletions(-)

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 2e6cb2abf0b9..d8a91900d8a9 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -650,36 +650,9 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor);
  * The callers are required to call dev_pm_opp_put() for the returned OPP after
  * use.
  */
-struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev,
-					       unsigned int level)
+struct dev_pm_opp *dev_pm_opp_find_level_exact(struct device *dev, unsigned int level)
 {
-	struct opp_table *opp_table;
-	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
-
-	opp_table = _find_opp_table(dev);
-	if (IS_ERR(opp_table)) {
-		int r = PTR_ERR(opp_table);
-
-		dev_err(dev, "%s: OPP table not found (%d)\n", __func__, r);
-		return ERR_PTR(r);
-	}
-
-	mutex_lock(&opp_table->lock);
-
-	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
-		if (temp_opp->level == level) {
-			opp = temp_opp;
-
-			/* Increment the reference count of OPP */
-			dev_pm_opp_get(opp);
-			break;
-		}
-	}
-
-	mutex_unlock(&opp_table->lock);
-	dev_pm_opp_put_opp_table(opp_table);
-
-	return opp;
+	return _find_key_exact(dev, level, 0, true, _read_level);
 }
 EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_exact);
 
@@ -701,34 +674,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_exact);
 struct dev_pm_opp *dev_pm_opp_find_level_ceil(struct device *dev,
 					      unsigned int *level)
 {
-	struct opp_table *opp_table;
-	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
-
-	opp_table = _find_opp_table(dev);
-	if (IS_ERR(opp_table)) {
-		int r = PTR_ERR(opp_table);
-
-		dev_err(dev, "%s: OPP table not found (%d)\n", __func__, r);
-		return ERR_PTR(r);
-	}
-
-	mutex_lock(&opp_table->lock);
-
-	list_for_each_entry(temp_opp, &opp_table->opp_list, node) {
-		if (temp_opp->available && temp_opp->level >= *level) {
-			opp = temp_opp;
-			*level = opp->level;
-
-			/* Increment the reference count of OPP */
-			dev_pm_opp_get(opp);
-			break;
-		}
-	}
-
-	mutex_unlock(&opp_table->lock);
-	dev_pm_opp_put_opp_table(opp_table);
-
-	return opp;
+	return _find_key_ceil(dev, (unsigned long *)level, 0, true, _read_level);
 }
 EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil);
 
-- 
2.31.1.272.g89b43f80a514