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Re: [PATCH] i2c: imx: add retries for i2c-0 on Ventana boards

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On Thu, Jul 7, 2016 at 11:28 PM, Uwe Kleine-König
<u.kleine-koenig@pengutronix.de> wrote:
> Hello Tim,
>
> On Thu, Jul 07, 2016 at 07:03:49AM -0700, Tim Harvey wrote:
>> Gateworks Ventana IMX6 based boards have a Gateworks System Controller [1]
>> (gsc) device that can NAK i2c transactions when its busy in an ADC loop. As
>> this is always on i2c-0 we will add retries for that bus for any Ventana
>> board.
>
> The right thing is to fix the drivers IMHO.
>

Hi Uwe,

Thanks for the feedack!

The issue I have is that the i2c device emulates several other devices
with existing drivers (pca953x, ds1672, at24) and those drivers don't
have any retry mechanism in place for a retry.

Maybe if I converted those drivers to use regmap I could implement a
regmap with retries in the mfd driver for my device?

Regards,

Tim

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Thread

[PATCH] i2c: imx: add retries for i2c-0 on Ventana boards Tim Harvey <tharvey@gateworks.com> - 2016-07-07 16:00 +0200
  Re: [PATCH] i2c: imx: add retries for i2c-0 on Ventana boards Uwe Kleine-König   <u.kleine-koenig@pengutronix.de> - 2016-07-08 08:30 +0200
    Re: [PATCH] i2c: imx: add retries for i2c-0 on Ventana boards Tim Harvey <tharvey@gateworks.com> - 2016-07-08 21:50 +0200
      Re: [PATCH] i2c: imx: add retries for i2c-0 on Ventana boards Uwe Kleine-König   <u.kleine-koenig@pengutronix.de> - 2016-07-08 23:10 +0200
        Re: [PATCH] i2c: imx: add retries for i2c-0 on Ventana boards Wolfram Sang <wsa@the-dreams.de> - 2016-07-09 04:40 +0200

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