Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b7868f12 authored by Saravana Kannan's avatar Saravana Kannan Committed by Gerrit - the friendly Code Review server
Browse files

PM / devfreq: bw_hwmon: Add bw_hwmon_meas and bw_hwmon_update trace points 



Add trace points to log the measurements and the final decision made by the
bw_hwmon governor.

Change-Id: I834bec340f81f02fcccbd6d7568a301dc74dded5
Signed-off-by: default avatarSaravana Kannan <skannan@codeaurora.org>
parent d35f2ab6

drivers/devfreq/governor_bw_hwmon.c

+11 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.

 * Copyright (c) 2013-2015, 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 and
@@ -28,6 +28,7 @@ 
#include <linux/platform_device.h>

#include <linux/of.h>

#include <linux/devfreq.h>

#include <trace/events/power.h>

#include "governor.h"

#include "governor_bw_hwmon.h"
@@ -118,6 +119,10 @@ static unsigned long measure_bw_and_set_irq(struct hwmon_node *node) 
	preempt_enable();



	dev_dbg(hw->df->dev.parent, "BW MBps = %6lu, period = %u\n", mbps, us);

	trace_bw_hwmon_meas(dev_name(hw->df->dev.parent),

				mbps,

				us,

				0);



	return mbps;

}
@@ -141,6 +146,11 @@ static void compute_bw(struct hwmon_node *node, int mbps, 
	if (ab)

		*ab = roundup(new_bw, node->bw_step);

	*freq = (new_bw * 100) / node->io_percent;

	trace_bw_hwmon_update(dev_name(node->hw->df->dev.parent),

				new_bw,

				*freq,

				0,

				0);

}



static struct hwmon_node *find_hwmon_node(struct devfreq *df)