linux-kernel - Re: [PATCH] i2c: designware: Get selected speed mode sda-hold-time via ACPI

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Message-ID: <20170419185707.ufjpumkpydze2ats@ninjato>
Date:   Wed, 19 Apr 2017 20:57:07 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Tan Chin Yew <chin.yew.tan@...el.com>
Cc:     Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: designware: Get selected speed mode sda-hold-time
 via ACPI

On Tue, Mar 28, 2017 at 04:48:02PM +0800, Tan Chin Yew wrote:
> Sda-hold-time is an important parameter for tuning i2c to meet the
> electrical specification especially for high speed. I2C with incorrect
> sda-hold-time may cause lost arbitration error. Instead of loading all
> speed mode settings, only selected speed mode settings are loaded.
> 
> Signed-off-by: Tan Chin Yew <chin.yew.tan@...el.com>

Applied to for-next, thanks!


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