linux-kernel - Re: [PATCH v1 0/7] MHI Emergency download and flash programmer support

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Date:   Wed, 31 Mar 2021 10:01:04 -0700
From:   Bhaumik Bhatt <bbhatt@...eaurora.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, hemantk@...eaurora.org,
        jhugo@...eaurora.org, linux-kernel@...r.kernel.org,
        carl.yin@...ctel.com, naveen.kumar@...ctel.com,
        loic.poulain@...aro.org, abickett@...eaurora.org
Subject: Re: [PATCH v1 0/7] MHI Emergency download and flash programmer
 support

Hi Mani,
On 2021-03-31 04:16 AM, Manivannan Sadhasivam wrote:
> On Mon, Mar 29, 2021 at 06:28:17PM -0700, Bhaumik Bhatt wrote:
>> Allow handling EDL mode after SYS_ERROR occurs by reading the 
>> execution
>> environment post handling and move to power on reset state to 
>> accommodate the
>> scenario.
>> Handle EDL mode properly and wait for ready instead of just exiting 
>> from the
>> firmware load.
>> Allow use of the Flash Programmer execution environment as a mission 
>> mode
>> use case for a blank NAND power up scenario.
>> Always attempt a wait for MHI ready state as device could be waiting 
>> for the
>> host to do so after pass through execution environment is seen.
>> Introduce patch to improve state awareness and aid in debugging.
>> 
>> This patch series was tested on x86_64 architecture.
>> 
> 
> These patches were part of a different series before. It is good that
> you splitted the patches but you should mention that here.
> 
> Thanks,
> Mani
> 
I will keep that in mind when submitting next time.

>> Bhaumik Bhatt (6):
>>   bus: mhi: core: Rely on accurate method to determine EDL mode
>>   bus: mhi: core: Wait for ready after an EDL firmware download
>>   bus: mhi: core: Handle EDL mode entry appropriately
>>   bus: mhi: core: Identify Flash Programmer as a mission mode use case
>>   bus: mhi: core: Wait for MHI READY state in most scenarios
>>   bus: mhi: core: Improve state strings for debug messages
>> 
>> Carl Yin (1):
>>   bus: mhi: core: Add support for Flash Programmer execution 
>> environment
>> 
>>  drivers/bus/mhi/core/boot.c     | 13 +++++++------
>>  drivers/bus/mhi/core/init.c     | 34 
>> ++++++++++++++++++----------------
>>  drivers/bus/mhi/core/internal.h |  4 +++-
>>  drivers/bus/mhi/core/main.c     |  3 +++
>>  drivers/bus/mhi/core/pm.c       | 28 +++++++++++++++++++++++++---
>>  include/linux/mhi.h             |  4 +++-
>>  6 files changed, 59 insertions(+), 27 deletions(-)
>> 
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
>> Forum,
>> a Linux Foundation Collaborative Project
>> 

Thanks,
Bhaumik
---
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora 
Forum,
a Linux Foundation Collaborative Project