linux-kernel - Re: [PATCH 1/3] Device tree binding documentation for chromeos-firmware

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Message-ID: <CAL_JsqLhoEc9M=ZUgqL1_ZFKVN+1UfL=h-mWUdri0O_bqZyf_g@mail.gmail.com>
Date:	Wed, 2 Dec 2015 12:44:38 -0600
From:	Rob Herring <robh@...nel.org>
To:	Martyn Welch <martyn.welch@...labora.co.uk>
Cc:	Olof Johansson <olof@...om.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/3] Device tree binding documentation for chromeos-firmware

On Wed, Dec 2, 2015 at 10:49 AM, Martyn Welch
<martyn.welch@...labora.co.uk> wrote:
>
>
> On 02/12/15 15:15, Rob Herring wrote:
>>
>> On Tue, Dec 01, 2015 at 07:12:49PM +0000, Martyn Welch wrote:
>>>
>>> This patch adds documentation for the chromeos-firmware binding.
>>>
>>> Cc: Rob Herring <robh+dt@...nel.org>
>>> Cc: Pawel Moll <pawel.moll@....com>
>>> Cc: Mark Rutland <mark.rutland@....com>
>>> Cc: Ian Campbell <ijc+devicetree@...lion.org.uk>
>>> Cc: Kumar Gala <galak@...eaurora.org>
>>> Cc: devicetree@...r.kernel.org
>>> Signed-off-by: Martyn Welch <martyn.welch@...labora.co.uk>
>>> ---
>>>   .../devicetree/bindings/misc/chromeos-firmware.txt | 27
>>> ++++++++++++++++++++++
>>
>>
>> bindings/firmware/ please.
>>
>
> OK.
>
>>>   1 file changed, 27 insertions(+)
>>>   create mode 100644
>>> Documentation/devicetree/bindings/misc/chromeos-firmware.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/misc/chromeos-firmware.txt
>>> b/Documentation/devicetree/bindings/misc/chromeos-firmware.txt
>>> new file mode 100644
>>> index 0000000..8240611
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/misc/chromeos-firmware.txt
>>> @@ -0,0 +1,27 @@
>>> +Device-Tree bindings for chromeos-firmware.c.
>>
>>
>> Perhaps a bit more description what this is.
>>
>> What aspect of this is firmware? How does this relate to the EC?
>>
>
> With respect to write-protect, this line is the write protection for the
> flash which holds the bootloader.

What is driving the write-protect? Are trying to assign ownership of
the SOC GPIOs to the bootloader/firmware? If so, I think this is all
wrong.

Rob
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