Re: [PATCH V3 4/5] spi: s3c64xx: Added provision for dedicated cs pin

From: Mark Brown
Date: Mon Apr 08 2013 - 08:21:29 EST


On Mon, Apr 08, 2013 at 05:15:26PM +0530, Girish KS wrote:
> On Mon, Apr 8, 2013 at 3:45 PM, Mark Brown

> > Two options here, one is to just assume nobody will use GPIO 0 and the
> > other is to set the number appopriately during probe so that only probe
> > needs to worry about the issue.
>
> In the second option if the gpio number is set in the probe, then we
> are overwriting the
> actual gpio number assigned in the platform data.
> If I move the cs_gpio from the platform data to controller private
> data then the dependency
> on other platforms can be removed, but still the check (true or false)
> before setting the gpio
> line will remain. If agreed upon this i can go ahead and post the patch

I think logic in probe should be fine, it just felt really cumbersome
having this on every single use but doing it once on probe ought to be
OK.

Attachment: signature.asc
Description: Digital signature