Message-ID: <53BC0CBE.4060608@ti.com>
Date: Tue, 8 Jul 2014 10:22:38 -0500
From: Suman Anna <s-anna@ti.com>
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To: Ohad Ben-Cohen <ohad@wizery.com>
CC: Mark Rutland <mark.rutland@arm.com>, Kumar Gala <galak@codeaurora.org>,
        Tony Lindgren <tony@atomide.com>,
        Josh Cartwright <joshc@codeaurora.org>,
        Bjorn Andersson <bjorn@kryo.se>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        linux-arm <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCHv5 03/15] hwspinlock/core: maintain a list of registered
 hwspinlock banks
References: <1398904476-26200-1-git-send-email-s-anna@ti.com> <1398904476-26200-4-git-send-email-s-anna@ti.com> <CAK=WgbakGbTaYz+4K24aT3vyRkDYwPKCm6XrcJvH667NMMfTTA@mail.gmail.com> <53B47621.6090307@ti.com> <CAK=WgbYtJ7TGqvjG3VAPPD5tVXx9-jEJU3iKEStUMxOvD1v=LQ@mail.gmail.com> <53B592CE.2010001@ti.com> <CAK=WgbaahqdmWRDMKtRhco4y5B-WBFYDHYs2cLM7NL=QhnhK2Q@mail.gmail.com>
In-Reply-To: <CAK=WgbaahqdmWRDMKtRhco4y5B-WBFYDHYs2cLM7NL=QhnhK2Q@mail.gmail.com>
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Sender: linux-kernel-owner@vger.kernel.org

Hi Ohad,

On 07/04/2014 12:01 AM, Ohad Ben-Cohen wrote:
> Hi Suman,
> 
> On Thu, Jul 3, 2014 at 8:28 PM, Suman Anna <s-anna@ti.com> wrote:
>> OK, but we would still require this function to lookup the registered
>> device from the controller-phandle to retrieve the base_id.
> 
> Can we retrieve the base_id from the parent DT node itself?

Yeah, it is possible using the of_hwspin_lock_get_base_id function added
in Patch8, once we convert the phandle to a device node. The platform
implementations would be using this function during the registration
phase to register the base id, and we have to do the DT parse/lookup
again in the core.

regards
Suman
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