linux-kernel - Re: [PATCH v2 1/3] devicetree: bindings: Document qcom,msm-id and qcom,board-id

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Message-ID: <CAOesGMgy3VY=4-t+N0BYqCuSLQkh-rYe8nd9iJh1mMeBFz_sWQ@mail.gmail.com>
Date:	Thu, 5 Mar 2015 17:59:35 -0800
From:	Olof Johansson <olof@...om.net>
To:	Kumar Gala <galak@...eaurora.org>
Cc:	Kevin Hilman <khilman@...nel.org>,
	linux-arm-msm <linux-arm-msm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"arm@...nel.org" <arm@...nel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Heiko Stübner <heiko@...ech.de>
Subject: Re: [PATCH v2 1/3] devicetree: bindings: Document qcom,msm-id and qcom,board-id

On Thu, Mar 5, 2015 at 12:23 PM, Kumar Gala <galak@...eaurora.org> wrote:
>
> On Mar 5, 2015, at 1:42 PM, Kevin Hilman <khilman@...nel.org> wrote:
>
>> Kumar Gala <galak@...eaurora.org> writes:
>>
>>> The top level qcom,msm-id and qcom,board-id are utilized by bootloaders
>>> on Qualcomm MSM platforms to determine which device tree should be
>>> utilized and passed to the kernel.
>>>
>>> Cc: <devicetree@...r.kernel.org>
>>> Signed-off-by: Kumar Gala <galak@...eaurora.org>
>>
>> Is this the special magic that allows qcom bootloaders to take a kernel
>> plus multiple DTBs and figure out which DTB to pass?
>>
>> Kevin
>
> yes

That's a bummer.

Luckily, the solution for upstream is still quite simple: Provide only
one devicetree, and it'll be used, right?


-Olof
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