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From: Matthias Kaehlcke <mka@chromium.org> To: MyungJoo Ham <myungjoo.ham@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com>, Chanwoo Choi <cw00.choi@samsung.com>, Arnd Bergmann <arnd@arndb.de>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Brian Norris <briannorris@chromium.org>, Douglas Anderson <dianders@chromium.org>, Matthias Kaehlcke <mka@chromium.org> Subject: [PATCH 08/11] PM / devfreq: Make update_devfreq() public Date: Fri, 25 May 2018 13:30:40 -0700 [thread overview] Message-ID: <20180525203043.249193-9-mka@chromium.org> (raw) In-Reply-To: <20180525203043.249193-1-mka@chromium.org> Currently update_devfreq() is only visible to devfreq governors outside of devfreq.c. Make it public to allow drivers that adjust devfreq policies to cause a re-evaluation of the frequency after a policy change. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> --- drivers/devfreq/governor.h | 3 --- include/linux/devfreq.h | 8 ++++++++ 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/devfreq/governor.h b/drivers/devfreq/governor.h index cfc50a61a90d..608e7549465b 100644 --- a/drivers/devfreq/governor.h +++ b/drivers/devfreq/governor.h @@ -54,9 +54,6 @@ struct devfreq_governor { unsigned int event, void *data); }; -/* Caution: devfreq->lock must be locked before calling update_devfreq */ -extern int update_devfreq(struct devfreq *devfreq); - extern void devfreq_monitor_start(struct devfreq *devfreq); extern void devfreq_monitor_stop(struct devfreq *devfreq); extern void devfreq_monitor_suspend(struct devfreq *devfreq); diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h index 4a6ed61bbe49..561ab1d5e8d6 100644 --- a/include/linux/devfreq.h +++ b/include/linux/devfreq.h @@ -222,6 +222,14 @@ extern void devm_devfreq_remove_device(struct device *dev, extern int devfreq_suspend_device(struct devfreq *devfreq); extern int devfreq_resume_device(struct devfreq *devfreq); +/** + * update_devfreq() - Reevaluate the device and configure frequency + * @devfreq: the devfreq device + * + * Note: devfreq->lock must be held + */ +extern int update_devfreq(struct devfreq *devfreq); + /* Helper functions for devfreq user device driver with OPP. */ extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq, u32 flags); -- 2.17.0.921.gf22659ad46-goog
next prev parent reply other threads:[~2018-05-25 20:31 UTC|newest] Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-05-25 20:30 [PATCH 00/11] Add throttler driver for non-thermal throttling Matthias Kaehlcke 2018-05-25 20:30 ` [PATCH 01/11] PM / devfreq: Init user limits from OPP limits, not viceversa Matthias Kaehlcke 2018-05-28 5:26 ` Chanwoo Choi 2018-05-29 18:06 ` Matthias Kaehlcke 2018-05-25 20:30 ` [PATCH 02/11] PM / devfreq: Fix handling of min/max_freq == 0 Matthias Kaehlcke 2018-05-28 6:37 ` Chanwoo Choi 2018-05-29 18:57 ` Matthias Kaehlcke 2018-05-30 8:04 ` Chanwoo Choi 2018-05-30 21:13 ` Matthias Kaehlcke 2018-06-05 9:40 ` Chanwoo Choi 2018-05-25 20:30 ` [PATCH 03/11] PM / devfreq: Remove check for df->max_freq == 0 from governors Matthias Kaehlcke 2018-05-28 5:27 ` Chanwoo Choi 2018-05-25 20:30 ` [PATCH 04/11] PM / devfreq: Remove redundant frequency adjustment " Matthias Kaehlcke 2018-05-28 5:36 ` Chanwoo Choi 2018-05-25 20:30 ` [PATCH 05/11] PM / devfreq: governors: Return device frequency limits instead of user limits Matthias Kaehlcke 2018-05-28 6:56 ` Chanwoo Choi 2018-05-25 20:30 ` [PATCH 06/11] PM / devfreq: Add struct devfreq_policy Matthias Kaehlcke 2018-05-25 20:30 ` [PATCH 07/11] PM / devfreg: Add support policy notifiers Matthias Kaehlcke 2018-05-25 20:30 ` Matthias Kaehlcke [this message] 2018-05-25 20:30 ` [PATCH 09/11] misc: throttler: Add core support for non-thermal throttling Matthias Kaehlcke 2018-05-28 7:32 ` Chanwoo Choi 2018-05-29 20:57 ` Matthias Kaehlcke 2018-05-30 8:08 ` Chanwoo Choi 2018-05-28 8:08 ` Greg Kroah-Hartman 2018-05-29 21:30 ` Matthias Kaehlcke 2018-05-25 20:30 ` [PATCH 10/11] dt-bindings: misc: add bindings for throttler Matthias Kaehlcke 2018-05-31 16:31 ` Rob Herring 2018-05-31 18:34 ` Matthias Kaehlcke 2018-05-31 20:04 ` Rob Herring 2018-05-31 21:10 ` Matthias Kaehlcke 2018-05-25 20:30 ` [PATCH 11/11] misc/throttler: Add Chrome OS EC throttler Matthias Kaehlcke 2018-05-31 9:05 ` Enric Balletbo Serra 2018-05-31 17:33 ` Matthias Kaehlcke [not found] ` <CGME20180525203120epcas2p429d60dc21e16f0b53c58e7b1f942858f@epcms1p8> 2018-05-28 3:59 ` [PATCH 02/11] PM / devfreq: Fix handling of min/max_freq == 0 MyungJoo Ham [not found] ` <CGME20180525203122epcas3p42a494949f50aa933355840b7e46bb0fe@epcms1p2> 2018-05-28 4:51 ` [PATCH 03/11] PM / devfreq: Remove check for df->max_freq == 0 from governors MyungJoo Ham [not found] ` <CGME20180525203124epcas2p2db3f1996b33348f19a6a91cee55abb0b@epcms1p1> 2018-05-28 4:57 ` [PATCH 04/11] PM / devfreq: Remove redundant frequency adjustment " MyungJoo Ham [not found] ` <CGME20180525203125epcas3p46c7cac352ede4b0ba5d2b36bc32ad566@epcms1p8> 2018-05-28 5:04 ` [PATCH 05/11] PM / devfreq: governors: Return device frequency limits instead of user limits MyungJoo Ham 2018-05-29 19:32 ` Matthias Kaehlcke [not found] ` <CGME20180525203128epcas5p138dbf89498c03bc2a9221aa662001fd4@epcms1p3> 2018-05-28 5:19 ` [PATCH 07/11] PM / devfreg: Add support policy notifiers MyungJoo Ham 2018-05-29 20:02 ` Matthias Kaehlcke [not found] ` <CGME20180525203128epcas2p21a65a88fed7838221d02f6419f58bf26@epcms1p1> 2018-05-28 5:24 ` [PATCH 08/11] PM / devfreq: Make update_devfreq() public MyungJoo Ham
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