From: Chanwoo Choi <cw00.choi@samsung.com>
To: myungjoo.ham@samsung.com, kyungmin.park@samsung.com,
k.kozlowski@samsung.com, kgene@kernel.org,
s.nawrocki@samsung.com, tomasz.figa@gmail.com
Cc: rjw@rjwysocki.net, robh+dt@kernel.org, pawel.moll@arm.com,
mark.rutland@arm.com, ijc+devicetree@hellion.org.uk,
galak@codeaurora.org, linux@arm.linux.org.uk,
linux.amoon@gmail.com, m.reichl@fivetechno.de,
tjakobi@math.uni-bielefeld.de, inki.dae@samsung.com,
linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 0/7] PM / devfreq: Add NoCP devfreq-event and support busfreq on exyno5422-odroidxu3
Date: Mon, 11 Apr 2016 13:15:37 +0900 [thread overview]
Message-ID: <570B24E9.5020708@samsung.com> (raw)
In-Reply-To: <1460091646-28701-1-git-send-email-cw00.choi@samsung.com>
Dear all,
On 2016년 04월 08일 14:00, Chanwoo Choi wrote:
> This patchset support the AMBA bus frequency scaling on Exynos5422-based
> Odroid-XU3 board. But, this series only support the bus frequency scaling
> for INT (Internal) block using VDD_INT power line.
>
> Also, to support the bus frequency scaling for Exynos542x SoC,
> Exynos542x SoC has the specific 'NoC (Network on Chip) Probe' device
> to measure the transfered data traffic on NoC (Network on Chip)
> instead of PPMU (Platform Performance Monitoring Unit). NoC Probe device
> provide the utilization for INT block of Exynos542x SoC.
>
> The generic exynos-bus frequency driver uses the 'NoC Probe' devfreq-event
> device (drivers/devfreq/event/exynos-nocp.c) without any modification.
> Just add the phandle of 'NoC Probe' dt node to bus dt node.
>
> Depend on:
> This patchset depends on patch[1] which support the generic exynos-bus
> frequency driver.
>
> [1] https://lkml.org/lkml/2016/4/8/14
> - [PATCH v8 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor
The dependency of these patch-set is changed from patches[1] to patches[2].
Because patches[1] has the possible recursive locking issue. Patches[2] fix this issue.
[2] http://www.spinics.net/lists/arm-kernel/msg495976.html
- [PATCH v9 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor
[snip]
Best Regards,
Chanwoo Choi
prev parent reply other threads:[~2016-04-11 4:15 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-08 5:00 [PATCH 0/7] PM / devfreq: Add NoCP devfreq-event and support busfreq on exyno5422-odroidxu3 Chanwoo Choi
2016-04-08 5:00 ` [PATCH 1/7] PM / devfreq: event: Add new Exynos NoC probe driver Chanwoo Choi
2016-04-12 8:07 ` Krzysztof Kozlowski
2016-04-15 5:13 ` Chanwoo Choi
2016-04-08 5:00 ` [PATCH 2/7] PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus Chanwoo Choi
2016-04-11 15:45 ` Rob Herring
2016-04-15 6:08 ` Chanwoo Choi
2016-04-08 5:00 ` [PATCH 3/7] ARM: dts: Add NoC Probe dt node for Exynos542x SoC Chanwoo Choi
2016-04-12 8:14 ` Krzysztof Kozlowski
2016-04-14 5:48 ` Chanwoo Choi
2016-04-08 5:00 ` [PATCH 4/7] dt-bindings: clock: Add the clock id for ACLK clock of " Chanwoo Choi
2016-04-12 11:29 ` Krzysztof Kozlowski
2016-04-08 5:00 ` [PATCH 5/7] clk: samsung: exynos542x: Add the clock id for ACLK Chanwoo Choi
2016-04-12 11:25 ` Krzysztof Kozlowski
2016-04-13 6:20 ` Tomasz Figa
2016-04-14 6:28 ` Chanwoo Choi
2016-04-08 5:00 ` [PATCH 6/7] ARM: dts: Add bus nodes using VDD_INT for Exynos542x SoC Chanwoo Choi
2016-04-12 10:53 ` Krzysztof Kozlowski
2016-04-13 23:16 ` Chanwoo Choi
2016-04-08 5:00 ` [PATCH 7/7] ARM: dts: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3 Chanwoo Choi
2016-04-12 10:59 ` Krzysztof Kozlowski
2016-04-13 23:14 ` Chanwoo Choi
2016-04-08 12:55 ` [PATCH 0/7] PM / devfreq: Add NoCP devfreq-event and support busfreq on exyno5422-odroidxu3 Markus Reichl
2016-04-08 18:25 ` Chanwoo Choi
2016-04-08 18:11 ` Anand Moon
2016-04-08 18:24 ` Chanwoo Choi
2016-04-11 2:16 ` Chanwoo Choi
2016-04-11 4:01 ` Anand Moon
2016-04-11 4:03 ` Chanwoo Choi
2016-04-11 4:15 ` Chanwoo Choi [this message]
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