Re: [PATCH v3 01/20] PM / devfreq: exynos: Add generic exynos bus frequency driver

From: Chanwoo Choi <cw00.choi@samsung.com>
To: Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	myungjoo.ham@samsung.com, kgene@kernel.org
Cc: kyungmin.park@samsung.com, 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, tjakobi@math.uni-bielefeld.de,
	linux.amoon@gmail.com, linux-kernel@vger.kernel.org,
	linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: Re: [PATCH v3 01/20] PM / devfreq: exynos: Add generic exynos bus frequency driver
Date: Mon, 14 Dec 2015 16:14:01 +0900	[thread overview]
Message-ID: <566E6C39.6080703@samsung.com> (raw)
In-Reply-To: <566A834C.3040103@samsung.com>

Hi Krzysztof and Myungjoo,

On 2015년 12월 11일 17:03, Krzysztof Kozlowski wrote:
> On 11.12.2015 16:52, Chanwoo Choi wrote:
>> Dear MyungJoo,
>>
>> Almost device tree patches in this series are reviewed by Exynos maintainer.
>> Could you please review this series?
> 
> Are there any objections to merging DT patches through Samsung-soc?
> 
> Looking at the code, there are no dependencies between DT and drivers,
> right?

Yes.
There is no dependency between exynos-bus.c patches and DT patches.
If the design concept of exynos-bus.c don't be changed,
there is no problem to merge the DT patches to samsung-soc tree.

Best Regards,
Chanwoo Choi

> 
> Best regards,
> Krzysztof
> 
>>
>> Best Regards,
>> Chanwoo Choi
>>
>> On 2015년 12월 11일 14:07, Chanwoo Choi wrote:
>>> This patch adds the generic exynos bus frequency driver for AMBA AXI bus
>>> of sub-blocks in exynos SoC with DEVFREQ framework. The Samsung Exynos SoC
>>> have the common architecture for bus between DRAM and sub-blocks in SoC.
>>> This driver can support the generic bus frequency driver for Exynos SoCs.
>>>
>>> In devicetree, Each bus block has a bus clock, regulator, operation-point
>>> and devfreq-event devices which measure the utilization of each bus block.
>>>
>>> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
>>> [linux.amoon: Tested on Odroid U3]
>>> Tested-by: Anand Moon <linux.amoon@gmail.com>
>>> ---
>>>  drivers/devfreq/Kconfig             |  15 ++
>>>  drivers/devfreq/Makefile            |   1 +
>>>  drivers/devfreq/exynos/Makefile     |   1 +
>>>  drivers/devfreq/exynos/exynos-bus.c | 449 ++++++++++++++++++++++++++++++++++++
>>>  4 files changed, 466 insertions(+)
>>>  create mode 100644 drivers/devfreq/exynos/exynos-bus.c
> 
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