linux-kernel - Re: [PATCH v2 1/3] clk: emev2: Add support for emev2 SMU clocks with DT

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Date:	Wed, 09 Oct 2013 08:10:57 +0200
From:	Ben Dooks <ben.dooks@...ethink.co.uk>
To:	Simon Horman <horms@...ge.net.au>
CC:	Magnus Damm <magnus.damm@...il.com>, takasi-y@....dti.ne.jp,
	SH-Linux <linux-sh@...r.kernel.org>,
	Shinya Kuribayashi <shinya.kuribayashi.px@...esas.com>,
	Mike Turquette <mturquette@...aro.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	devicetree@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/3] clk: emev2: Add support for emev2 SMU clocks with
 DT

On 09/10/13 05:38, Simon Horman wrote:
> On Tue, Oct 08, 2013 at 02:58:08PM +0900, Magnus Damm wrote:
>> On Tue, Oct 8, 2013 at 2:32 PM,<takasi-y@....dti.ne.jp>  wrote:
>>> Device tree clock binding document for EMMA Mobile EV2 SMU,
>>> And Common clock framework based implementation of it.
>>> Following nodes are defined to describe clock tree.
>>> - renesas,emev2-smu
>>> - renesas,emev2-smu-clkdiv
>>> - renesas,emev2-smu-gclk
>>>
>>> These bindings are designed manually based on
>>>   19UH0037EJ1000_SMU : System Management Unit User's Manual
>>>
>>> So far, reparent is not implemented, and is fixed to index #0.
>>> Clock tree description is not included, and should be provided
>>> by device-tree.
>>>
>>> Signed-off-by: Takashi Yoshii<takasi-y@....dti.ne.jp>
>>> ---
>>>   .../devicetree/bindings/clock/emev2-clock.txt      |  98 +++++++++++++++++++
>>>   drivers/clk/Makefile                               |   1 +
>>>   drivers/clk/shmobile/Makefile                      |   3 +
>>>   drivers/clk/shmobile/clk-emev2.c                   | 104 +++++++++++++++++++++
>>>   4 files changed, 206 insertions(+)
>>
>> Thanks for cleaning up the Makefile bits, Yoshii-san.
>>
>> This patch and the bindings look fine to me from a SoC point of view.
>> Using these together with the topology information in emev2.dtsi makes
>> it possible for us to use CCF and multiplatform as expected on the
>> EMEV2 SoC.
>>
>> Acked-by: Magnus Damm<damm@...nsource.se>
>
> Thanks. I will send a pull request for this change to Mike Turquette.

I was going to comment on the last set but forgot.

My set dealt with the following issues

This set does not have any of the module clocks, which I added
in mine. This is also an issue with the clock and serial drivers
which do not ensure the bus/module clocks have been enabled in
the driver.

Mine also dealt with the multiple parents that some of these
clocks have.

I can try and re-post tonight for discussion.

-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius
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