linux-kernel - Re: [PATCH 1/7] mfd: cros_ec: spi: calculate delay between transfers correctly

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Message-ID: <CAPnjgZ0AabYa=VF9E=mLKYwE5YJraW2iRHCtmKNbtji58grrwA@mail.gmail.com>
Date:	Fri, 18 Apr 2014 11:27:31 -0600
From:	Simon Glass <sjg@...omium.org>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Lee Jones <lee.jones@...aro.org>,
	Stephen Warren <swarren@...dia.com>,
	Wolfram Sang <wsa@...-dreams.de>,
	Andrew Bresticker <abrestic@...omium.org>,
	Dylan Reid <dgreid@...omium.org>,
	Olof Johansson <olof@...om.net>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	David Hendricks <dhendrix@...omium.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	lk <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/7] mfd: cros_ec: spi: calculate delay between transfers correctly

On 17 April 2014 11:59, Doug Anderson <dianders@...omium.org> wrote:
> From: David Hendricks <dhendrix@...omium.org>
>
> To avoid spamming the EC we calculate the time between the previous
> transfer and the current transfer and force a delay if the time delta
> is too small.
>
> However, a small miscalculation causes the delay period to be
> far too short. Most noticably this impacts commands with a long
> turnaround time such as EC firmware reads and writes.
>
> Signed-off-by: David Hendricks <dhendrix@...omium.org>
> Signed-off-by: Doug Anderson <dianders@...omium.org>

Reviewed-by: Simon Glass <sjg@...omium.org>
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