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Date:   Thu, 2 Apr 2020 23:00:48 -0700
From:   Guenter Roeck <linux@roeck-us.net>
To:     Evan Benn <evanbenn@chromium.org>
Cc:     LKML <linux-kernel@vger.kernel.org>, xingyu.chen@amlogic.com,
        jwerner@chromium.org,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Anson Huang <Anson.Huang@nxp.com>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        "David S. Miller" <davem@davemloft.net>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jonathan Cameron <Jonathan.Cameron@huawei.com>,
        Leonard Crestez <leonard.crestez@nxp.com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
        Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        Olof Johansson <olof@lixom.net>, Rob Herring <robh@kernel.org>,
        Shawn Guo <shawnguo@kernel.org>,
        Valentin Schneider <valentin.schneider@arm.com>,
        Vinod Koul <vkoul@kernel.org>, Will Deacon <will@kernel.org>,
        Wim Van Sebroeck <wim@linux-watchdog.org>,
        linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-watchdog@vger.kernel.org
Subject: Re: [PATCH v2 2/2] watchdog: Add new arm_smd_wdt watchdog driver
Message-ID: <20200403060048.GA206691@roeck-us.net>
References: <20200403052900.258855-1-evanbenn@chromium.org>
 <20200403162742.v2.2.Ia92bb4d4ce84bcefeba1d00aaa1c1e919b6164ef@changeid>
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On Fri, Apr 03, 2020 at 04:29:00PM +1100, Evan Benn wrote:
> From: Julius Werner <jwerner@chromium.org>
> 
> This patch adds a watchdog driver that can be used on ARM systems
> with the appropriate watchdog implemented in Secure Monitor firmware.
> The driver communicates with firmware via a Secure Monitor Call.
> This may be useful for platforms using TrustZone that want
> the Secure Monitor firmware to have the final control over the watchdog.
> 
> This is implemented on mt8173 chromebook devices oak, elm and hana in
> arm trusted firmware file plat/mediatek/mt8173/drivers/wdt/wdt.c.
> 
> Signed-off-by: Julius Werner <jwerner@chromium.org>
> Signed-off-by: Evan Benn <evanbenn@chromium.org>

Reviewed-by: Guenter Roeck <linux@roeck-us.net>

Guenter