linux-kernel - Re: Add MediaTek MT6873 devapc driver

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Message-ID: <20200609173204.GB1107294@bogus>
Date:   Tue, 9 Jun 2020 11:32:04 -0600
From:   Rob Herring <robh@...nel.org>
To:     Neal Liu <neal.liu@...iatek.com>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        wsd_upstream@...iatek.com
Subject: Re: Add MediaTek MT6873 devapc driver

On Tue, Jun 09, 2020 at 06:24:19PM +0800, Neal Liu wrote:
> These patch series introduce a MediaTek MT6873 devapc driver.
> 
> MT6873 bus frabric provides TrustZone security support and data
> protection to prevent slaves from being accessed by unexpected
> masters.
> The security violations are logged and sent to the processor for
> further analysis or countermeasures.
> 
> Any occurrence of security violation would raise an interrupt, and
> it will be handled by devapc-mt6873 driver. The violation
> information is printed in order to find the murderer.

There's also a proposed driver with similar functionality[1]. Come up 
with a common solution.

Rob

[1] https://lore.kernel.org/linux-arm-kernel/20200128153806.7780-1-benjamin.gaignard@st.com/