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[109.252.192.57]) by smtp.gmail.com with ESMTPSA id m24sm1484553ljj.62.2021.01.17.16.55.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Jan 2021 16:55:42 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mark Brown , Liam Girdwood , Ulf Hansson , Peter Geis , Nicolas Chauvet , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Nishanth Menon , Yangtao Li , Matt Merhar Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v3 08/12] opp: Add devm_pm_opp_register_set_opp_helper Date: Mon, 18 Jan 2021 03:55:20 +0300 Message-Id: <20210118005524.27787-9-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210118005524.27787-1-digetx@gmail.com> References: <20210118005524.27787-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Add resource-managed version of dev_pm_opp_register_set_opp_helper(). Tested-by: Peter Geis Tested-by: Nicolas Chauvet Tested-by: Matt Merhar Signed-off-by: Dmitry Osipenko --- drivers/opp/core.c | 34 ++++++++++++++++++++++++++++++++++ include/linux/pm_opp.h | 8 ++++++++ 2 files changed, 42 insertions(+) diff --git a/drivers/opp/core.c b/drivers/opp/core.c index fde2ec00ab0e..8e0d2193fd5f 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -2857,3 +2857,37 @@ int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp *opp) return ret; } EXPORT_SYMBOL_GPL(dev_pm_opp_set_voltage); + +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: pointer to 'struct opp_table' on success and errorno otherwise. + */ +struct opp_table * +devm_pm_opp_register_set_opp_helper(struct device *dev, + int (*set_opp)(struct dev_pm_set_opp_data *data)) +{ + struct opp_table *opp_table; + int err; + + opp_table = dev_pm_opp_register_set_opp_helper(dev, set_opp); + if (IS_ERR(opp_table)) + return opp_table; + + err = devm_add_action_or_reset(dev, devm_pm_opp_unregister_set_opp_helper, + opp_table); + if (err) + return ERR_PTR(err); + + return opp_table; +} +EXPORT_SYMBOL_GPL(devm_pm_opp_register_set_opp_helper); diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index e072148ae0e1..6de5853aaada 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -169,6 +169,7 @@ void dev_pm_opp_remove_table(struct device *dev); void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask); int dev_pm_opp_sync_regulators(struct device *dev); int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp *opp); +struct opp_table *devm_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data)); #else static inline struct opp_table *dev_pm_opp_get_opp_table(struct device *dev) { @@ -428,6 +429,13 @@ static inline int dev_pm_opp_set_voltage(struct device *dev, struct dev_pm_opp * return -ENOTSUPP; } +static inline struct opp_table * +devm_pm_opp_register_set_opp_helper(struct device *dev, + int (*set_opp)(struct dev_pm_set_opp_data *data)) +{ + return ERR_PTR(-ENOTSUPP); +} + #endif /* CONFIG_PM_OPP */ #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)