linux-kernel - Re: [v10, 2/2] Documentation/ABI: Add ABI information for QCOM socinfo driver

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Message-ID: <340a1433-6899-a9bb-3fc0-79b731049843@codeaurora.org>
Date:   Wed, 3 May 2017 18:21:42 +0530
From:   Imran Khan <kimran@...eaurora.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Rob Herring <robh@...nel.org>, Stephen Boyd <sboyd@...eaurora.org>,
        Andy Gross <agross@...eaurora.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "open list:ARM/QUALCOMM SUPPORT" <linux-soc@...r.kernel.org>
Subject: Re: [v10, 2/2] Documentation/ABI: Add ABI information for QCOM
 socinfo driver

On 5/2/2017 4:17 AM, Bjorn Andersson wrote:
> On Mon 01 May 06:07 PDT 2017, Imran Khan wrote:
> 
>> On 4/26/2017 4:38 AM, Bjorn Andersson wrote:
>>> On Tue 25 Apr 10:13 PDT 2017, Rob Herring wrote:
>>>
>>>> On Mon, Apr 24, 2017 at 6:05 PM, Bjorn Andersson
>>>> <bjorn.andersson@...aro.org> wrote:
>>>>> On Mon 24 Apr 09:27 PDT 2017, Rob Herring wrote:
> [..]
>>>>>>>>>>> +What:             /sys/devices/soc0/build_id
> [..]
>>>> Why does the kernel need to provide it?
>>>>
>>>
>>> Imran, can you elaborate on how this information is travels from the
>>> build system to the SMEM item?
>>>
>>
>> This information, along with other SMEM items for this SMEM-id is
>> written by the bootloader (SBL).  Please let me know if this much
>> information suffices in this regard.
> 
> But where does the SBL find this information? Per my previous argument
> it doesn't make sense to store this information compiled into one of the
> components. Is it the CDT perhaps?
> 

Yes SBL is getting this information from CDT.

Thanks and Regards,
Imran
> Regards,
> Bjorn
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