On Fri, Jan 08, 2010 at 03:30:36PM +0800, Eric Miao wrote: > On Fri, Jan 8, 2010 at 2:32 PM, Ben Dooks <ben-linux@xxxxxxxxx> wrote: > > Add a call to get the 'struct gpio_chip' pointer for a given gpio, so > > that core implementations which want to use gpiolib gpio numbering for > > things like mux configuration can get back to the gpio_chip that they > > registered without having to have their own list of gpio. > > > > This is especially useful for the Samsung S3C64XX series where the GPIO > > bank sizes can vary from 32 down to 3, making it difficult to store an > > array to convert a number to chip. > > > > I think this is generally a good idea. Will most likely be useful to > pxa platforms as well. Not sure though if you want to export this > symbol as well since we do allow gpio chip drivers to be modules. Probably not, since all the gpio call methods pass gpio_chip as their first parameter. This is only in the case we want to use gpios for something other than in/out/irq. -- Ben Q: What's a light-year? A: One-third less calories than a regular year. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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