Re: [PATCH V2 1/6] drivers: bus: add a new driver for WEIM

[Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>]

On Thu, May 23, 2013 at 11:53:37AM +0200, Arnd Bergmann wrote:
> On Thursday 23 May 2013, Huang Shijie wrote:
> > 于 2013年05月23日 17:23, Sascha Hauer 写道:
> > > On Thu, May 23, 2013 at 04:16:13PM +0800, Huang Shijie wrote:
> > >> +			<cs-number>  0<physical address of mapping>  <size>
> > >> +
> > >> +Timing property for child nodes. It is mandatory, not optional.
> > >> +
> > >> + - fsl,weim-cs-timing:	The timing array, contains 6 timing values for the
> > >> +			child node. We can get the CS index from the child
> > >> +			node's "reg" property.
> > > This should be more detailed, something like:
> > >
> > > This contains the values for the registers EIM_CSnGCR1, EIM_CSnGCR2,
> > > EIM_CSnRCR1, EIM_CSnRCR2, EIM_CSnWCR1, EIM_CSnWCR2 in this order.
> > >
> > 
> > 
> > do you mean i should add some new properties, such as
> > "fsl,eim_csnrcr1", "fsl,eim_csnrcr2" ...
> 
> No, the property is fine, just update the documentation the way that
> Sascha suggested.

Yes, that's what I meant.

> 
> > >> +static int weim_remove(struct platform_device *pdev)
> > >> +{
> > >> +	struct imx_weim *weim = platform_get_drvdata(pdev);
> > >> +
> > >> +	clk_disable_unprepare(weim->clk);
> > > Once again: Is this clock needed for the child devices? If yes, you
> > > can't disable it here and leave the child devices registered.
> > >
> 
> But weim_remove will not be called as long as there are children
> registered, right?

But then weim_remove would never be called since nobody unregisters the
children, right?

Sascha

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