From: Bhaumik Bhatt <bbhatt@codeaurora.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org,
carl.yin@quectel.com, naveen.kumar@quectel.com,
jhugo@codeaurora.org, linux-kernel@vger.kernel.org,
loic.poulain@linaro.org
Subject: Re: [PATCH v2 1/3] bus: mhi: core: Clear devices when moving execution environments
Date: Thu, 04 Feb 2021 15:52:49 -0800 [thread overview]
Message-ID: <fb1246c0bbc2ebef6ef97f2645d3a741@codeaurora.org> (raw)
In-Reply-To: <20210121075022.GA30041@thinkpad>
Hi Mani,
On 2021-01-20 11:50 PM, Manivannan Sadhasivam wrote:
> On Thu, Jan 14, 2021 at 11:16:33AM -0800, Bhaumik Bhatt wrote:
>> When moving from SBL to mission mode execution environment, there
>> is no remove callback notification to MHI client drivers which
>> operate on SBL mode only. Client driver devices are being created
>> in SBL or AMSS(mission mode) and only destroyed after power down
>> or SYS_ERROR. If there exist any SBL-specific channels, those are
>> left open and client drivers are thus unaware of the new execution
>> environment where those channels cannot operate. Close the gap and
>> issue remove callbacks to SBL-specific client drivers once device
>> enters mission mode.
>>
>
> What are the SBL specific channels and the client drivers operating on
> them?
> If this is something going to come in future, then this patch can come
> later.
>
> Thanks,
> Mani
Carl from Quectel (CC'd here) will need this patch as he works on EDL
and Flash
Programmer changes which also needs usage of QSAHARA server over SBL.
Thanks,
Bhaumik
---
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora
Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2021-02-04 23:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-14 19:16 [PATCH v2 0/3] Serialize execution environment changes for MHI Bhaumik Bhatt
2021-01-14 19:16 ` [PATCH v2 1/3] bus: mhi: core: Clear devices when moving execution environments Bhaumik Bhatt
2021-01-15 17:45 ` Hemant Kumar
2021-01-21 7:50 ` Manivannan Sadhasivam
2021-02-04 23:52 ` Bhaumik Bhatt [this message]
2021-01-14 19:16 ` [PATCH v2 2/3] bus: mhi: core: Download AMSS image from appropriate function Bhaumik Bhatt
2021-01-15 18:58 ` Hemant Kumar
2021-01-14 19:16 ` [PATCH v2 3/3] bus: mhi: core: Process execution environment changes serially Bhaumik Bhatt
2021-01-15 19:02 ` Hemant Kumar
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