From: Kamil Konieczny <k.konieczny@samsung.com>
To: k.konieczny@samsung.com
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Krzysztof Kozlowski <krzk@kernel.org>,
Kyungmin Park <kyungmin.park@samsung.com>,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Marek Szyprowski <m.szyprowski@samsung.com>,
MyungJoo Ham <myungjoo.ham@samsung.com>
Subject: [PATCH 3/4] PM / devfreq: Kconfig: add DEVFREQ_DELAYED_TIMER option
Date: Mon, 9 Dec 2019 15:44:24 +0100 [thread overview]
Message-ID: <20191209144425.13321-4-k.konieczny@samsung.com> (raw)
In-Reply-To: <20191209144425.13321-1-k.konieczny@samsung.com>
Add Kconfig option DEVFREQ_DELAYED_TIMER. If set, devfreq workqueue
will use delayed timer from its start.
Signed-off-by: Kamil Konieczny <k.konieczny@samsung.com>
---
drivers/devfreq/Kconfig | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index 38a94df749a2..c799917c34c9 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -74,6 +74,18 @@ config DEVFREQ_GOV_PASSIVE
through sysfs entries. The passive governor recommends that
devfreq device uses the OPP table to get the frequency/voltage.
+comment "DEVFREQ Options"
+
+config DEVFREQ_DELAYED_TIMER
+ bool "Use delayed timer in Simple Ondemand Governor"
+ default false
+ help
+ Simple Ondemand Governor uses polling for reading buses counters.
+ A default timer used is deferred, which saves power, but can
+ miss increased demand for higher bus frequency if timer was
+ assigned to idle cpu. If you want to change this to delayed
+ timer at the cost of more power used, say Yes here.
+
comment "DEVFREQ Drivers"
config ARM_EXYNOS_BUS_DEVFREQ
--
2.24.0
next prev parent reply other threads:[~2019-12-09 14:44 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191209144440eucas1p10fc74a8cbc07df72bf1bcd52a7260c42@eucas1p1.samsung.com>
2019-12-09 14:44 ` [PATCH 0/4] PM / devfreq: add possibility for delayed work Kamil Konieczny
[not found] ` <CGME20191209144441eucas1p16945780c1a1ff3302a233414ae6aace2@eucas1p1.samsung.com>
2019-12-09 14:44 ` [PATCH 1/4] PM / devfreq: reuse system workqueue machanism Kamil Konieczny
2019-12-10 1:41 ` Chanwoo Choi
2019-12-10 7:28 ` Kamil Konieczny
2019-12-10 7:53 ` Chanwoo Choi
2019-12-10 9:28 ` Kamil Konieczny
2019-12-10 9:42 ` Chanwoo Choi
[not found] ` <CGME20191209144441eucas1p2ccd371e5861e8c0a3948cdc6640ad0d5@eucas1p2.samsung.com>
2019-12-09 14:44 ` [PATCH 2/4] PM / devfreq: add possibility for delayed work Kamil Konieczny
2019-12-09 19:27 ` Matthias Kaehlcke
2019-12-10 10:15 ` Kamil Konieczny
2019-12-10 1:47 ` Chanwoo Choi
2019-12-10 9:03 ` Kamil Konieczny
2019-12-10 9:25 ` Chanwoo Choi
2020-01-20 14:20 ` Kamil Konieczny
[not found] ` <CGME20191209144442eucas1p1e4f5cf4a1716262e2b6715fb41876f91@eucas1p1.samsung.com>
2019-12-09 14:44 ` Kamil Konieczny [this message]
2019-12-09 19:34 ` [PATCH 3/4] PM / devfreq: Kconfig: add DEVFREQ_DELAYED_TIMER option Matthias Kaehlcke
2019-12-10 9:39 ` Kamil Konieczny
2019-12-10 1:54 ` Chanwoo Choi
[not found] ` <CGME20191209144442eucas1p214c553519b7a9d3d005802984bc6fb31@eucas1p2.samsung.com>
2019-12-09 14:44 ` [PATCH 4/4] PM / devfreq: use delayed work if DEVFREQ_DELAYED_TIMER set Kamil Konieczny
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