From: Chanwoo Choi <cw00.choi@samsung.com> To: lukasz.luba@arm.com, k.konieczny@samsung.com, krzk@kernel.org, kgene@kernel.org Cc: s.nawrocki@samsung.com, willy.mh.wolff.ml@gmail.com, b.zolnierkie@samsung.com, cw00.choi@samsung.com, chanwoo@kernel.org, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 0/2] PM / devfreq: Add delayed timer for polling Date: Thu, 9 Jul 2020 14:45:02 +0900 [thread overview] Message-ID: <20200709054504.656-1-cw00.choi@samsung.com> (raw) In-Reply-To: CGME20200709053339epcas1p23fb1c080b21c758940514c4672949cfa@epcas1p2.samsung.com Add the delayed timer to devfreq framework in order to support the periodical polling mode without stop caused by CPU idle state. Some Non-CPU device must need to monitor the device status like utilization regardless of CPU state. - patch1 explains the detailed reason why the delayed timer is required. - patch2 initializes that exynos5422-dmc device use delayed timer as default instead of deferrable timer. Changes from v2: - Add reviewed-by tag - Fix typo on patch description - Remove 'RFC' work from patch title - Check whether 'df->governor' is NULL or not on timer_store() Chanwoo Choi (2): PM / devfreq: Add support delayed timer for polling mode memory: samsung: exynos5422-dmc: Use delayed timer as default Documentation/ABI/testing/sysfs-class-devfreq | 12 +++ drivers/devfreq/devfreq.c | 86 ++++++++++++++++++- drivers/memory/samsung/exynos5422-dmc.c | 1 + include/linux/devfreq.h | 9 ++ 4 files changed, 107 insertions(+), 1 deletion(-) -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Chanwoo Choi <cw00.choi@samsung.com> To: lukasz.luba@arm.com, k.konieczny@samsung.com, krzk@kernel.org, kgene@kernel.org Cc: willy.mh.wolff.ml@gmail.com, linux-samsung-soc@vger.kernel.org, s.nawrocki@samsung.com, b.zolnierkie@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, cw00.choi@samsung.com, kyungmin.park@samsung.com, myungjoo.ham@samsung.com, chanwoo@kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 0/2] PM / devfreq: Add delayed timer for polling Date: Thu, 9 Jul 2020 14:45:02 +0900 [thread overview] Message-ID: <20200709054504.656-1-cw00.choi@samsung.com> (raw) In-Reply-To: CGME20200709053339epcas1p23fb1c080b21c758940514c4672949cfa@epcas1p2.samsung.com Add the delayed timer to devfreq framework in order to support the periodical polling mode without stop caused by CPU idle state. Some Non-CPU device must need to monitor the device status like utilization regardless of CPU state. - patch1 explains the detailed reason why the delayed timer is required. - patch2 initializes that exynos5422-dmc device use delayed timer as default instead of deferrable timer. Changes from v2: - Add reviewed-by tag - Fix typo on patch description - Remove 'RFC' work from patch title - Check whether 'df->governor' is NULL or not on timer_store() Chanwoo Choi (2): PM / devfreq: Add support delayed timer for polling mode memory: samsung: exynos5422-dmc: Use delayed timer as default Documentation/ABI/testing/sysfs-class-devfreq | 12 +++ drivers/devfreq/devfreq.c | 86 ++++++++++++++++++- drivers/memory/samsung/exynos5422-dmc.c | 1 + include/linux/devfreq.h | 9 ++ 4 files changed, 107 insertions(+), 1 deletion(-) -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next parent reply other threads:[~2020-07-09 5:33 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20200709053339epcas1p23fb1c080b21c758940514c4672949cfa@epcas1p2.samsung.com> 2020-07-09 5:45 ` Chanwoo Choi [this message] 2020-07-09 5:45 ` [PATCH v2 0/2] PM / devfreq: Add delayed timer for polling Chanwoo Choi [not found] ` <CGME20200709053339epcas1p10278823f18b4650351f4e6f680d3d4a0@epcas1p1.samsung.com> 2020-07-09 5:45 ` [PATCH v2 1/2] PM / devfreq: Add support delayed timer for polling mode Chanwoo Choi 2020-07-09 5:45 ` Chanwoo Choi [not found] ` <CGME20200709053340epcas1p3bc307da98530bc166c7d354a62e4c894@epcas1p3.samsung.com> 2020-07-09 5:45 ` [PATCH v2 2/2] memory: samsung: exynos5422-dmc: Use delayed timer as default Chanwoo Choi 2020-07-09 5:45 ` Chanwoo Choi 2020-07-13 7:24 ` [PATCH v2 0/2] PM / devfreq: Add delayed timer for polling Chanwoo Choi 2020-07-13 7:24 ` Chanwoo Choi
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