linux-kernel - Re: [RFC PATCH 0/2] mfd: syscon: declare holes in syscon register maps

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Message-ID: <54351C25.70604@st.com>
Date:	Wed, 8 Oct 2014 13:12:37 +0200
From:	Maxime Coquelin <maxime.coquelin@...com>
To:	Seraphin Bonnaffe <seraphin.bonnaffe@...com>,
	<b29396@...escale.com>, <linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<lee.jones@...aro.org>
Cc:	<sameo@...ux.intel.com>, <grant.likely@...aro.org>,
	<robh+dt@...nel.org>, <pawel.moll@....com>, <mark.rutland@....com>,
	<ijc+devicetree@...lion.org.uk>, <galak@...eaurora.org>,
	<arnd@...db.de>
Subject: Re: [RFC PATCH 0/2] mfd: syscon: declare holes in syscon register
 maps

Hi Seraphin,

On 10/07/2014 03:22 PM, Seraphin Bonnaffe wrote:
> In reply to mail: Holes management in syscon driver.
> 
> Hi Dong, Maxime, Lee, all,
> 
> Regmap also offers .rd_table and .wr_table structures that can be used to
> specify valid ranges within agiven regmap configuration.
> 
> This patch uses these structures to declare holes in a syscon instance.
> It takes the description from DT, and fills in the structures accordingly.
> 
> Can I have your opinion on this implementation ?

As discussed face to face, it looks fine to me.

But we would like green light in the new "holes" property introduced.

Thanks,
Maxime

> 
> Thanks and Regards,
> Seraphin
> 
> Seraphin Bonnaffe (2):
>    mfd: syscon: Document new DT binding "holes"
>    mfd: syscon: specify rd_table and wr_table from DT
> 
>   Documentation/devicetree/bindings/mfd/syscon.txt |  5 ++++
>   drivers/mfd/syscon.c                             | 35 ++++++++++++++++++++++++
>   2 files changed, 40 insertions(+)
> 
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