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Date: Tue, 11 Aug 2015 15:39:41 +0530
From: Viresh Kumar <viresh.kumar@linaro.org>
To: Lee Jones <lee.jones@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>, Rob Herring <robherring2@gmail.com>,
        Nishanth Menon <nm@ti.com>, kernel@stlinux.com,
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        Ajit Pal Singh <ajitpal.singh@st.com>,
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	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v4 2/2] dt: power: st: Provide bindings for ST's OPPs
Message-ID: <20150811100941.GG5509@linux>
References: <20150728225510.GB3159@codeaurora.org>
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On 11-08-15, 10:30, Lee Jones wrote:
> On Tue, 11 Aug 2015, Viresh Kumar wrote:
> 
> > On 10-08-15, 14:22, Lee Jones wrote:
> > > >  Optional properties:
> > > > +- opp-cuts: One or more strings, describing the versions of hardware the OPPs
> > > > +  can support.
> > > 
> > > This isn't very generic.
> > > 
> > > I'm guessing some vendors my have quite a few ways to differentiate
> > > between board versions/revisions/cuts etc.
> > > 
> > > How about another array where a vendor can choose to identify a piece
> > > of hardware however they see fit.
> > > 
> > > Example 1 (simple version):
> > > 
> > > /* Version 1 */
> > > opp-version = <1>;
> > > 
> > > Example 2 (using the kernel's versioning):
> > > 
> > > /* 2.6.32-rc1 */
> > > opp-version = <2 6 32 1>;
> > > 
> > > Example 3 (using ST's versioning):
> > > 
> > > /* Major 2, Minor 0, Cut 2, All substrates */
> > > opp-version = <2 0 2 0xff>;
> > 
> > But how will we parse this with generic code ?
> 
> Why would you want to?

So that individual platforms don't need to reinvent the wheel ?

-- 
viresh