linux-kernel - Re: [PATCH 1/2] remoteproc: qcom_q6v5_mss: Don't reassign mpss region on shutdown

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Message-ID: <CAOCk7Noq8dvKsWzAfAXRGhmoMG4_tHD0kw8_KVEBvyjm_fGc5A@mail.gmail.com>
Date:   Thu, 31 Oct 2019 13:36:45 -0600
From:   Jeffrey Hugo <jeffrey.l.hugo@...il.com>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Ohad Ben-Cohen <ohad@...ery.com>,
        Avaneesh Kumar Dwivedi <akdwived@...eaurora.org>,
        MSM <linux-arm-msm@...r.kernel.org>,
        linux-remoteproc@...r.kernel.org,
        lkml <linux-kernel@...r.kernel.org>,
        Jeffrey Hugo <jhugo@...eaurora.org>,
        Sibi Sankar <sibis@...eaurora.org>, stable@...r.kernel.org
Subject: Re: [PATCH 1/2] remoteproc: qcom_q6v5_mss: Don't reassign mpss region
 on shutdown

On Thu, Oct 31, 2019 at 12:48 PM Bjorn Andersson
<bjorn.andersson@...aro.org> wrote:
>
> Trying to reclaim mpss memory while the mba is not running causes the
> system to crash on devices with security fuses blown, so leave it
> assigned to the remote on shutdown and recover it on a subsequent boot.
>
> Fixes: 6c5a9dc2481b ("remoteproc: qcom: Make secure world call for mem ownership switch")
> Cc: stable@...r.kernel.org
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---

Excellent.  This addresses the issue I was seeing with the Lenovo Miix 630

Reviewed-by: Jeffrey Hugo<jeffrey.l.hugo@...il.com>
Tested-by: Jeffrey Hugo<jeffrey.l.hugo@...il.com>