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From: Frank Rowand <frowand.list@gmail.com>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: David Gibson <david@gibson.dropbear.id.au>,
	Rob Herring <robh+dt@kernel.org>,
	Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Masahiro Yamada <masahiroy@kernel.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Bill Mills <bill.mills@linaro.org>,
	anmar.oueja@linaro.org
Subject: Re: [PATCH V5 5/5] of: unittest: Statically apply overlays using fdtoverlay
Date: Wed, 20 Jan 2021 23:55:08 -0600	[thread overview]
Message-ID: <91dadafc-26e1-13c1-37a2-d05ebd7b151f@gmail.com> (raw)
In-Reply-To: <20210121054340.e4do45uvdns5bl5f@vireshk-i7>

On 1/20/21 11:43 PM, Viresh Kumar wrote:
> Hi Frank,
> 
> On 20-01-21, 23:34, Frank Rowand wrote:
>> It should be possible to apply this same concept to copying overlay_base.dts
>> to overlay_base_base.dts, removing the "/plugin/;" from overlay_base_base.dts
>> and using an additional rule to use fdtoverlay to apply overlay.dtb on top
>> of overlay_base_base.dtb.
> 
> Are you suggesting to then merge this with testcases.dtb to get
> static_test.dtb

no

> or keep two output files (static_test.dtb from
> testcases.dtb + overlays and static_test2.dtb from overlay_base.dtb
> and overlay.dtb) ?

yes, but using the modified versions ("/plugin/;" removed) of
testcases.dtb and overlay_base.dtb.

> 
> Asking because as I mentioned earlier, overlay_base.dtb doesn't have
> __overlay__ property for its nodes and we can't apply that to
> testcases.dtb using fdtoverlay.

Correct.

I apologize in advance if I get confused in these threads or cause confusion.
I find myself going in circles and losing track of how things fit together as
I move through the various pieces of unittest.

-Frank

> 
>> Yes, overlay_base_base is a terrible name.  Just used to illustrate the point.
>>
>> I tried this by hand and am failing miserably.  But I am not using the proper
>> environment (just a quick hack to see if the method might work).  So I would
>> have to set things up properly to really test this.
>>
>> If this does work, it would remove my objections to you trying to transform
>> the existing unittest .dts test data files (because you would not have to
>> actually modify the existing .dts files).
> 


  reply	other threads:[~2021-01-21  5:56 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-20  7:06 [PATCH V5 0/5] dt: build overlays Viresh Kumar
2021-01-20  7:06 ` [PATCH V5 1/5] scripts: dtc: Fetch fdtoverlay.c from external DTC project Viresh Kumar
2021-01-20  7:06 ` [PATCH V5 2/5] scripts: dtc: Build fdtoverlay tool Viresh Kumar
2021-01-20  7:06 ` [PATCH V5 3/5] scripts: dtc: Remove the unused fdtdump.c file Viresh Kumar
2021-01-21  0:44   ` David Gibson
2021-01-21  4:17     ` Viresh Kumar
2021-01-21  6:26       ` David Gibson
2021-01-21 14:18         ` Rob Herring
2021-01-20  7:06 ` [PATCH V5 4/5] kbuild: Add support to build overlays (%.dtbo) Viresh Kumar
2021-01-20  8:58   ` Masahiro Yamada
2021-01-20  9:55     ` Viresh Kumar
2021-01-20 11:04       ` Masahiro Yamada
2021-01-20 11:27         ` Viresh Kumar
2021-01-21  0:49   ` David Gibson
2021-01-21  4:13     ` Viresh Kumar
2021-01-21  5:40       ` Frank Rowand
2021-01-21  6:25       ` David Gibson
2021-01-20  7:06 ` [PATCH V5 5/5] of: unittest: Statically apply overlays using fdtoverlay Viresh Kumar
2021-01-21  0:51   ` David Gibson
2021-01-21  5:14     ` Frank Rowand
2021-01-21  5:34       ` Viresh Kumar
2021-01-21  5:45         ` Frank Rowand
2021-01-21  5:50           ` Viresh Kumar
2021-01-21  6:36             ` David Gibson
2021-01-21  6:34         ` David Gibson
2021-01-21  6:57           ` Viresh Kumar
2021-01-21 23:39             ` David Gibson
2021-01-22  3:10               ` Viresh Kumar
2021-01-22  4:27                 ` David Gibson
2021-01-21  5:34       ` Frank Rowand
2021-01-21  5:43         ` Viresh Kumar
2021-01-21  5:55           ` Frank Rowand [this message]
2021-01-21  5:58             ` Viresh Kumar
2021-01-21  7:04               ` Frank Rowand
2021-01-21 23:41                 ` David Gibson
2021-01-21  6:37             ` David Gibson
2021-01-20 15:43 ` [PATCH V5 0/5] dt: build overlays Rob Herring
2021-01-21  4:14   ` Viresh Kumar

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