Re: [PATCH v2 2/2] ARM: dts: at91: disable the nxp,se97b SMBUS timeout on the TSE-850

Guenter Roeck
2017-11-29T20:53:18Z

On Mon, Nov 27, 2017 at 05:31:01PM +0100, Peter Rosin wrote:
> The I2C adapter driver is sometimes slow, causing the SCL line to
> be stuck low for more than the stipulated SMBUS timeout of 25-35 ms.
> This causes the client device to give up which in turn causes silent
> corruption of data. So, disable the SMBUS timeout in the client device.
>
> Signed-off-by: Peter Rosin <peda@axentia.se>

Acked-by: Guenter Roeck <linux@roeck-us.net>

I assume this will be sent upstream through an arm tree.

Thanks,
Guenter

> ---
> arch/arm/boot/dts/at91-tse850-3.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/at91-tse850-3.dts b/arch/arm/boot/dts/at91-tse850-3.dts
> index 5f29010cdbd8..9b82cc8843e1 100644
> --- a/arch/arm/boot/dts/at91-tse850-3.dts
> +++ b/arch/arm/boot/dts/at91-tse850-3.dts
> @@ -221,6 +221,7 @@
> jc42@18 {
> compatible = "nxp,se97b", "jedec,jc-42.4-temp";
> reg = <0x18>;
> + smbus-timeout-disable;
> };
>
> dpot: mcp4651-104@28 {
> --
> 2.11.0
>