linux-kernel - Re: [PATCH v2 19/22] watchdog: ziirave

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Message-ID: <20190815182417.GO14388@roeck-us.net>
Date:   Thu, 15 Aug 2019 11:24:17 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Andrey Smirnov <andrew.smirnov@...il.com>
Cc:     linux-watchdog@...r.kernel.org, Chris Healy <cphealy@...il.com>,
        Rick Ramstetter <rick@...eaterllc.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 19/22] watchdog: ziirave_wdt: Drop status polling code

On Mon, Aug 12, 2019 at 01:09:03PM -0700, Andrey Smirnov wrote:
> Bootloader firmware doesn't implement DOWNLOAD_START or
> DOWNLOAD_PACKET in a non-blocking way. It will stretch the clock of
> the first status byte read until the operation is complete. Polling
> for the status is not really necessary since it will always succed on
> the first try. Replace polling code with a simple single byte read to
> simplify things.
> 
> Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
> Cc: Chris Healy <cphealy@...il.com>
> Cc: Guenter Roeck <linux@...ck-us.net>
> Cc: Rick Ramstetter <rick@...eaterllc.com>
> Cc: linux-watchdog@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org

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