Re: PCA9564: "bus is not idle" issue

[Wolfram Sang <w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>]

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On Wed, Mar 17, 2010 at 01:59:03PM +0100, Yegor Yefremov wrote:
> Hi,
> 
> I'm using PCA9564 attached to a ks8695 SoC. During my efforts to get
> 2.6.33/34 running on my system I noticed sporadic problems with RTC:

[...]

> static struct i2c_pca9564_pf_platform_data  __initdata pca_data ={
> 	    .gpio = -1,
> 	    .i2c_clock_speed = 59000,
> 	    .timeout = 1,
> };

Commit 8e99ada8deaa9033600cd2c7d0a9366b0e99ab68 changed the timeout settings to
jiffies. So, one jiffy as timeout will not work. Try 'HZ' here.

> before. Diffing i2c-algo-pca.c between 2.6.26 and 2.6.33 showed that
> there were some minor changes regarding waiting policy in pca_xfer().
> Could this be the reason for such behavior? Any idea?

You were almost there, just use 'git log' next time.

Kind regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
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