Re: [RFC PATCH 01/15] PM / devfreq: exynos: Add generic exynos bus frequency driver

[Chanwoo Choi]

Hi Anand,

On 2015ë 11ì 27ì 02:17, Anand Moon wrote:
> Hi Chanwoo,
> 
> On 26 November 2015 at 21:42, Chanwoo Choi <cwchoi00@xxxxxxxxx> wrote:
>> On Thu, Nov 26, 2015 at 11:00 PM, MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx> wrote:
>>> On Thu, Nov 26, 2015 at 10:47 PM, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> 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@xxxxxxxxxxx>
>>>> ---
>>>>  drivers/devfreq/Kconfig             |  15 ++
>>>>  drivers/devfreq/Makefile            |   1 +
>>>>  drivers/devfreq/exynos/Makefile     |   1 +
>>>>  drivers/devfreq/exynos/exynos-bus.c | 443 ++++++++++++++++++++++++++++++++++++
>>>>  4 files changed, 460 insertions(+)
>>>>  create mode 100644 drivers/devfreq/exynos/exynos-bus.c
>>>>
>>>
>>> Are we finally getting a common Exynos bus driver with full DT support?
>>> (can this replace both Exynos4/5 drivers and support Exynos7 series?)
>>
>> Yes.
>> This patch-set would support all Exynos SoCs for bus frequency driver.
>> To make sure the support for Exynos7 series, I need to check the TRM
>> document of Exynos7.  I think it is possible for support Exynos7.
>>
>> I'm going to test this driver on various Exynos-based board.
>>
>> Regards,
>> Chanwoo Choi
> 
> Please do consider Exynos 542x series as well.

Sure. I'll to test it on Exynos5422-based Odroid-XU3.

Regards,
Chanwoo Choi

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