linux-kernel - Re: [PATCH] firmware: stratix10-svc: Drop unnecessary checking for and populating /firmware/ node

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Message-ID: <20200428141148.GA11737@bogus>
Date:   Tue, 28 Apr 2020 15:11:58 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     Richard Gong <richard.gong@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH] firmware: stratix10-svc: Drop unnecessary checking for
 and populating /firmware/ node

On Tue, Apr 28, 2020 at 09:14:25AM -0500, Richard Gong wrote:
> Hi,
> 
> On 4/28/20 3:32 AM, Sudeep Holla wrote:
> > On Mon, Apr 27, 2020 at 02:12:56PM -0500, Richard Gong wrote:
> > > Hi Sudeep,
> > > 
> > > In our dts, firmware is not under root node. You can refer to
> > > arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi for details.
> > > 
> > > This is why we need check and populate firmware node.
> > > 
> > 
> > Ah that's bad. One of very few DTS I see firmware node not in the
> > root.
>
> Per the Devicetree Specification, there is no need to define firmware
> under the root node. Some examples are fsl-ls1012a.dtsi and
> hi6220-hikey.dts.
>

Yes I checked that before I replied, otherwise I would have asked to change
😉 

> > But this driver is the only one duplicating the code
> then Commit 3aa0582fdb82 should be extended to handle firmware which is
> not defined under the root node. I am not sure if it is doable.

I agree, I need to take a look at it again.

-- 
Regards,
Sudeep