linux-kernel - Re: [PATCH v2 3/3] remoteproc/keystone: Ensure the DSPs are in reset in probe

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Date:   Sat, 10 Jun 2017 12:32:43 -0700
From:   Santosh Shilimkar <santosh.shilimkar@...cle.com>
To:     Suman Anna <s-anna@...com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Ohad Ben-Cohen <ohad@...ery.com>
Cc:     Santosh Shilimkar <ssantosh@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, "Andrew F. Davis" <afd@...com>,
        Sam Nelson <sam.nelson@...com>
Subject: Re: [PATCH v2 3/3] remoteproc/keystone: Ensure the DSPs are in reset
 in probe

On 6/7/2017 5:24 PM, Suman Anna wrote:
> From: "Andrew F. Davis" <afd@...com>
> 
> The DSPs are expected to be in reset when the driver probes a device.
> If the DSPs are out of reset in probe, the system may crash when the
> firmware is being loaded. So, add a check to make sure the DSP resets
> are asserted, and if not, throw a eye-catchy warning and assert the
> resets specifically.
> 
> Signed-off-by: Andrew F. Davis <afd@...com>
> [s-anna@...com: replace warning with a WARN]
> Signed-off-by: Suman Anna <s-anna@...com>
> ---
Acked-by: Santosh Shilimkar <ssantosh@...nel.org>