From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> To: "Rafael J. Wysocki" <rjw@rjwysocki.net>, Pavel Machek <pavel@ucw.cz>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Stephen Boyd <sboyd@kernel.org>, Taniya Das <tdas@codeaurora.org>, Michael Turquette <mturquette@baylibre.com>, Andy Gross <agross@kernel.org>, Bjorn Andersson <bjorn.andersson@linaro.org> Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v2 1/5] PM: runtime: add devm_pm_runtime_enable helper Date: Wed, 28 Jul 2021 17:24:41 +0300 [thread overview] Message-ID: <20210728142445.774158-2-dmitry.baryshkov@linaro.org> (raw) In-Reply-To: <20210728142445.774158-1-dmitry.baryshkov@linaro.org> Add helper function handling typical driver action: call pm_runtime_enable at the probe() time and disable it during remove(). Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/base/power/runtime.c | 17 +++++++++++++++++ include/linux/pm_runtime.h | 4 ++++ 2 files changed, 21 insertions(+) diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 8a66eaf731e4..ec94049442b9 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -1447,6 +1447,23 @@ void pm_runtime_enable(struct device *dev) } EXPORT_SYMBOL_GPL(pm_runtime_enable); +static void pm_runtime_disable_action(void *data) +{ + pm_runtime_disable(data); +} + +/** + * devm_pm_runtime_enable - devres-enabled version of pm_runtime_enable. + * @dev: Device to handle. + */ +int devm_pm_runtime_enable(struct device *dev) +{ + pm_runtime_enable(dev); + + return devm_add_action_or_reset(dev, pm_runtime_disable_action, dev); +} +EXPORT_SYMBOL_GPL(devm_pm_runtime_enable); + /** * pm_runtime_forbid - Block runtime PM of a device. * @dev: Device to handle. diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index aab8b35e9f8a..222da43b7096 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -59,6 +59,8 @@ extern void pm_runtime_put_suppliers(struct device *dev); extern void pm_runtime_new_link(struct device *dev); extern void pm_runtime_drop_link(struct device_link *link); +extern int devm_pm_runtime_enable(struct device *dev); + /** * pm_runtime_get_if_in_use - Conditionally bump up runtime PM usage counter. * @dev: Target device. @@ -253,6 +255,8 @@ static inline void __pm_runtime_disable(struct device *dev, bool c) {} static inline void pm_runtime_allow(struct device *dev) {} static inline void pm_runtime_forbid(struct device *dev) {} +static inline int devm_pm_runtime_enable(struct device *dev) { return 0; } + static inline void pm_suspend_ignore_children(struct device *dev, bool enable) {} static inline void pm_runtime_get_noresume(struct device *dev) {} static inline void pm_runtime_put_noidle(struct device *dev) {} -- 2.30.2
next prev parent reply other threads:[~2021-07-28 14:25 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-28 14:24 [PATCH v2 0/5] PM: add two devres helpers and use them in qcom cc Dmitry Baryshkov 2021-07-28 14:24 ` Dmitry Baryshkov [this message] 2021-07-28 20:04 ` [PATCH v2 1/5] PM: runtime: add devm_pm_runtime_enable helper Bjorn Andersson 2021-07-28 14:24 ` [PATCH v2 2/5] PM: clk: add devm_pm_clk_create helper Dmitry Baryshkov 2021-07-28 20:05 ` Bjorn Andersson 2021-07-28 14:24 ` [PATCH v2 3/5] clk: qcom: use devm_pm_runtime_enable and devm_pm_clk_create Dmitry Baryshkov 2021-07-28 15:00 ` Bjorn Andersson 2021-07-29 14:28 ` Dmitry Baryshkov 2021-07-28 14:24 ` [PATCH v2 4/5] clk: qcom: use common code for qcom_cc_probe_by_index Dmitry Baryshkov 2021-07-28 14:24 ` [PATCH v2 5/5] clk: qcom: move pm_clk functionality into common code Dmitry Baryshkov
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