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SubjectRe: [PATCH v2 2/2] watchdog: Add new arm_smd_wdt watchdog driver
On Fri, Apr 03, 2020 at 04:29:00PM +1100, Evan Benn wrote:
> From: Julius Werner <>
> 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 <>
> Signed-off-by: Evan Benn <>

Reviewed-by: Guenter Roeck <>


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