linux-kernel - Re: [PATCH ] i2c: omap: recover from Bus Busy condition

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Message-ID: <4EA50F7F.6000400@st.com>
Date:	Mon, 24 Oct 2011 12:40:55 +0530
From:	Rajeev kumar <rajeev-dlh.kumar@...com>
To:	Shubhrajyoti D <shubhrajyoti@...com>
Cc:	"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Vikram Pandita <vikram.pandita@...com>
Subject: Re: [PATCH ] i2c: omap: recover from Bus Busy condition

On 10/24/2011 12:21 PM, Shubhrajyoti D wrote:
> From: Vikram Pandita<vikram.pandita@...com>
>
>      In case a peripheral is holding the DATA bus low, provide a 400Khz
>      constant clock output using the TEST register.
>
>      Also soft reset the I2C controller so that there is no stale state
>      left in the HW state machine.
>
>      A WARN_ON() will be generated when a BB timeout happens.
>
> Signed-off-by: Vikram Pandita<vikram.pandita@...com>
> Signed-off-by: Shubhrajyoti D<shubhrajyoti@...com>
> ---
>   drivers/i2c/busses/i2c-omap.c |   15 +++++++++++++--
>   1 files changed, 13 insertions(+), 2 deletions(-)


Reviewed-by: Rajeev Kumar <rajeev-dlh.kumar@...com>


~Rajeev
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