linux-kernel - Re: [PATCHv2 3/8] ARM: EXYNOS: Add IO mapping for PMU of Exynos3250

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Message-id: <534CF0D6.5030400@samsung.com>
Date:	Tue, 15 Apr 2014 17:41:58 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Vikas Sajjan <sajjan.linux@...il.com>
Cc:	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	linux@....linux.org.uk, ben-linux@...ff.org,
	Kukjin Kim <kgene.kim@...sung.com>,
	Tomasz Figa <t.figa@...sung.com>,
	Thomas Abraham <thomas.abraham@...aro.org>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	sw0312.kim@...sung.com, hyunhee.kim@...sung.com,
	yj44.cho@...sung.com, chanho61.park@...sung.com,
	Olof Johansson <olof@...om.net>, marc.zyngier@....com,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, devicetree@...r.kernel.org
Subject: Re: [PATCHv2 3/8] ARM: EXYNOS: Add IO mapping for PMU of Exynos3250

Hi,

On 04/15/2014 05:39 PM, Vikas Sajjan wrote:
> Hi,
> 
> On Tue, Apr 15, 2014 at 2:02 PM, Chanwoo Choi <cw00.choi@...sung.com> wrote:
>> Hi,
>>
>> On 04/15/2014 05:11 PM, Arnd Bergmann wrote:
>>> On Tuesday 15 April 2014 10:59:47 Chanwoo Choi wrote:
>>>> This patch add memory mapping for PMU (Power Management Unit) which is used
>>>> for power control of Exynos3250.
>>>>
>>>> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
>>>> Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
>>>> ---
>>>> Arnd Bergmann suggested that need proper driver instead of static memory mapping.
>>>> As Chanho Park reply[2], Sachin Kamat already posted the DT support patch[1]
>>>> for memory mapping for SYSRAM.
>>>> [1] http://www.spinics.net/lists/linux-samsung-soc/msg27647.html
>>>> [2] https://lkml.org/lkml/2014/4/10/161
>>>>
>>>> So, I'm going to re-implement following patch related to static memory mapping
>>>> after merged Sachin Kamat patch[1].
>>>>   ARM: EXYNOS: Add IO mapping for PMU of Exynos3250
>>>
>>> I don't think we have a patch for the PMU yet, Sachin was looking at the SYSRAM
>>> only.
>>
>> You are right. Sachin's patch only included the solution of SYSRAM memory mapping.
>> I set out the plan that I would implment proper driver for PMU memory mapping
>> instead of static method after merged Sachin's patch for SYSRAM.
>>
>> But,
>> If you'd like me to implment PMU memory mapping instead of static mapping right now,
>> I'll implement it for PMU such as Sachin's patch on next posting(v3).
>>
> 
> I have already posted patch[1] for mapping PMU through DT as part of
> my PMU series for exynos5260.
> You can rebase on the same.
> 
> 
> [1] http://www.spinics.net/lists/arm-kernel/msg316013.html

OK, I'll rebase it after merged PMU mapping patch[1].

Thanks,
Chanwoo Choi

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