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Commit 09948665 authored by Matthias Kaehlcke's avatar Matthias Kaehlcke Committed by Sharat Masetty
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PM / devfreq: Make update_devfreq() public 



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.

Change-Id: I629c39eaa441a4d1cb675f73f0efb679e7a9e702
Signed-off-by: default avatarMatthias Kaehlcke <mka@chromium.org>
Acked-by: default avatarMyungJoo Ham <myungjoo.ham@samsung.com>
Patch-mainline: linux-pm @ 14/6/18, 12:47
Signed-off-by: default avatarAkhil P Oommen <akhilpo@codeaurora.org>
Signed-off-by: default avatarSharat Masetty <smasetty@codeaurora.org>
parent f5a70edb

drivers/devfreq/governor.h

+2 −3
Original line number Diff line number Diff line
@@ -4,6 +4,8 @@ 
 * Copyright (C) 2011 Samsung Electronics

 *	MyungJoo Ham <myungjoo.ham@samsung.com>

 *

 * Copyright (c) 2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.
@@ -25,9 +27,6 @@ 
#define DEVFREQ_GOV_SUSPEND			0x4

#define DEVFREQ_GOV_RESUME			0x5



/* 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);

include/linux/devfreq.h

+10 −0
Original line number Diff line number Diff line
@@ -5,6 +5,8 @@ 
 * Copyright (C) 2011 Samsung Electronics

 *	MyungJoo Ham <myungjoo.ham@samsung.com>

 *

 * Copyright (c) 2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.
@@ -201,6 +203,14 @@ 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);