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>,
Enric Balletbo i Serra <enric.balletbo@collabora.com>,
Matthias Kaehlcke <mka@chromium.org>
Subject: [PATCH v2 01/11] PM / devfreq: Init user limits from OPP limits, not viceversa
Date: Thu, 7 Jun 2018 11:12:04 -0700 [thread overview]
Message-ID: <20180607181214.30338-2-mka@chromium.org> (raw)
In-Reply-To: <20180607181214.30338-1-mka@chromium.org>
Commit ab8f58ad72c4 ("PM / devfreq: Set min/max_freq when adding
the devfreq device") introduced the initialization of the user
limits min/max_freq from the lowest/highest available OPPs. Later
commit f1d981eaecf8 ("PM / devfreq: Use the available min/max
frequency") added scaling_min/max_freq, which actually represent
the frequencies of the lowest/highest available OPP. scaling_min/
max_freq are initialized with the values from min/max_freq, which
is totally correct in the context, but a bit awkward to read.
Swap the initialization and assign scaling_min/max_freq with the
OPP freqs and then the user limts min/max_freq with scaling_min/
max_freq.
Needless to say that this change is a NOP, intended to improve
readability.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
---
Changes in v2:
- added 'Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>' tag
drivers/devfreq/devfreq.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index fe2af6aa88fc..0057ef5b0a98 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -604,21 +604,21 @@ struct devfreq *devfreq_add_device(struct device *dev,
mutex_lock(&devfreq->lock);
}
- devfreq->min_freq = find_available_min_freq(devfreq);
- if (!devfreq->min_freq) {
+ devfreq->scaling_min_freq = find_available_min_freq(devfreq);
+ if (!devfreq->scaling_min_freq) {
mutex_unlock(&devfreq->lock);
err = -EINVAL;
goto err_dev;
}
- devfreq->scaling_min_freq = devfreq->min_freq;
+ devfreq->min_freq = devfreq->scaling_min_freq;
- devfreq->max_freq = find_available_max_freq(devfreq);
- if (!devfreq->max_freq) {
+ devfreq->scaling_max_freq = find_available_max_freq(devfreq);
+ if (!devfreq->scaling_max_freq) {
mutex_unlock(&devfreq->lock);
err = -EINVAL;
goto err_dev;
}
- devfreq->scaling_max_freq = devfreq->max_freq;
+ devfreq->max_freq = devfreq->scaling_max_freq;
dev_set_name(&devfreq->dev, "devfreq%d",
atomic_inc_return(&devfreq_no));
--
2.18.0.rc1.242.g61856ae69a-goog
next prev parent reply other threads:[~2018-06-07 18:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-07 18:12 [PATCH v2 00/11] Add throttler driver for non-thermal throttling Matthias Kaehlcke
2018-06-07 18:12 ` Matthias Kaehlcke [this message]
2018-06-07 18:12 ` [PATCH v2 02/11] PM / devfreq: Fix handling of min/max_freq == 0 Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 03/11] PM / devfreq: Don't adjust to user limits in governors Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 04/11] PM / devfreq: Add struct devfreq_policy Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 05/11] PM / devfreg: Add support for policy notifiers Matthias Kaehlcke
2018-06-08 23:21 ` kbuild test robot
2018-06-09 1:16 ` kbuild test robot
2018-06-07 18:12 ` [PATCH v2 06/11] PM / devfreq: Make update_devfreq() public Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 07/11] PM / devfreq: export devfreq_class Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 08/11] dt-bindings: PM / OPP: add opp-throttlers property Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 09/11] misc: throttler: Add core support for non-thermal throttling Matthias Kaehlcke
2018-06-09 4:34 ` kbuild test robot
2018-06-12 1:49 ` Brian Norris
2018-06-12 17:11 ` Matthias Kaehlcke
2018-06-12 20:00 ` Brian Norris
2018-06-13 1:48 ` Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 10/11] dt-bindings: misc: add bindings for cros_ec_throttler Matthias Kaehlcke
2018-06-12 19:10 ` Rob Herring
2018-06-12 20:40 ` Brian Norris
2018-06-13 2:00 ` Matthias Kaehlcke
2018-06-07 18:12 ` [PATCH v2 11/11] misc: throttler: Add Chrome OS EC throttler Matthias Kaehlcke
2018-06-08 14:09 ` Enric Balletbo i Serra
2018-06-08 15:56 ` Matthias Kaehlcke
2018-06-28 18:52 ` [PATCH v2 00/11] Add throttler driver for non-thermal throttling Pavel Machek
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