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Date: Fri, 1 Jan 2021 16:54:40 +0000 From: Yangtao Li <tiny.windzz@...il.com> To: myungjoo.ham@...sung.com, kyungmin.park@...sung.com, cw00.choi@...sung.com, krzk@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com, linux-imx@....com, digetx@...il.com, thierry.reding@...il.com, jonathanh@...dia.com, yuq825@...il.com, airlied@...ux.ie, daniel@...ll.ch, robdclark@...il.com, sean@...rly.run, robh@...nel.org, tomeu.vizoso@...labora.com, steven.price@....com, alyssa.rosenzweig@...labora.com, stanimir.varbanov@...aro.org, agross@...nel.org, bjorn.andersson@...aro.org, mchehab@...nel.org, lukasz.luba@....com, adrian.hunter@...el.com, ulf.hansson@...aro.org, vireshk@...nel.org, nm@...com, sboyd@...nel.org, broonie@...nel.org, gregkh@...uxfoundation.org, jirislaby@...nel.org, rjw@...ysocki.net, jcrouse@...eaurora.org, hoegsberg@...gle.com, eric@...olt.net, tzimmermann@...e.de, marijn.suijten@...ainline.org, gustavoars@...nel.org, emil.velikov@...labora.com, jonathan@...ek.ca, akhilpo@...eaurora.org, smasetty@...eaurora.org, airlied@...hat.com, masneyb@...tation.org, kalyan_t@...eaurora.org, tanmay@...eaurora.org, tiny.windzz@...il.com, ddavenport@...omium.org, jsanka@...eaurora.org, rnayak@...eaurora.org, tongtiangen@...wei.com, miaoqinglang@...wei.com, khsieh@...eaurora.org, abhinavk@...eaurora.org, chandanu@...eaurora.org, groeck@...omium.org, varar@...eaurora.org, mka@...omium.org, harigovi@...eaurora.org, rikard.falkeborn@...il.com, natechancellor@...il.com, georgi.djakov@...aro.org, akashast@...eaurora.org, parashar@...eaurora.org, dianders@...omium.org Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org, dri-devel@...ts.freedesktop.org, lima@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org, linux-media@...r.kernel.org, linux-mmc@...r.kernel.org, linux-spi@...r.kernel.org, linux-serial@...r.kernel.org Subject: [PATCH 04/31] opp: Add devres wrapper for dev_pm_opp_of_add_table Add devres wrapper for dev_pm_opp_of_add_table() to simplify driver code. Signed-off-by: Yangtao Li <tiny.windzz@...il.com> --- drivers/opp/of.c | 36 ++++++++++++++++++++++++++++++++++++ include/linux/pm_opp.h | 6 ++++++ 2 files changed, 42 insertions(+) diff --git a/drivers/opp/of.c b/drivers/opp/of.c index 03cb387236c4..50df483c7dc3 100644 --- a/drivers/opp/of.c +++ b/drivers/opp/of.c @@ -998,6 +998,42 @@ int dev_pm_opp_of_add_table(struct device *dev) } EXPORT_SYMBOL_GPL(dev_pm_opp_of_add_table); +static void devm_pm_opp_of_table_release(void *data) +{ + dev_pm_opp_of_remove_table(data); +} + +/** + * devm_pm_opp_of_add_table() - Initialize opp table from device tree + * @dev: device pointer used to lookup OPP table. + * + * Register the initial OPP table with the OPP library for given device. + * + * The opp_table structure will be freed after the device is destroyed. + * + * Return: + * 0 On success OR + * Duplicate OPPs (both freq and volt are same) and opp->available + * -EEXIST Freq are same and volt are different OR + * Duplicate OPPs (both freq and volt are same) and !opp->available + * -ENOMEM Memory allocation failure + * -ENODEV when 'operating-points' property is not found or is invalid data + * in device node. + * -ENODATA when empty 'operating-points' property is found + * -EINVAL when invalid entries are found in opp-v2 table + */ +int devm_pm_opp_of_add_table(struct device *dev) +{ + int ret; + + ret = dev_pm_opp_of_add_table(dev); + if (ret) + return ret; + + return devm_add_action_or_reset(dev, devm_pm_opp_of_table_release, dev); +} +EXPORT_SYMBOL_GPL(devm_pm_opp_of_add_table); + /** * dev_pm_opp_of_add_table_indexed() - Initialize indexed opp table from device tree * @dev: device pointer used to lookup OPP table. diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index e5260fc82ba1..e8bdac5f9555 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -398,6 +398,7 @@ static inline void dev_pm_opp_cpumask_remove_table(const struct cpumask *cpumask int dev_pm_opp_of_add_table(struct device *dev); int dev_pm_opp_of_add_table_indexed(struct device *dev, int index); void dev_pm_opp_of_remove_table(struct device *dev); +int devm_pm_opp_of_add_table(struct device *dev); int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask); void dev_pm_opp_of_cpumask_remove_table(const struct cpumask *cpumask); int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask); @@ -425,6 +426,11 @@ static inline void dev_pm_opp_of_remove_table(struct device *dev) { } +static inline int devm_pm_opp_of_add_table(struct device *dev) +{ + return -ENOTSUPP; +} + static inline int dev_pm_opp_of_cpumask_add_table(const struct cpumask *cpumask) { return -ENOTSUPP; -- 2.25.1
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