linux-kernel - Re: [PATCH v3] i2c/mux: Driver for PCA9541 I2C Master Selector

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Date:	Thu, 21 Oct 2010 08:03:00 -0700
From:	Guenter Roeck <guenter.roeck@...csson.com>
To:	Jean Delvare <khali@...ux-fr.org>
CC:	Ben Dooks <ben-linux@...ff.org>,
	Rodolfo Giometti <giometti@...ux.it>,
	"linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] i2c/mux: Driver for PCA9541 I2C Master Selector

On Thu, Oct 21, 2010 at 10:43:04AM -0400, Jean Delvare wrote:
> On Tue, 19 Oct 2010 20:55:08 -0700, Guenter Roeck wrote:
> > This patch adds support for PCA9541, an I2C Bus Master Selector.
> > The driver is modeled as single channel I2C Multiplexer to be able to utilize
> > the I2C multiplexer framework.
> > 
> > Signed-off-by: Guenter Roeck <guenter.roeck@...csson.com>
> > Reviewed-by: Tom Grennan <tom.grennan@...csson.com>
> > ---
> > v3 changes:
> > - Clarified and cleaned up comments.
> > - No longer pass "struct i2c_adapter *" as parameter.
> >   Get it from client->adapter if needed.
> > - No longer pass "struct pca9541 *" as parameter. 
> >   Pass "struct i2c_client *" instead and get "struct pca9541 *" from it
> >   if needed.
> > - Removed "struct i2c_client *client" from struct pca9541 since it is
> >   no longer needed.
> > - Moved "pca9541_release_bus(client);" ahead of i2c_add_mux_adapter()
> >   to avoid a possible race condition. Also protect the call with
> >   i2c_lock_adapter() / i2c_unlock_adapter().
> > - Removed __devinit from pca9541_probe() and __devexit from pca9541_remove().
> 
> Applied, thanks.
> 
> Would you mind adding yourself to MAINTAINERS as a maintainer for this
> driver? While the driver is small, it's not trivial and it's difficult
> to work on it without the right hardware setup.
> 
Sure. Not intentional - I wanted to do that, just forgot. And I agree,
it is pretty much impossible to maintain it unless you have HW to test it.

Want me to resubmit or send a separate patch ?

Thanks,
Guenter
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